Wire galloping detection method and device, terminal equipment and storage medium

Abstract

The invention discloses a conductor galloping detection method and device, terminal equipment and a storage medium. The method comprises the following steps: acquiring vibration information of a to-be-detected conductor; identifying the sag of a to-be-detected wire, and determining a galloping amplitude threshold corresponding to the to-be-detected wire according to the sag; and under the condition that the vibration information comprises the amplitudes of the detection points on the to-be-detected wire, comparing the maximum amplitude of the amplitudes of the detection points with the galloping amplitude threshold, and then triggering alarm and generating first alarm information when determining that the maximum amplitude is greater than the galloping amplitude threshold. By implementing the embodiment of the invention, the accuracy of conductor galloping detection can be improved.

Description

Technical Field

[0001] The present invention relates to the field of wire monitoring technology, and in particular to a wire dancing detection method, device, terminal equipment and storage medium. Background Art

[0002] As the artery of the power system, the transmission stability of the transmission cable is a key link in whether the entire power system can operate safely. However, when extreme weather conditions such as strong winds and ice cover occur, the conductor galloping will affect the safe and stable operation of the power system. For example, conductor galloping may cause accidents such as flashover and tower breakage, resulting in large-scale power outages and huge economic losses.

[0003] In the prior art, the amplitude of the conductor is usually monitored. When the amplitude is greater than the amplitude threshold, it is determined that the conductor is dancing. However, this method usually uses a unified amplitude threshold to judge different conductors, which has the problem of inaccurate judgment. Summary of the invention

[0004] The embodiments of the present invention provide a wire galloping detection method, an apparatus, a terminal device and a storage medium, which can improve the accuracy of wire galloping detection.

[0005] An embodiment of the present invention provides a method for detecting wire galloping, comprising:

[0006] Obtaining vibration information of the wire to be detected;

[0007] Identifying the sag of the wire to be detected, and determining a galloping amplitude threshold corresponding to the wire to be detected according to the sag;

[0008] In the case where the vibration information includes the amplitudes of each detection point on the wire to be detected, the maximum amplitude of the amplitudes of each detection point is compared with the dancing amplitude threshold, and then when it is determined that the maximum amplitude is greater than the dancing amplitude threshold, an alarm is triggered and a first alarm information is generated.

[0009] Further, the identifying the sag of the wire to be detected includes:

[0010] Obtain the heights of the supporting points at both ends of the wire to be detected;

[0011] When it is determined that the two end support points are located on the same horizontal line according to their heights, the verticality of the wire to be detected is determined by the flat parabola method according to the weight per unit length, horizontal span and tension of the wire to be detected.

[0012] Furthermore, the identifying of the verticality of the wire to be detected also includes: when it is determined that the two end support points are not located on the same horizontal line according to the heights of the two end support points, the verticality of the wire to be detected is determined by the oblique parabola method according to the height difference of the two end support points, the horizontal span and tension of the wire to be detected.

[0013] Furthermore, in the case where the vibration information includes the vibration frequency of the wire to be detected and the amplitude of each detection point on the wire to be detected, the wire dancing detection method also includes: comparing the maximum amplitude of the amplitudes of each detection point with the dancing amplitude threshold, and comparing the vibration frequency with a preset dancing frequency threshold; when it is determined that the vibration frequency is greater than the dancing frequency threshold and the maximum amplitude is greater than the dancing amplitude threshold, triggering an alarm and generating a second alarm information.

[0014] Furthermore, when generating the first alarm information, the first alarm information includes: the maximum amplitude and the position of the detection point corresponding to the maximum amplitude; when generating the second alarm information, the second alarm information includes: the vibration frequency, the maximum amplitude and the position of the detection point corresponding to the maximum amplitude.

[0015] Furthermore, at the end of each detection cycle, the number of alarms triggered within the detection cycle, the maximum amplitude when the alarm is triggered each time, the detection point corresponding to the maximum amplitude when the alarm is triggered each time, and the number of alarms triggered corresponding to each detection point are counted to generate an alarm analysis report.

