A method for analyzing the load-bearing status of power distribution communication optical cables

Abstract

This invention belongs to the technical field of optical fiber cable load-bearing status analysis, specifically disclosing a method for analyzing the load-bearing status of power distribution optical fiber cables. This method includes: extracting structural load-bearing related data corresponding to the target overhead optical fiber cable and analyzing the structural load-bearing stability assessment index; extracting service load-bearing related data corresponding to the target overhead optical fiber cable and analyzing the service load-bearing stability assessment index; providing feedback when the structural load-bearing stability assessment index or the service load-bearing stability assessment index corresponding to the target overhead optical fiber cable is greater than or equal to a set value, and issuing an early warning otherwise. This invention achieves dual-level load-bearing assessment of the target overhead optical fiber cable's structure and services, solving the limitations of current single-dimensional analysis, expanding the analytical coverage of the load-bearing status of power distribution optical fiber cables, thereby improving the rationality of the load-bearing status analysis of power distribution optical fiber cables, and also promoting the detection efficiency of abnormal load-bearing status of power distribution optical fiber cables.

Description

Technical Field

[0001] This invention belongs to the field of communication optical cable load-bearing status analysis technology, and relates to a method for analyzing the load-bearing status of power distribution communication optical cables. Background Technology

[0002] Optical fiber optic cables for power distribution are the foundation of power communication networks. With the construction of smart grids, these cables are becoming increasingly longer and carrying more and more services. Given these new circumstances and tasks, it is necessary to analyze the load-bearing status of these optical fiber cables to ensure the security of power communication.

[0003] Current analyses of the carrying capacity of power distribution and communication optical cables are mainly used to assess their service carrying capacity, i.e., to analyze carrying capacity from the network operation level. Obviously, the current analysis of the carrying capacity of power distribution and communication optical cables still has the following problems: First, the structural state of the power distribution and communication optical cables themselves directly interferes with their normal service carrying capacity. The current analysis based solely on the service level has certain limitations, resulting in insufficient reliability and accuracy of the analysis results of the carrying capacity of communication optical cables.

[0004] Second, current business-level analysis focuses on conventional aspects such as voltage, transmission network, and channel mode, without further analysis of the transmission interleaving and complexity of the network transmission area corresponding to power distribution communication optical cables, resulting in insufficient analysis of the carrying status of power distribution communication optical cables.

[0005] Third, the current single-dimensional load-bearing status analysis cannot improve the coverage of the load-bearing status analysis of power distribution and communication optical cables, thus making the analysis of the load-bearing status of power distribution and communication optical cables insufficiently reasonable, failing to improve the detection efficiency of abnormal load-bearing status of power distribution and communication optical cables, and thus failing to reduce the load-bearing safety hazards of power distribution and communication optical cables. Summary of the Invention

[0006] In view of this, in order to solve the problems mentioned in the background technology, a method for analyzing the carrying status of power distribution communication optical cables is proposed.

[0007] The objective of this invention can be achieved through the following technical solution: This invention provides a method for analyzing the load-bearing status of power distribution communication optical cables, the method comprising: Step 1, extracting relevant data on the load-bearing capacity of the optical cable.

[0008] Step 11: Extract the structural layer bearing data corresponding to the target overhead optical cable.

[0009] Step 12: Extract the relevant data of the service layer carrier corresponding to the target overhead optical cable.

[0010] Step 2: Analyze the optical cable carrying data. If the analyzed data is less than the set value, proceed to Step 3; otherwise, proceed to Step 4.

[0011] Step 21, Fiber Optic Cable Structural Load-Bearing Status Analysis: Analyze the structural load-bearing stability assessment index λ corresponding to the target overhead fiber optic cable. 结 When λ 结 <λ′ 结 If the condition is met, proceed to step 3; otherwise, proceed to step 4.

