Method and device for evaluating influence degree of deicing jump of optical fiber composite phase conductor

Abstract

The invention provides a method and device for evaluating the influence degree of deicing jump of an optical fiber composite overhead phase line, and relates to the technical field of power transmission line safety. The method comprises the following steps: acquiring line vibration information of an overhead transmission line according to optical path vibration information of an optical fiber composite overhead phase line, monitoring the line vibration information in sections, and determining a target section where the line has ice shedding jump; obtaining a dynamic strain response of the overhead transmission line and a target line vibration monitoring result corresponding to the target section by using phi-OTDR equipment; and according to the dynamic strain response and the target line vibration monitoring result, evaluating the deicing jump degree of the overhead transmission line, and obtaining an influence degree evaluation result of the deicing jump of the optical fiber composite overhead phase line. The device executes the method. According to the method and the device provided by the embodiment of the invention, the influence degree of the deicing jump of the optical fiber composite overhead phase line can be accurately evaluated.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission line safety, and in particular to a method and a device for evaluating the impact degree of ice shedding and jumping of an optical fiber composite overhead phase line. Background Art

[0002] De-icing jump refers to the phenomenon that occurs when ice-covered conductors are exposed to rising temperatures, natural wind or artificial vibration and impact, which causes the ice on the conductors to fall off unevenly or at different times, thereby causing violent vibration and jumping of the conductors. This jumping phenomenon is particularly obvious in transmission lines and is called de-icing jump of transmission lines. It may lead to short circuits, conductor failures, hardware failures, and even tower collapse, causing power outages and seriously affecting the safe operation of transmission lines. Therefore, the study of de-icing jump has important theoretical and engineering significance.

[0003] In order to better quantify the impact of de-icing jumping, it is necessary to evaluate the impact of de-icing jumping. However, the current evaluation method has poor multi-point detection capability and slow response speed to rapidly changing dynamic disturbance events, which makes the evaluation results unable to accurately reflect the impact of de-icing jumping, and thus unable to provide reasonable and accurate work guidance. Summary of the invention

[0004] In view of the problems in the prior art, an embodiment of the present invention provides a method and device for evaluating the impact degree of ice shedding jump of an optical fiber composite overhead phase line, which can at least partially solve the problems in the prior art.

[0005] On the one hand, the present invention provides a method for evaluating the impact degree of ice shedding jump of optical fiber composite overhead phase line, comprising:

[0006] According to the optical path vibration information of the optical fiber composite overhead phase line, the line vibration information of the overhead transmission line is obtained, the line vibration information is monitored in sections, and the target section where the line de-icing jump occurs is determined;

[0007] Using a Φ-OTDR device to obtain a dynamic strain response of the overhead power transmission line and a target line vibration monitoring result corresponding to the target section;

[0008] The degree of ice shedding jump of the overhead power transmission line is evaluated according to the dynamic strain response and the target line vibration monitoring result, and the impact degree evaluation result of ice shedding jump of optical fiber composite overhead phase line is obtained.

[0009] Wherein, obtaining line vibration information of the overhead power transmission line according to the optical path vibration information of the optical fiber composite overhead phase line includes:

[0010] The optical path vibration information is filtered and data analyzed to obtain the line vibration information.

[0011] The step of monitoring the vibration information of the line by sections to determine the target section where the line de-icing and jumping occurs includes:

[0012] The line vibration information is monitored section by section according to the sections pre-divided according to the gear pitch, and the section with a vibration frequency greater than a preset threshold value and a vibration amplitude greater than a preset threshold value is determined as the target section.

[0013] Wherein, using the Φ-OTDR device to obtain the target line vibration monitoring result corresponding to the target section includes:

[0014] The target section is monitored by using a Φ-OTDR device to obtain a target line vibration frequency and a target line vibration amplitude.

[0015] The deicing jump occurrence time and deicing jump duration corresponding to the target section are also obtained; accordingly, the impact degree assessment method of deicing jump of optical fiber composite overhead phase line also includes:

[0016] The impact assessment result, the de-icing jump occurrence time, the de-icing jump duration and the corresponding target section identifier are displayed.

