A power transmission line aging monitoring method, device, equipment and medium

Abstract

This invention discloses a method, device, equipment, and medium for monitoring the aging of power transmission lines. A laser transceiver is installed on the tower, and the cable surface is coated with a coded coating. The laser transceiver is controlled to emit laser light along the cable's laying direction. The coded signal output by the laser transceiver in response to the reflected light from the cable is acquired. A reference coded signal for the cable corresponding to the current temperature is acquired. The reference coded signal is the coded signal output by the laser transceiver in response to the reflected light from the cable when the cable has not aged. The coded signal is compared with the reference coded signal. When the coded signal and the reference coded signal are inconsistent, it is determined that the cable has aged. The change in the sag point is used to determine whether the cable has aged. This method can accurately and quickly monitor cable aging, improving the accuracy and timeliness of cable aging monitoring.

Description

Technical Field

[0001] This invention relates to line aging monitoring technology, and more particularly to a method, device, equipment, and medium for monitoring the aging of power transmission lines. Background Technology

[0002] Cables undergo aging during operation due to the combined effects of factors such as electric fields, temperature, and moisture, including water treeing, electrical treeing, and thermoelectric aging. Cable aging can lead to accidents and pose a threat to the safe operation of the power grid. Therefore, the analysis and research on the aging of cross-linked polyethylene power cables and its testing methods have significant theoretical and practical value.

[0003] Traditional cable aging analysis typically involves monitoring and analyzing cable sections or visual inspection by line management personnel. By analyzing the aging of cable lines, timely maintenance or replacement can be carried out when the aging is severe, ensuring the stable operation of the line. However, the section analysis method is not suitable for cable lines that have already been laid and are being used for power transmission. Furthermore, the accuracy of manual visual inspection is relatively low, making it impossible to accurately measure the aging of the line and carry out timely line maintenance. Summary of the Invention

[0004] This invention provides a method, apparatus, equipment, and medium for monitoring the aging of power transmission lines, so as to improve the accuracy and timeliness of monitoring line aging.

[0005] In a first aspect, the present invention provides a method for monitoring the aging of transmission lines, wherein a laser transceiver is installed on the tower and the cable surface is coated with a coded coating, the method comprising:

[0006] Control the laser transceiver to emit laser light along the cable routing direction;

[0007] Acquire the encoded signal output by the laser transceiver in response to the reflected light from the cable;

[0008] Obtain the reference encoded signal of the cable corresponding to the current temperature. The reference encoded signal is the encoded signal output by the laser transceiver in response to the reflected light of the cable when the cable has not aged.

[0009] The encoded signal is compared with the reference encoded signal. If the encoded signal is inconsistent with the reference encoded signal, it is determined that the cable has aged.

[0010] Optionally, the cable surface is coated with a first reflective material and a second reflective material arranged according to a coding rule, the first reflective material and the second reflective material having different reflectance coefficients.

[0011] Optionally, the laser transceiver includes multiple laser emitting heads arranged vertically to acquire an encoded signal output by the laser transceiver in response to reflected light from the cable, including:

[0012] The encoded signal of the laser transceiver outputting light reflected from multiple reflective materials on the cable surface in response to the laser is obtained.

[0013] Optionally, methods for monitoring the aging of transmission lines also include:

[0014] Before controlling the laser transceiver to emit laser light along the cable routing direction, a reference encoding signal for the cable under each temperature condition is determined.

[0015] Optionally, methods for monitoring the aging of transmission lines also include:

[0016] After determining that the cable has aged, the laser transceiver is turned off and an aging alarm signal is sent to the maintenance personnel's terminal.

[0017] Optionally, methods for monitoring the aging of transmission lines also include:

[0018] When the encoded signal matches the reference encoded signal, it is determined that the cable has not aged.

[0019] Secondly, the present invention also provides a transmission line aging monitoring device, wherein a laser transceiver is installed on the tower and the cable surface is coated with a coded coating, the device comprising:

[0020] A laser emitting module is used to control the laser transceiver to emit laser light along the cable routing direction;

[0021] The encoded signal acquisition module is used to acquire the encoded signal output by the laser transceiver in response to the reflected light from the cable;

[0022] A reference signal acquisition module is used to acquire a reference coded signal of the cable corresponding to the current temperature. The reference coded signal is the coded signal output by the laser transceiver in response to the reflected light of the cable when the cable has not aged.