[0016] Furthermore, a vibration sensing optical fiber is coupled to the conductor to be detected, and vibration information of the conductor is obtained through the vibration sensing optical fiber.

[0017] Based on the above method embodiment, the present invention provides a corresponding device embodiment;

[0018] Another embodiment of the present invention provides a wire dancing detection device, including: a vibration information extraction module, a dancing threshold determination module and a first early warning module;

[0019] A vibration information extraction module is used to obtain vibration information of the wire to be detected;

[0020] A dancing threshold determination module, used to identify the sag of the wire to be detected, and determine the dancing amplitude threshold corresponding to the wire to be detected according to the sag;

[0021] The first early warning module, when the vibration information includes the amplitudes of each detection point on the wire to be detected, compares the maximum amplitude of the amplitudes of each detection point with the dancing amplitude threshold, and then triggers an alarm and generates a first alarm information when it is determined that the maximum amplitude is greater than the dancing amplitude threshold.

[0022] Based on the above method embodiment, the present invention provides a corresponding terminal device embodiment;

[0023] Another embodiment of the present invention provides a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, a wire dancing detection method as described in any one of the embodiments is implemented.

[0024] Based on the above method embodiment, the present invention provides a storage medium item accordingly;

[0025] Another embodiment of the present invention provides a storage medium, which includes a stored computer program, wherein when the computer program is executed, the device where the storage medium is located is controlled to execute a wire dancing detection method as described in any one of the above embodiments.

[0026] The following beneficial effects are achieved by implementing the present invention:

[0027] The present invention discloses a wire dancing detection method, device, terminal equipment and storage medium, the method comprising: obtaining vibration information of the wire to be detected; identifying the sag of the wire to be detected, and determining the dancing amplitude threshold corresponding to the wire to be detected according to the sag; when the vibration information includes the amplitude of each detection point on the wire to be detected, comparing the maximum amplitude of the amplitudes of each detection point with the dancing amplitude threshold, and then triggering an alarm and generating a first alarm message when determining that the maximum amplitude is greater than the dancing amplitude threshold. Compared with the prior art, when performing dancing detection, the present invention first determines the corresponding dancing amplitude threshold according to the sag of the wire to be detected. It can be understood that wires with different sags will correspond to different dancing amplitude thresholds. By determining the corresponding dancing amplitude threshold by sag, the dancing amplitude threshold can be made more targeted and more in line with the actual dancing of the wire to be detected, thereby improving the accuracy of wire dancing detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The figure is a flow chart of a wire dancing detection method provided by an embodiment of the present invention.

[0029] Figure 2 It is a structural schematic diagram of a wire dancing detection device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0032] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0035] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0036] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0037] See also Figure 1 , is a flow chart of a wire galloping detection method provided by an embodiment of the present invention, comprising:

[0038] S1. Obtain vibration information of the wire to be detected.

[0039] In a preferred embodiment, a vibration sensing optical fiber is coupled to the conductor to be detected, and vibration information of the conductor is obtained through the vibration sensing optical fiber.

[0040] Specifically, in the present invention, the above-mentioned conductor to be detected can be an OPPC conductor (Optical Phase Conductor) to be detected. The OPPC conductor is a composite conductor that combines an optical fiber with a power transmission line. A vibration sensing optical fiber can be implanted in the OPPC conductor to monitor the vibration information of the conductor in real time.

[0041] After the vibration sensing optical fiber is implanted in the conductor, the optical signal reflected from the vibration sensing optical fiber can be collected by the detector and converted into an electrical signal. The collected electrical signal is then demodulated to extract vibration information; preferably, the vibration information may include the amplitude of multiple detection points in the conductor.

[0042] Specifically, the electrical signal may be adjusted by using DVS (Distributed Optical Fiber Vibration Sensing System) technology to obtain the amplitudes of multiple detection points in the conductor.