[0017] Wherein, obtaining the optical path vibration information includes:

[0018] Data collection is performed on the optical path of the Φ-OTDR device to obtain vibration information of the optical path.

[0019] Wherein, the data collection on the optical path of the Φ-OTDR device includes:

[0020] The idle optical fiber in the communication optical fiber encapsulated inside the optical fiber composite overhead phase line is optically connected to the Φ-OTDR device to realize data collection on the optical path of the Φ-OTDR device.

[0021] On the one hand, the present invention provides a device for evaluating the impact degree of ice shedding jump of optical fiber composite overhead phase line, comprising:

[0022] A determination unit, configured to obtain line vibration information of the overhead power transmission line according to optical path vibration information of the optical fiber composite overhead phase line, monitor the line vibration information by section, and determine a target section where ice shedding and jumping occur in the line;

[0023] An acquisition unit, used for acquiring the dynamic strain response of the overhead power transmission line and the target line vibration monitoring result corresponding to the target section by using a Φ-OTDR device;

[0024] An evaluation unit is used to evaluate the de-icing jump degree of the overhead transmission line according to the dynamic strain response and the target line vibration monitoring result, and obtain an evaluation result of the impact degree of de-icing jump of the optical fiber composite overhead phase line.

[0025] In another aspect, an embodiment of the present invention provides an electronic device, including: a processor, a memory, and a bus, wherein:

[0026] The processor and the memory communicate with each other via the bus;

[0027] The memory stores program instructions that can be executed by the processor, and the processor calls the program instructions to execute the following method:

[0028] According to the optical path vibration information of the optical fiber composite overhead phase line, the line vibration information of the overhead transmission line is obtained, the line vibration information is monitored in sections, and the target section where the line de-icing jump occurs is determined;

[0029] Using a Φ-OTDR device to obtain a dynamic strain response of the overhead power transmission line and a target line vibration monitoring result corresponding to the target section;

[0030] The degree of ice shedding jump of the overhead power transmission line is evaluated according to the dynamic strain response and the target line vibration monitoring result, and the impact degree evaluation result of ice shedding jump of optical fiber composite overhead phase line is obtained.

[0031] An embodiment of the present invention provides a non-transitory computer-readable storage medium, including:

[0032] The non-transitory computer-readable storage medium stores computer instructions, which cause the computer to execute the following method:

[0033] According to the optical path vibration information of the optical fiber composite overhead phase line, the line vibration information of the overhead transmission line is obtained, the line vibration information is monitored in sections, and the target section where the line de-icing jump occurs is determined;

[0034] Using a Φ-OTDR device to obtain a dynamic strain response of the overhead power transmission line and a target line vibration monitoring result corresponding to the target section;

[0035] The degree of ice shedding jump of the overhead power transmission line is evaluated according to the dynamic strain response and the target line vibration monitoring result, and the impact degree evaluation result of ice shedding jump of optical fiber composite overhead phase line is obtained.

[0036] The method and device for evaluating the degree of influence of ice shedding and jumping of optical fiber composite overhead phase lines provided in the embodiments of the present invention obtain line vibration information of an overhead transmission line based on optical path vibration information of the optical fiber composite overhead phase line, monitor the line vibration information by sections, and determine the target section where ice shedding and jumping occur in the line; obtain the dynamic strain response of the overhead transmission line and the target line vibration monitoring result corresponding to the target section by using Φ-OTDR equipment; evaluate the degree of ice shedding and jumping of the overhead transmission line based on the dynamic strain response and the target line vibration monitoring result, and obtain the evaluation result of the degree of influence of ice shedding and jumping of optical fiber composite overhead phase lines, which can accurately evaluate the degree of influence of ice shedding and jumping of optical fiber composite overhead phase lines and is conducive to providing reasonable and accurate work guidance. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0038] Figure 1 It is a flow chart of a method for evaluating the impact degree of ice shedding jump of optical fiber composite overhead phase line provided by one embodiment of the present invention.