[0012] Step 22, Optical Cable Service-Level Bearing Status Analysis: Analyze the service-bearing stability assessment index λ corresponding to the target overhead optical cable. 业 When λ 业 <λ′ 业 If the condition is met, proceed to step 3; otherwise, proceed to step 4.

[0013] Step 3, Fiber Optic Cable Bearing Status Early Warning: Conduct early warning of the bearing status of both the fiber optic cable structure and the fiber optic cable service bearing layer.

[0014] Step 4, Optical Cable Load-Bearing Status Feedback: Feedback on the structural load-bearing stability assessment index and service load-bearing stability assessment index corresponding to the target overhead optical cable.

[0015] In a preferred embodiment of the present invention, the structural layer carries relevant data including foundation laying data, laying environment data, and operation status monitoring data.

[0016] The basic laying data includes the laying period, as well as the laying height, laying support spacing, and laying model of each optical cable.

[0017] The environmental data for cable laying includes meteorological and non-meteorological information. Meteorological information includes the average number of winds per year, the average number of snowfalls per year, the average snowfall amount per year, the average maximum wind speed per year, and the average minimum wind speed per year. Non-meteorological information includes the density and frequency of bird stopovers for each fiber optic cable laid.

[0018] The operational status monitoring data includes stress data and appearance data. The stress data includes the axial tension values ​​at both ends of each laid optical cable, while the appearance data includes the number of protective sleeve damage points, the thickness of the protective sleeve, and the curvature of each laid optical cable at each monitoring time.

[0019] The business layer carries relevant data including the number of personnel in the optical cable carrying area, the number of transmission lines, the number of cross-transmission lines corresponding to the optical cable carrying area, the number of carrying communication nodes, and the transmission capacity set for each carrying communication node.

[0020] In a preferred embodiment of the present invention, the structural load-bearing stability assessment index corresponding to the target overhead optical cable is specifically analyzed as follows: based on the operating status monitoring data, the tensile load-bearing compliance index γ1 and the apparent load-bearing compliance index γ2 corresponding to the target overhead optical cable are analyzed.

[0021] γ1 and γ2 are imported into the formula to calculate the structural load-bearing stability assessment index λ corresponding to the target overhead optical cable. 结 .

[0022]

[0023] Where a1 and a2 are the set tensile force and apparent structural load-bearing ratio weights, respectively. Here is the set structural load-bearing capacity assessment correction factor, where e is a natural constant.

[0024] In a preferred embodiment of the present invention, the tensile bearing capacity of the target overhead optical cable is analyzed according to an index. The specific analysis process is as follows: extract the axial tensile force values ​​at both ends of each laid optical cable from the operational status monitoring data, and record the axial tensile force values ​​at both ends of each laid optical cable as N. 左 i and N 右 i , i represents the fiber optic cable number, i = 1, 2, ..., n.

[0025] Based on the aforementioned basic laying data and laying environment data, the safe bearing axial tensile force values ​​at both ends of each laid optical cable are set, and are denoted as follows: and

[0026] Calculate the tensile load bearing capacity index γ1 corresponding to the target overhead optical cable.

[0027]

[0028] Wherein, ΔN is the set safe tensile strength deviation of the optical cable, n is the number of optical cables laid, and b1 and b2 are the set weighting factors for the tensile strength assessment ratio corresponding to the tensile strength deviations at the left and right ends of the optical cable, respectively. To set the tensile load correction factor.

[0029] In a preferred embodiment of the present invention, the specific process for setting the axial tensile force value at both ends of each laid optical cable is as follows: setting the tensile force correction factor ε corresponding to each laid optical cable. i .

[0030] Set the optical cable carrying environment interference factor η for each laid optical cable. i .

[0031] Extract the axial tensile force N at the left end of the target overhead optical cable from the database. 安 Calculate the axial tensile force value of the left end for each laid optical cable. Where N0 and N1 are the reference floating tension values ​​corresponding to the set laying size level and laying environment level, respectively.