[0043] DVS technology is an optical instrument that uses optical fiber as a sensor for vibration perception. The system uses a single optical fiber to simultaneously monitor vibration and transmit signals. It comprehensively utilizes the Backward Rayleigh Coherent Scattering (BRCS) effect in the optical fiber and the Optical Time Domain Reflectometer (OTDR) to simultaneously realize the perception and spatial positioning functions of vibration events.

[0044] S2. Identify the sag of the wire to be detected, and determine the dancing amplitude threshold corresponding to the wire to be detected according to the sag.

[0045] The sag of a wire refers to the droop distance of a wire between two supporting points due to its own gravity. The magnitude of the sag depends on factors such as the length, tension, mass and ambient temperature of the wire. The difference in the sag of a wire will affect the amplitude of the wire when it is dancing. Generally, when the sag of a wire is small, the amplitude of the wire when it is dancing will be relatively small, and when the sag of a wire is large, the amplitude of the wire when it is dancing will be relatively large. Therefore, the threshold of the wire's dancing amplitude can be determined in combination with the sag of the wire.

[0046] In a preferred embodiment, for several wires with known dancing amplitude thresholds, their corresponding sags can be collected, and data fitting can be performed based on the sags and the corresponding dancing amplitude thresholds to determine the mapping relationship between the dancing amplitude threshold and the sag, and the mapping relationship can be characterized by the fitting function obtained after data fitting, and then the sag of the wire to be detected is substituted into the corresponding fitting function to determine the dancing amplitude threshold corresponding to the current wire to be detected. Schematically, the data fitting can be performed by the least squares method. It should be noted that in the data fitting process, the dancing amplitude threshold of the wire with a known dancing amplitude threshold can be obtained by experts after evaluation based on experience.

[0047] In an optional embodiment, in order to further improve the accuracy of the galloping amplitude threshold, the conductor galloping amplitude threshold may be determined in combination with the sag, diameter, mass, current wind speed and temperature of the conductor to be identified.

[0048] In a preferred embodiment, the step of identifying the sag of the wire to be detected includes:

[0049] Obtain the heights of the supporting points at both ends of the wire to be detected;

[0050] When it is determined that the two end support points are located on the same horizontal line according to their heights, the verticality of the wire to be detected is determined by the flat parabola method according to the weight per unit length, horizontal span and tension of the wire to be detected.

[0051] Specifically, the flat parabola method assumes that the drooping shape of the wire between the two support points is a parabola. This method is suitable for the case where the support points are at the same height.

[0052] The calculation formula of the flat parabola method is:

[0053] Among them, S is the sag of the wire to be tested, w is the weight per unit length of the wire to be tested, L is the horizontal span of the wire to be tested, and T is the tension of the wire to be tested.

[0054] In a preferred embodiment, the step of identifying the sag of the wire to be detected further includes:

[0055] When it is determined that the two end support points are not located on the same horizontal line according to their heights, the verticality of the wire to be tested is determined by the oblique parabola method according to the height difference between the two end support points, the horizontal span of the wire to be tested and the tension.

[0056] The oblique parabola method is applicable to the case where the two supporting points of the wire are not on the same horizontal line. This method takes into account the height difference of the supporting points.

[0057] The calculation formula of the oblique parabola method is:

[0058] Where h is the height difference between the two supporting points of the wire.

[0059] S3. When the vibration information includes the amplitudes of each detection point on the wire to be detected, the maximum amplitude of the amplitudes of each detection point is compared with the dancing amplitude threshold, and then when it is determined that the maximum amplitude is greater than the dancing amplitude threshold, an alarm is triggered and a first alarm information is generated.

[0060] Specifically, in the embodiment of the invention, a vibration sensing optical fiber is coupled to the conductor to be detected, and the amplitudes of multiple detection points on the conductor to be detected are obtained through the vibration sensing optical fiber. Then, the maximum amplitude is compared with the dancing amplitude threshold corresponding to the conductor to be detected. If the maximum amplitude is greater than the corresponding dancing amplitude threshold, it means that the dancing degree of the conductor to be detected has exceeded the range, and the first alarm information is generated at this time.