[0039] Figure 2 It is a schematic structural diagram of a device for evaluating the degree of impact of ice shedding jump of optical fiber composite overhead phase line provided by one embodiment of the present invention.

[0040] Figure 3 A schematic diagram of the physical structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily.

[0042] Figure 1 FIG. 1 is a flow chart of a method for evaluating the impact of ice shedding jump of an optical fiber composite overhead phase line provided by an embodiment of the present invention. Figure 1 As shown, the method for evaluating the impact degree of ice shedding jump of optical fiber composite overhead phase line provided by the embodiment of the present invention includes:

[0043] Step S1: acquiring line vibration information of the overhead power transmission line according to the optical path vibration information of the optical fiber composite overhead phase line, performing segment-by-segment monitoring on the line vibration information, and determining the target segment where the line de-icing jump occurs.

[0044] Step S2: using a Φ-OTDR device to obtain a dynamic strain response of the overhead power transmission line and a target line vibration monitoring result corresponding to the target section.

[0045] Step S3: evaluating the degree of ice shedding jump of the overhead power transmission line according to the dynamic strain response and the target line vibration monitoring result, and obtaining an evaluation result of the impact degree of ice shedding jump of the optical fiber composite overhead phase line.

[0046] In the above step S1, the device obtains the line vibration information of the overhead transmission line according to the optical path vibration information of the optical fiber composite overhead phase line, monitors the line vibration information in sections, and determines the target section where the line de-icing and jumping occur. The device can be a computer device that executes the method, etc. Through appropriate optical configuration, Φ-OTDR can measure vibration, strain or temperature distribution over a long distance (~km) at a high spatial resolution (~m). This capability makes Φ-OTDR widely used in different scenarios.

[0047] Acquiring the optical path vibration information includes:

[0048] Data collection is performed on the optical path of the Φ-OTDR device to obtain vibration information of the optical path.

[0049] The data collection on the optical path of the Φ-OTDR device includes:

[0050] The idle optical fiber in the communication optical fiber encapsulated inside the optical fiber composite overhead phase line is optically connected to the Φ-OTDR device to realize data collection on the optical path of the Φ-OTDR device.

[0051] In view of the unique structure of the optical fiber composite overhead phase line that has both power transmission and communication functions, the idle optical fiber in the communication optical fiber encapsulated inside the optical fiber composite overhead phase line is used to realize optical path connection with the Φ-OTDR equipment in the communication room. The optical path data of the Φ-OTDR equipment is collected and recorded to obtain the optical path vibration information of the optical fiber composite overhead phase line.

[0052] The method of obtaining line vibration information of the overhead power transmission line according to the optical path vibration information of the optical fiber composite overhead phase line comprises:

[0053] The optical path vibration information is filtered and data analyzed to obtain the line vibration information. The line vibration information may include line vibration frequency and line vibration amplitude.

[0054] The monitoring of the line vibration information by sections to determine the target section where the line de-icing jump occurs includes:

[0055] The line vibration information is monitored in sections according to the sections pre-divided according to the span, and the section with a value greater than a preset vibration frequency threshold and a value greater than a preset vibration amplitude threshold is determined as the target section. In the above data analysis process, the entire monitored line length can be divided according to the span to obtain each section, and then each section is monitored in sections. The monitoring content of the sections includes the line vibration frequency and the line vibration amplitude. The line vibration frequency is compared with the preset vibration frequency threshold, and the line vibration amplitude is compared with the preset vibration amplitude threshold. The preset vibration frequency threshold and the preset vibration amplitude threshold can be set independently according to actual conditions.

[0056] In the above step S2, the apparatus uses a Φ-OTDR device to obtain the dynamic strain response of the overhead transmission line and the target line vibration monitoring result corresponding to the target section. Using the Φ-OTDR device to obtain the target line vibration monitoring result corresponding to the target section includes:

[0057] The target section is monitored by using the Φ-OTDR device to obtain the target line vibration frequency and target line vibration amplitude. The high-precision vibration measurement data of the Φ-OTDR device is used to dynamically and accurately monitor each section to obtain the target line vibration frequency and target line vibration amplitude of the optical fiber composite overhead phase line, that is, each target section corresponds to a pair of target line vibration frequencies and target line vibration amplitudes.