[0032] Similarly, the axial tensile force value of the right end of each laid optical cable is calculated using the same method as the calculation of the axial tensile force value of the left end of each laid optical cable.

[0033] In a preferred embodiment of the present invention, the process of setting the bearing tensile strength correction factor corresponding to each laid optical cable is as follows: extract the laying model corresponding to each laid optical cable from the basic laying data, thereby locating the weight (g) per unit laying distance of each laid optical cable from the database. i .

[0034] Extract the laying age Y and the laying height h corresponding to each laid optical cable from the basic laying data. i and the support spacing Δx for fiber optic cable laying i .

[0035] Calculate the axial tensile force variability assessment index β for each laid optical cable. i ,

[0036] Where μ represents the tensile variability assessment correction factor, b3, b4, and b5 represent the weight factors of the axial tensile variability assessment corresponding to the set weight, spacing, and height, respectively, and G′, Δx′, and h′ represent the reference optical cable weight, optical cable laying support spacing, and optical cable laying height corresponding to the set benchmark axial tensile variability assessment index, respectively.

[0037] Extract the rated service life Y corresponding to the overhead optical cable from the database. 额 .

[0038] β i Laying years Y and rated service life Y 额 Import the formula to calculate the bearing tensile force correction factor ε for each laid optical cable. i ,

[0039] Where β′ and ε0 are the set benchmark axial tensile force variability assessment index and the reference bearing tensile force correction factor corresponding to the benchmark axial tensile force variability assessment index, respectively; y0 is the set reference loss service life corresponding to the unit axial tensile force assessment index difference; ΔY is the set reference service life deviation; and σ is the set service life deviation correction factor.

[0040] In a preferred embodiment of the present invention, the process of setting the optical cable carrying environment interference factor corresponding to each laid optical cable is as follows: extract the annual average number of winds, annual average number of snowfalls, annual average snowfall amount, annual average maximum wind speed and annual average minimum wind speed from the laying environment data, and calculate the meteorological environmental carrying capacity difference index δ1.

[0041] Extract the bird density m corresponding to each laid optical cable from the laying environment data. 停 i and bird dwelling frequency p 停 i Calculate the environmental carrying capacity difference index δ2 at the non-meteorological level for each laid optical cable. i ,

[0042] Where m′ and p′ represent the bird dwelling density and bird dwelling frequency under normal load conditions of the optical cable, respectively. The weights for the non-meteorological level environmental carrying capacity difference assessment are defined as follows: z1 and z2 represent the weight factors for the non-meteorological level assessment corresponding to the bird dwelling density and bird dwelling frequency, respectively.

[0043] Calculate the optical cable carrying environment interference factor η for each laid optical cable. i ,

[0044] Where w1 and w2 are the weighting factors for the proportion of optical cable carrying capacity interference assessment corresponding to the meteorological and non-meteorological carrying capacity differences, respectively; τ is the set environmental carrying capacity difference assessment correction factor; and δ1′ and δ2′ are the set meteorological and non-meteorological level corresponding to the environmental carrying capacity difference index, respectively.

[0045] In a preferred embodiment of the present invention, the specific calculation process of the apparent load-bearing compliance index corresponding to the target overhead optical cable is as follows: extract the number of protective sleeve damage points, protective sleeve thickness, and curvature of each laid optical cable at each monitoring time from the apparent data, and statistically analyze the compliance degree (PF) of the protective sleeve damage change corresponding to each laid optical cable. i HF compliance with protective sleeve thickness variation i The degree of agreement between the curve and the change QF i .

[0046] PF i HF i QF i Import the formula to calculate the apparent load-bearing capacity conformity index γ2 corresponding to the target overhead optical cable.

[0047] Where u1, u2, and u3 are the weighting factors for the apparent load conformity assessment ratio of the set changes in protective sleeve, protective sleeve thickness, and protective sleeve curve, respectively, min(PF) i ), min(HF) i ), min(QF i) represents the minimum value among the compliance of protective sleeve damage variation, protective sleeve thickness variation, and curve variation for each laid optical cable. PF′, HF′, and QF′ are the reference compliance of protective sleeve damage variation, protective sleeve thickness variation, and curve variation, respectively. ζ is the set optical cable apparent load compliance assessment correction factor.