[0061] In a preferred embodiment, the first alarm information includes the maximum amplitude and the position of the detection point corresponding to the maximum amplitude.

[0062] In another embodiment of the present invention, the vibration information further includes the vibration frequency of the wire to be detected. In this case, the wire galloping detection method further includes:

[0063] Comparing the maximum amplitude among the amplitudes of each detection point with the dancing amplitude threshold, and comparing the vibration frequency with a preset dancing frequency threshold;

[0064] When it is determined that the vibration frequency is greater than the dancing frequency threshold, and the maximum amplitude is greater than the dancing amplitude threshold, an alarm is triggered and a second alarm message is generated.

[0065] Preferably, the second alarm information includes: vibration frequency, maximum amplitude and the position of the detection point corresponding to the maximum amplitude.

[0066] When the wire dances, it is usually accompanied by high-frequency vibration. Therefore, in this embodiment, the dancing condition of the wire is further determined in combination with the vibration frequency of the wire.

[0067] In a preferred embodiment, the wire dancing detection method further includes: at the end of each detection cycle, counting the number of times the alarm is triggered within the detection cycle, the maximum amplitude when the alarm is triggered each time, the detection point corresponding to the maximum amplitude when the alarm is triggered each time, and the number of times the alarm is triggered corresponding to each detection point, and generating an alarm analysis report.

[0068] The number of times the wire triggers the alarm within a preset detection cycle can allow wire maintenance personnel to understand the fatigue level of the wire. If the number of times the wire triggers the alarm within the detection cycle is large, it proves that the fatigue level of the wire is high and more attention needs to be paid to its repair.

[0069] By detecting the detection points on the conductor that trigger the alarm within the detection cycle, the number of times the detection points trigger the alarm, and the amplitude when the detection points trigger the alarm, the conductor maintenance personnel can know the detection points on the conductor to be detected that trigger the alarm the most times, so as to remind the maintenance personnel to conduct on-site inspection or maintenance at the location in time.

[0070] By implementing the above-mentioned embodiments of the present invention, the dancing amplitude threshold of the conductor can be determined according to the sag of the conductor, so that the dancing amplitude threshold can be more targeted and more in line with the actual dancing of the conductor; and then, by comparing the real-time amplitude of the conductor with the dancing amplitude threshold of the conductor, and comparing the real-time vibration frequency of the conductor with the dancing frequency threshold of the conductor, the dancing of the conductor can be monitored, and the monitoring is more accurate and effective.

[0071] Based on the above method embodiment, the present invention provides a corresponding device embodiment.

[0072] like Figure 2 As shown, an embodiment of the present invention provides a wire dancing detection device, comprising:

[0073] A vibration information extraction module, a dancing threshold determination module and a first warning module;

[0074] A vibration information extraction module is used to obtain vibration information of the wire to be detected;

[0075] A dancing threshold determination module, used to identify the sag of the wire to be detected, and determine the dancing amplitude threshold corresponding to the wire to be detected according to the sag;

[0076] The first early warning module, when the vibration information includes the amplitudes of each detection point on the wire to be detected, compares the maximum amplitude of the amplitudes of each detection point with the dancing amplitude threshold, and then triggers an alarm and generates a first alarm information when it is determined that the maximum amplitude is greater than the dancing amplitude threshold.

[0077] It should be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the accompanying drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art may understand and implement it without paying any creative effort.

[0078] Those skilled in the art can clearly understand that for the sake of convenience and brevity, the specific working process of the device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0079] Another preferred embodiment of the present invention provides a terminal device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, a wire dancing detection method as described in any one of the above embodiments is implemented.

[0080] The terminal device may be a computing device such as a desktop computer, a notebook, a PDA, a cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0081] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the terminal device, and uses various interfaces and lines to connect various parts of the entire terminal device.

[0082] The memory can be used to store the computer program, and the processor realizes various functions of the terminal device by running or executing the computer program stored in the memory and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required for a function, etc.; the data storage area can store data created according to the use of the mobile phone, etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0083] Another preferred embodiment of the present invention provides a storage medium, which includes a stored computer program, wherein when the computer program is running, the device where the storage medium is located is controlled to execute a wire dancing detection method as described in any one of the above embodiments.