[0023] An aging determination module is used to compare the encoded signal with the reference encoded signal, and to determine that the cable has aged when the encoded signal is inconsistent with the reference encoded signal.

[0024] Thirdly, the present invention also provides an electronic device, comprising:

[0025] One or more processors;

[0026] Storage device for storing one or more programs;

[0027] When the one or more programs are executed by the one or more processors, the one or more processors implement the transmission line aging monitoring method provided in the first aspect of the present invention.

[0028] Fourthly, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the transmission line aging monitoring method provided in the first aspect of the present invention.

[0029] Fifthly, the present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the power transmission line aging monitoring method provided in the first aspect of the present invention.

[0030] The present invention provides a method for monitoring the aging of power transmission lines. A laser transceiver is installed on the tower, and the cable surface is coated with a coded coating. The laser transceiver is controlled to emit laser light along the cable's laying direction. The coded signal output by the laser transceiver in response to the reflected light from the cable is acquired. A reference coded signal for the cable corresponding to the current temperature is also acquired. The reference coded signal is the coded signal output by the laser transceiver in response to the reflected light from the cable when the cable has not aged. The coded signal is compared with the reference coded signal. If the coded signal and the reference coded signal are inconsistent, it is determined that the cable has aged. The change in the sag point is used to determine whether the cable has aged. This method can accurately and quickly monitor cable aging, improving the accuracy and timeliness of cable aging monitoring.

[0031] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A flowchart of a method for monitoring the aging of power transmission lines provided by the present invention;

[0034] Figure 2 A schematic diagram of a laser transceiver and coded coating provided by the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of a power transmission line aging monitoring device provided by the present invention;

[0036] Figure 4 This is a schematic diagram of the structure of an electronic device provided by the present invention.

[0037] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0040] Figure 1 This is a flowchart of a transmission line aging monitoring method provided by the present invention. This embodiment assesses the aging condition of the transmission line based on the sag change. This method can be executed by the transmission line aging monitoring device provided by the present invention. This device can be implemented in software and / or hardware, and is typically configured in electronic equipment, such as... Figure 1 As shown, the method for monitoring the aging of transmission lines includes the following steps:

[0041] S101, Control the laser transceiver to emit laser along the cable laying direction.

[0042] In this embodiment of the invention, a laser transceiver is installed on the tower, and the cable surface is coated with a coded coating. Figure 2 A schematic diagram of a laser transceiver and coded coating provided by the present invention is shown below. Figure 2As shown, a coded coating is sprayed on the cable sag point area. This coded coating comprises several interconnected coating areas, evenly distributed along the bottom outer perimeter of the cable. These areas are coated with a first reflective material and a second reflective material according to a coding rule. The first and second reflective materials have different reflectivity. A laser transceiver is mounted on the tower and includes multiple laser emitters arranged vertically. Each laser emitter can emit a laser beam.

[0043] When installing the laser transceiver, select the pole closest to the horizontal distance of the cable sag point as the installation pole. Install the multi-head laser generator horizontally at the same height as the cable sag point on the installation pole. The multiple laser emitters in the laser transceiver are arranged vertically. Adjust the axis of the laser emitter located in the middle of the laser transceiver to coincide with the horizontal line of the cable sag point, and ensure that the laser emitted by this laser emitter falls on the stationary cable sag point and the painting area. This completes the deployment of the laser transceiver.

[0044] S102. Obtain the encoded signal of the reflected light output by the laser transceiver in response to the cable.

[0045] In this embodiment of the invention, laser beams emitted from multiple laser emitters illuminate the cable surface. Each laser beam illuminates a corresponding coated area and is reflected by the reflective material of that coated area, forming reflected light. The reflected light from multiple coated areas is received by a laser transceiver, which converts the optical signal into an electrical signal and outputs an encoded signal. Because the reflective material in the coated areas is arranged according to encoding rules, if the transmission line ages, the sag point of the cable will change, causing a change in the encoded signal.

[0046] S103. Obtain the reference encoding signal of the cable corresponding to the current temperature.