[0058] In addition, the high sampling resolution of the Φ-OTDR device can also be used to obtain the high-precision dynamic strain response ε′ of the overhead transmission line.

[0059] In the above step S3, the device evaluates the de-icing jump degree of the overhead transmission line according to the dynamic strain response and the target line vibration monitoring result, and obtains the impact degree evaluation result of the de-icing jump of the optical fiber composite overhead phase line. The dynamic strain response ε′ can be a positive number or a negative number, and the absolute value of the dynamic strain response, i.e., |ε′|, can be used for evaluation and calculation. In order from severe to least severe, the impact degree evaluation results can be divided into three levels 1-3.

[0060] If at least two of the following three conditions are met, the impact assessment result is determined to be level 1; if any one of the following three conditions is met, the impact assessment result is determined to be level 2; if any one of the following three conditions is not met, the impact assessment result is determined to be level 3.

[0061] The three conditions are as follows:

[0062] |ε′| is greater than a preset dynamic strain response threshold, and the target line vibration frequency is greater than a preset vibration frequency threshold, and the target line vibration amplitude.

[0063] The deicing jump occurrence time and the deicing jump duration corresponding to the target section are also obtained; accordingly, the impact degree assessment method of the deicing jump of the optical fiber composite overhead phase line also includes:

[0064] The impact assessment result, the deicing jump occurrence time, the deicing jump duration and the corresponding target section identifier are displayed. The target section identifier is used to mark the target section, which can facilitate relevant staff to determine the impact assessment result, deicing jump occurrence time and deicing jump duration of a certain section by browsing the displayed content, and then take corresponding operation and maintenance measures.

[0065] The optical path vibration information includes the phase of the incident sensing optical fiber light and the internal stress of the optical fiber composite overhead phase line;

[0066] The phase of the light incident on the sensing optical fiber inside the optical fiber composite overhead phase line can be expressed as:

[0067]

[0068] Among them, β is the propagation coefficient of light;

[0069] λ is the wavelength of the incident light;

[0070] L is the distance the incident light propagates in the optical fiber;

[0071] The relationship between the internal stress and strain of the optical fiber composite overhead phase line is as follows:

[0072] σ=Eε

[0073] Wherein, σ is the internal stress of the optical fiber composite overhead phase line;

[0074] E is the Young’s modulus of the optical fiber composite overhead phase line;

[0075] ε is the internal strain of the optical fiber composite overhead phase line.

[0076] According to the dynamic strain response, the relationship between the strain optical constants P11 and P12 in the strain fiber matrix and the transverse stress σ1 and longitudinal stress σ2 of the optical fiber, as well as the relationship between stress and strain, combined with the influence of strain in two directions and the elastic-optical effect on the light phase change, the expression of the light phase change can be derived. The specific expression is conventional in this field and will not be repeated here.

[0077] The relationship between the photocurrent and optical phase change detected by the Φ-OTDR device can be expressed as follows:

[0078]

[0079] Where R is the backscattering coefficient of the sensing optical fiber;

[0080] R d is the detection responsivity;

[0081] is the magnitude of the DC component of the backscattered Rayleigh light;

[0082] Δω AOM is the frequency shift of the acousto-optic modulator inside the Φ-OTDR device;

[0083] t is the time required for the backscattered light to return to the photodetector;

[0084] is the phase change of light.

[0085] The method for evaluating the impact degree of ice shedding jump of optical fiber composite overhead phase line provided by the embodiment of the present invention has the following beneficial technical effects:

[0086] By monitoring the ice jump of optical fiber composite overhead phase lines based on Φ-OTDR technology, the idle optical fiber inside the optical fiber composite overhead phase line is utilized, which is convenient to distribute, and multi-point detection can be performed to obtain the vibration information of the overhead transmission line. The specific section of the line where the ice jump occurs is determined by regional monitoring. When ice jump occurs, the high sampling resolution of the Φ-OTDR equipment obtains the high-precision dynamic strain response of the line, which improves the sensitivity of the response and improves the monitoring efficiency. It is suitable for large-scale and long-distance multi-point detection, and provides timely guidance for the design and improvement of the anti-ice jump structure of the transmission line.