[0084] The storage medium is a computer-readable storage medium, and the computer program is stored in the computer-readable storage medium. When the computer program is executed by the processor, the steps of each of the above-mentioned method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium.

[0085] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A method for detecting wire galloping, characterized in that: include: Obtaining vibration information of the wire to be detected; Identifying the sag of the wire to be detected, and determining a galloping amplitude threshold corresponding to the wire to be detected according to the sag; In the case where the vibration information includes the amplitudes of each detection point on the wire to be detected, the maximum amplitude of the amplitudes of each detection point is compared with the dancing amplitude threshold, and then when it is determined that the maximum amplitude is greater than the dancing amplitude threshold, an alarm is triggered and a first alarm information is generated.

2. The wire dancing detection method according to claim 1, characterized in that: The step of identifying the sag of the wire to be detected comprises: Obtain the heights of the supporting points at both ends of the wire to be detected; When it is determined that the two end support points are located on the same horizontal line according to their heights, the verticality of the wire to be detected is determined by the flat parabola method according to the weight per unit length, horizontal span and tension of the wire to be detected.

3. The wire dancing detection method according to claim 2, characterized in that: The step of identifying the sag of the wire to be detected further includes: When it is determined that the two end support points are not located on the same horizontal line according to their heights, the verticality of the wire to be tested is determined by the oblique parabola method according to the height difference between the two end support points, the horizontal span of the wire to be tested and the tension.

4. The wire dancing detection method according to claim 3, characterized in that: In the case where the vibration information includes the vibration frequency of the wire to be detected and the amplitude of each detection point on the wire to be detected, the wire galloping detection method further includes: Comparing the maximum amplitude among the amplitudes of each detection point with the dancing amplitude threshold, and comparing the vibration frequency with a preset dancing frequency threshold; When it is determined that the vibration frequency is greater than the dancing frequency threshold, and the maximum amplitude is greater than the dancing amplitude threshold, an alarm is triggered and a second alarm message is generated.

5. The wire dancing detection method according to claim 4, characterized in that: In the case of generating the first alarm information, the first alarm information includes: the maximum amplitude and the position of the detection point corresponding to the maximum amplitude; In the case of generating the second alarm information, the second alarm information includes: the vibration frequency, the maximum amplitude and the position of the detection point corresponding to the maximum amplitude.

6. The wire dancing detection method according to claim 5, characterized in that: Also includes: At the end of each detection cycle, the number of alarms triggered within the detection cycle, the maximum amplitude when the alarm is triggered each time, the detection point corresponding to the maximum amplitude when the alarm is triggered each time, and the number of alarms triggered corresponding to each detection point are counted to generate an alarm analysis report.

7. The wire dancing detection method according to claim 6, characterized in that: A vibration sensing optical fiber is coupled to the conductor to be detected, and vibration information of the conductor is obtained through the vibration sensing optical fiber.

8. A wire dancing detection device, characterized in that: include: A vibration information extraction module, a dancing threshold determination module and a first warning module; A vibration information extraction module is used to obtain vibration information of the wire to be detected; A dancing threshold determination module, used to identify the sag of the wire to be detected, and determine the dancing amplitude threshold corresponding to the wire to be detected according to the sag; The first early warning module, when the vibration information includes the amplitudes of each detection point on the wire to be detected, compares the maximum amplitude of the amplitudes of each detection point with the dancing amplitude threshold, and then triggers an alarm and generates a first alarm information when it is determined that the maximum amplitude is greater than the dancing amplitude threshold.

9. A terminal device, characterized in that: The method comprises a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the wire galloping detection method according to any one of claims 1 to 7 when executing the computer program.

10. A storage medium, characterized in that: The storage medium includes a stored computer program, wherein when the computer program is executed, the device where the storage medium is located is controlled to execute the wire galloping detection method according to any one of claims 1 to 7.

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