[0047] In this embodiment of the invention, the ambient temperature of the cable to be monitored at the current moment is obtained, and the reference encoded signal of the cable corresponding to the current temperature is retrieved. The reference encoded signal is the encoded signal output by the laser transceiver in response to the reflected light from the cable when the cable has not aged.

[0048] In this embodiment of the invention, before applying the transmission line aging monitoring method of the present invention, a reference coding signal for the cable under each temperature condition is determined. For example, under each temperature condition, the cable is tested, and the coding signal output by the laser transceiver when the cable has not aged is obtained as the reference coding signal for the cable corresponding to that temperature.

[0049] S104. Compare the encoded signal with the reference encoded signal. If the encoded signal is inconsistent with the reference encoded signal, it is determined that the cable has aged.

[0050] In this embodiment of the invention, the encoded signal output by the laser transceiver is compared with a reference encoded signal. If the encoded signal is inconsistent with the reference encoded signal, it indicates that the sag point of the cable has changed, and the cable is determined to be aging. If the encoded signal is consistent with the reference encoded signal, it indicates that the sag point of the cable has not changed, and the cable is determined not to be aging.

[0051] In this embodiment of the invention, after determining that the cable has aged, the laser transceiver is turned off and an aging alarm signal is sent to the maintenance personnel's terminal.

[0052] The present invention provides a method for monitoring the aging of power transmission lines. A laser transceiver is installed on the tower, and the cable surface is coated with a coded coating. The laser transceiver is controlled to emit laser light along the cable's laying direction. The coded signal output by the laser transceiver in response to the reflected light from the cable is acquired. A reference coded signal for the cable corresponding to the current temperature is also acquired. The reference coded signal is the coded signal output by the laser transceiver in response to the reflected light from the cable when the cable has not aged. The coded signal is compared with the reference coded signal. If the coded signal and the reference coded signal are inconsistent, it is determined that the cable has aged. The change in the sag point is used to determine whether the cable has aged. This method can accurately and quickly monitor cable aging, improving the accuracy and timeliness of cable aging monitoring.

[0053] Figure 3 This is a schematic diagram of the structure of a power transmission line aging monitoring device provided by the present invention, as shown below. Figure 3 As shown, the tower is equipped with a laser transceiver, the cable surface is coated with a coded coating, and the power transmission line aging monitoring device includes:

[0054] Laser emitting module 201 is used to control the laser transceiver to emit laser along the cable laying direction;

[0055] The encoded signal acquisition module 202 is used to acquire the encoded signal output by the laser transceiver in response to the reflected light from the cable;

[0056] The reference signal acquisition module 203 is used to acquire the reference coded signal of the cable corresponding to the current temperature. The reference coded signal is the coded signal output by the laser transceiver in response to the reflected light of the cable when the cable has not aged.

[0057] The aging determination module 204 is used to compare the encoded signal with the reference encoded signal, and determine that the cable has aged when the encoded signal is inconsistent with the reference encoded signal.

[0058] In some embodiments of the present invention, the cable surface is coated with a first reflective material and a second reflective material arranged according to a coding rule, the first reflective material and the second reflective material having different reflectance coefficients.

[0059] In some embodiments of the present invention, the laser transceiver includes a plurality of laser emitting heads arranged vertically, and the encoded signal acquisition module 202 includes:

[0060] The encoded signal acquisition submodule is used to acquire the encoded signal of the light output by the laser transceiver in response to the light reflected by multiple reflective materials on the cable surface in contact with the laser.

[0061] In some embodiments of the present invention, the power transmission line aging monitoring device further includes:

[0062] The reference signal determination module is used to determine the reference coded signal of the cable under each temperature condition before controlling the laser transceiver to emit laser along the cable laying direction.

[0063] In some embodiments of the present invention, the power transmission line aging monitoring device further includes:

[0064] An alarm module is used to shut down the laser transceiver and send an aging alarm signal to the maintenance personnel's terminal after determining that the cable has aged.

[0065] In some embodiments of the present invention, the method for monitoring the aging of power transmission lines further includes:

[0066] The non-aging determination module is used to determine that the cable has not aged when the encoded signal is consistent with the reference encoded signal.