[0087] The method for evaluating the degree of influence of ice shedding and jumping of an optical fiber composite overhead phase line provided in an embodiment of the present invention obtains line vibration information of an overhead transmission line based on optical path vibration information of the optical fiber composite overhead phase line, monitors the line vibration information by sections, and determines a target section where ice shedding and jumping occur in the line; obtains the dynamic strain response of the overhead transmission line and a target line vibration monitoring result corresponding to the target section by using a Φ-OTDR device; evaluates the degree of ice shedding and jumping of the overhead transmission line based on the dynamic strain response and the target line vibration monitoring result, and obtains an evaluation result of the degree of influence of ice shedding and jumping of the optical fiber composite overhead phase line, which can accurately evaluate the degree of influence of ice shedding and jumping of the optical fiber composite overhead phase line, and is conducive to providing reasonable and accurate work guidance.

[0088] Furthermore, the step of obtaining line vibration information of the overhead power transmission line according to the optical path vibration information of the optical fiber composite overhead phase line includes:

[0089] The optical path vibration information is filtered and data analyzed to obtain the line vibration information. The above description can be made with reference to the above embodiment and will not be repeated here.

[0090] Furthermore, the monitoring of the line vibration information by sections to determine the target section where the line de-icing jump occurs includes:

[0091] The line vibration information is monitored in sections according to the sections pre-divided according to the gear pitch, and the section with a vibration frequency greater than a preset threshold and a vibration amplitude greater than a preset threshold is determined as the target section. The above embodiment can be referred to for explanation and will not be repeated here.

[0092] Further, using a Φ-OTDR device to obtain a target line vibration monitoring result corresponding to the target section includes:

[0093] The target section is monitored by using a Φ-OTDR device to obtain a target line vibration frequency and a target line vibration amplitude.

[0094] Furthermore, the deicing jump occurrence time and deicing jump duration corresponding to the target section are also obtained; accordingly, the impact degree assessment method of deicing jump of optical fiber composite overhead phase line also includes:

[0095] The impact assessment result, the deicing jump occurrence time, the deicing jump duration and the corresponding target section identifier are displayed. The above-mentioned embodiments can be referred to for explanation and will not be described in detail.

[0096] Further, obtaining the optical path vibration information includes:

[0097] Data collection is performed on the optical path of the Φ-OTDR device to obtain the optical path vibration information. The above-mentioned embodiments can be referred to for explanation and will not be described in detail.

[0098] Furthermore, the data collection on the optical path of the Φ-OTDR device includes:

[0099] The idle optical fiber in the communication optical fiber encapsulated inside the optical fiber composite overhead phase line is optically connected to the Φ-OTDR device to realize data collection on the optical path of the Φ-OTDR device.

[0100] Figure 2 FIG. 1 is a schematic diagram of a device for evaluating the degree of impact of de-icing jump of an optical fiber composite overhead phase line provided by an embodiment of the present invention. Figure 2As shown, the device for evaluating the impact degree of ice shedding jump of optical fiber composite overhead phase line provided by the embodiment of the present invention includes a determination unit 201, an acquisition unit 202 and an evaluation unit 203, wherein:

[0101] The determination unit 201 is used to obtain the line vibration information of the overhead transmission line according to the optical path vibration information of the optical fiber composite overhead phase line, monitor the line vibration information by sections, and determine the target section where the line de-icing and jumping occur; the acquisition unit 202 is used to obtain the dynamic strain response of the overhead transmission line and the target line vibration monitoring result corresponding to the target section by using the Φ-OTDR equipment; the evaluation unit 203 is used to evaluate the degree of de-icing and jumping of the overhead transmission line according to the dynamic strain response and the target line vibration monitoring result, and obtain the evaluation result of the impact degree of de-icing and jumping of the optical fiber composite overhead phase line.