[0067] The aforementioned transmission line aging monitoring device can execute the transmission line aging monitoring method provided in the foregoing embodiments of the present invention, and has the corresponding functional modules and beneficial effects for executing the transmission line aging monitoring method.

[0068] Figure 4 This is a schematic diagram of an electronic device provided by the present invention. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (such as helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0069] like Figure 4 As shown, the electronic device includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded into the RAM 13 from storage unit 18. The RAM 13 can also store various programs and data required for the operation of the electronic device. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0070] Multiple components in the electronic device are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, optical disk, etc.; and a communication unit 19, such as a network card, modem, wireless transceiver, etc. The communication unit 19 allows the electronic device to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0071] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, central processing unit (CPU), graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as transmission line aging monitoring methods.

[0072] In some embodiments, the transmission line aging monitoring method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on an electronic device via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the transmission line aging monitoring method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the transmission line aging monitoring method by any other suitable means (e.g., by means of firmware).

[0073] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0074] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0075] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0076] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0077] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0078] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through a communication network. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0079] This invention also provides a computer program product, including a computer program that, when executed by a processor, implements the power transmission line aging monitoring method provided in any embodiment of this application.

[0080] In implementing the computer program product, computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof. Programming languages ​​include object-oriented programming languages ​​such as Java, Smalltalk, and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0081] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and no limitation is imposed herein.

[0082] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for monitoring the aging of transmission lines, characterized in that, The tower is equipped with a laser transceiver, and the cable surface is coated with a coded coating. The method includes: Control the laser transceiver to emit laser light along the cable routing direction; Acquire the encoded signal output by the laser transceiver in response to the reflected light from the cable; Obtain the reference encoded signal of the cable corresponding to the current temperature. The reference encoded signal is the encoded signal output by the laser transceiver in response to the reflected light of the cable when the cable has not aged. The encoded signal is compared with the reference encoded signal. If the encoded signal is inconsistent with the reference encoded signal, it is determined that the cable has aged. The method involves determining whether the cable has aged by observing changes in the sag point; the cable surface is coated with a first reflective material and a second reflective material arranged according to coding rules, and the first reflective material and the second reflective material have different reflectivity.

2. The method for monitoring the aging of transmission lines according to claim 1, characterized in that, The laser transceiver includes multiple laser emitting heads arranged vertically to acquire coded signals output by the laser transceiver in response to reflected light from the cable, including: The encoded signal of the laser transceiver outputting light reflected from multiple reflective materials on the cable surface in response to the laser is obtained.

3. The method for monitoring the aging of transmission lines according to claim 1, characterized in that, Also includes: Before controlling the laser transceiver to emit laser light along the cable routing direction, a reference encoding signal for the cable under each temperature condition is determined.

4. The method for monitoring the aging of transmission lines according to claim 1, characterized in that, Also includes: After determining that the cable has aged, the laser transceiver is turned off and an aging alarm signal is sent to the maintenance personnel's terminal.

5. The method for monitoring the aging of transmission lines according to claim 1, characterized in that, Also includes: When the encoded signal matches the reference encoded signal, it is determined that the cable has not aged.

6. A power transmission line aging monitoring device, characterized in that, The tower is equipped with a laser transceiver, and the cable surface is coated with a coded coating. The device includes: A laser emitting module is used to control the laser transceiver to emit laser light along the cable routing direction; The encoded signal acquisition module is used to acquire the encoded signal output by the laser transceiver in response to the reflected light from the cable; A reference signal acquisition module is used to acquire a reference coded signal of the cable corresponding to the current temperature. The reference coded signal is the coded signal output by the laser transceiver in response to the reflected light of the cable when the cable has not aged. An aging determination module is used to compare the encoded signal with the reference encoded signal, and to determine that the cable has aged when the encoded signal is inconsistent with the reference encoded signal. The method involves determining whether the cable has aged by observing changes in the sag point; the cable surface is coated with a first reflective material and a second reflective material arranged according to coding rules, and the first reflective material and the second reflective material have different reflectivity.

7. An electronic device, characterized in that, include: One or more processors; Storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the transmission line aging monitoring method as described in any one of claims 1-5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the transmission line aging monitoring method as described in any one of claims 1-5.

9. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the transmission line aging monitoring method as described in any one of claims 1-5.

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