[0102] Specifically, the determination unit 201 in the device is used to obtain the line vibration information of the overhead transmission line according to the optical path vibration information of the optical fiber composite overhead phase line, monitor the line vibration information in sections, and determine the target section where the line de-icing and jumping occur; the acquisition unit 202 is used to use the Φ-OTDR device to obtain the dynamic strain response of the overhead transmission line and the target line vibration monitoring result corresponding to the target section; the evaluation unit 203 is used to evaluate the degree of de-icing and jumping of the overhead transmission line according to the dynamic strain response and the target line vibration monitoring result, and obtain the evaluation result of the impact degree of de-icing and jumping of the optical fiber composite overhead phase line.

[0103] The device for evaluating the degree of impact of ice shedding and jumping of an optical fiber composite overhead phase line provided in an embodiment of the present invention obtains line vibration information of an overhead transmission line based on optical path vibration information of the optical fiber composite overhead phase line, monitors the line vibration information by sections, and determines a target section where ice shedding and jumping occur in the line; obtains the dynamic strain response of the overhead transmission line and a target line vibration monitoring result corresponding to the target section by using a Φ-OTDR device; evaluates the degree of ice shedding and jumping of the overhead transmission line based on the dynamic strain response and the target line vibration monitoring result, and obtains an evaluation result of the degree of impact of ice shedding and jumping of the optical fiber composite overhead phase line, which can accurately evaluate the degree of impact of ice shedding and jumping of the optical fiber composite overhead phase line, and is conducive to providing reasonable and accurate work guidance.

[0104] The embodiment of the present invention provides an embodiment of an apparatus for evaluating the degree of impact of ice shedding jumps on optical fiber composite overhead phase lines, which can be specifically used to execute the processing flow of the above-mentioned method embodiments. Its functions are not repeated here, and reference can be made to the detailed description of the above-mentioned method embodiments.

[0105] Figure 3 A schematic diagram of the physical structure of an electronic device provided by an embodiment of the present invention, such as Figure 3 As shown, the electronic device includes: a processor (processor) 301, a memory (memory) 302 and a bus 303;

[0106] The processor 301 and the memory 302 communicate with each other via a bus 303;

[0107] The processor 301 is used to call the program instructions in the memory 302 to execute the methods provided by the above method embodiments, for example, including:

[0108] According to the optical path vibration information of the optical fiber composite overhead phase line, the line vibration information of the overhead transmission line is obtained, the line vibration information is monitored in sections, and the target section where the line de-icing jump occurs is determined;

[0109] Using a Φ-OTDR device to obtain a dynamic strain response of the overhead power transmission line and a target line vibration monitoring result corresponding to the target section;

[0110] The degree of ice shedding jump of the overhead power transmission line is evaluated according to the dynamic strain response and the target line vibration monitoring result, and the impact degree evaluation result of ice shedding jump of optical fiber composite overhead phase line is obtained.

[0111] This embodiment discloses a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer can perform the methods provided by the above method embodiments, for example, including:

[0112] According to the optical path vibration information of the optical fiber composite overhead phase line, the line vibration information of the overhead transmission line is obtained, the line vibration information is monitored in sections, and the target section where the line de-icing jump occurs is determined;

[0113] Using a Φ-OTDR device to obtain a dynamic strain response of the overhead power transmission line and a target line vibration monitoring result corresponding to the target section;

[0114] The degree of ice shedding jump of the overhead power transmission line is evaluated according to the dynamic strain response and the target line vibration monitoring result, and the impact degree evaluation result of ice shedding jump of optical fiber composite overhead phase line is obtained.

[0115] This embodiment provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program enables the computer to execute the methods provided by the above method embodiments, for example, including:

[0116] According to the optical path vibration information of the optical fiber composite overhead phase line, the line vibration information of the overhead transmission line is obtained, the line vibration information is monitored in sections, and the target section where the line de-icing jump occurs is determined;

[0117] Using a Φ-OTDR device to obtain a dynamic strain response of the overhead power transmission line and a target line vibration monitoring result corresponding to the target section;

[0118] The degree of ice shedding jump of the overhead power transmission line is evaluated according to the dynamic strain response and the target line vibration monitoring result, and the impact degree evaluation result of ice shedding jump of optical fiber composite overhead phase line is obtained.

[0119] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0120] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks 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 processes 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.

[0121] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate 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 A function specified in one or more boxes.

[0122] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0123] In the description of this specification, the description with reference to the terms "one embodiment", "a specific embodiment", "some embodiments", "for example", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0124] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for evaluating the impact of ice shedding jump on optical fiber composite overhead phase line, characterized in that: include: According to the optical path vibration information of the optical fiber composite overhead phase line, the line vibration information of the overhead transmission line is obtained, the line vibration information is monitored in sections, and the target section where the line de-icing jump occurs is determined; Using a Φ-OTDR device to obtain a dynamic strain response of the overhead power transmission line and a target line vibration monitoring result corresponding to the target section; The degree of ice shedding jump of the overhead power transmission line is evaluated according to the dynamic strain response and the target line vibration monitoring result, and the impact degree evaluation result of ice shedding jump of optical fiber composite overhead phase line is obtained.

2. The method for evaluating the impact degree of ice shedding jump of optical fiber composite overhead phase line according to claim 1 is characterized in that: The method of obtaining line vibration information of the overhead power transmission line according to the optical path vibration information of the optical fiber composite overhead phase line comprises: The optical path vibration information is filtered and data analyzed to obtain the line vibration information.

3. The method for evaluating the impact degree of ice shedding jump of optical fiber composite overhead phase line according to claim 1 is characterized in that: The monitoring of the line vibration information by sections to determine the target section where the line de-icing jump occurs includes: The line vibration information is monitored section by section according to the sections pre-divided according to the gear pitch, and the section with a vibration frequency greater than a preset threshold value and a vibration amplitude greater than a preset threshold value is determined as the target section.

4. The method for evaluating the impact degree of ice shedding jump of optical fiber composite overhead phase line according to claim 1 is characterized in that: The Φ-OTDR device is used to obtain the target line vibration monitoring result corresponding to the target section, including: The target section is monitored by using a Φ-OTDR device to obtain a target line vibration frequency and a target line vibration amplitude.

5. The method for evaluating the impact of ice shedding jump of optical fiber composite overhead phase line according to claim 1 is characterized in that: The deicing jump occurrence time and the deicing jump duration corresponding to the target section are also obtained; accordingly, the impact degree assessment method of the deicing jump of the optical fiber composite overhead phase line also includes: The impact assessment result, the de-icing jump occurrence time, the de-icing jump duration and the corresponding target section identifier are displayed.

6. The method for evaluating the impact of ice shedding jump of optical fiber composite overhead phase line according to any one of claims 1 to 5, characterized in that: Acquiring the optical path vibration information includes: Data collection is performed on the optical path of the Φ-OTDR device to obtain vibration information of the optical path.

7. The method for evaluating the impact of ice shedding jump of optical fiber composite overhead phase line according to claim 6 is characterized in that: The data collection on the optical path of the Φ-OTDR device includes: The idle optical fiber in the communication optical fiber encapsulated inside the optical fiber composite overhead phase line is optically connected to the Φ-OTDR device to realize data collection on the optical path of the Φ-OTDR device.

8. A device for evaluating the impact of ice shedding and jumping of optical fiber composite overhead phase line, characterized in that: include: A determination unit, configured to obtain line vibration information of the overhead power transmission line according to optical path vibration information of the optical fiber composite overhead phase line, monitor the line vibration information by section, and determine a target section where ice shedding and jumping occur in the line; An acquisition unit, used for acquiring the dynamic strain response of the overhead power transmission line and the target line vibration monitoring result corresponding to the target section by using a Φ-OTDR device; An evaluation unit is used to evaluate the de-icing jump degree of the overhead transmission line according to the dynamic strain response and the target line vibration monitoring result, and obtain an evaluation result of the impact degree of de-icing jump of the optical fiber composite overhead phase line.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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