[0048] In a preferred embodiment of the present invention, the specific calculation formula for the degree of conformity of the damage variation of the protective sleeve corresponding to each laid optical cable is as follows:

[0049] Where ΔM′ is the difference in the number of newly added protective sleeves damaged according to the set reference allowance, p is the number of monitoring times, and M is the number of monitoring times. i t+1 -M it Let t be the difference between the number of damaged protective sleeves of the i-th laid optical cable at the (t+1)-th monitoring and at the t-th monitoring, where t is the monitoring sequence number, t = 1, 2, ..., p.

[0050] In a preferred embodiment of the present invention, the specific analysis process of the service carrying stability assessment index corresponding to the target overhead optical cable is as follows: extract the service layer carrying-related data corresponding to the target overhead optical cable, and statistically analyze the service carrying complexity FZ and service carrying interleaving degree JC corresponding to the target overhead cable.

[0051] Calculate the service carrying stability assessment index λ corresponding to the target overhead optical cable. 业 ,

[0052] Where f1 and f2 are the weights of the service layer bearer stability assessment corresponding to the set service transmission interleaving degree and service transmission bearer compliance degree, respectively; JC′ and FZ′ are the set reference service bearer interleaving degree and service bearer complexity, respectively; and ξ is the set service layer bearer stability assessment correction factor.

[0053] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention realizes the dual-level load assessment of the target overhead optical cable at the structural level and the service level by conducting structural load stability assessment and service level load stability assessment, effectively solving the limitation problem of the current single-dimensional analysis, expanding the analysis coverage of the load status of power distribution and communication optical cables, improving the rationality of the load status analysis of power distribution and communication optical cables, and promoting the detection efficiency of abnormal load status of power distribution and communication optical cables, thereby effectively reducing the load safety hazards of power distribution and communication optical cables.

[0054] (2) This invention conducts structural load-bearing stability assessment and analysis of the target overhead optical cable from both tensile and apparent perspectives, which intuitively displays the current structural state of the optical cable. This improves the timeliness of the operation and maintenance personnel of the target overhead optical cable in handling its abnormal structural state, reduces the safety hazards of subsequent optical cable detachment, and improves the reliability and accuracy of the analysis results of the load-bearing state of the communication optical cable.

[0055] (3) This invention assesses the stability of the service layer of the target overhead optical cable by statistically analyzing the service carrying complexity and service carrying overlap, thus avoiding the drawback of not being able to further analyze the transmission overlap and complexity of the network transmission area corresponding to the power distribution communication optical cable, and enhancing the strength of the carrying status analysis of the power distribution communication optical cable. Attached Figure Description

[0056] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the 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.

[0057] Figure 1 This is a schematic diagram of the implementation steps of the method of the present invention.

[0058] Figure 2 This is a schematic diagram of the fiber optic cable structural load-bearing state analysis process of the present invention.

[0059] Figure 3 This is a schematic diagram of the optical cable service layer bearer status analysis process of the present invention.

[0060] Figure 4 This is a schematic diagram of the optical cable signal transmission direction of the present invention. Detailed Implementation

[0061] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0062] Please see Figures 1 to 3 As shown, the present invention provides a method for analyzing the load-bearing status of power distribution communication optical cables. The method includes: Step 1, extracting relevant data on the load-bearing capacity of the optical cable.

[0063] Step 11: Extract the structural layer bearing data corresponding to the target overhead optical cable.

[0064] Specifically, the structural layer carries relevant data including foundation laying data, laying environment data, and operational status monitoring data.

[0065] The basic laying data includes the laying period, as well as the laying height, laying support spacing, and laying model of each optical cable.

[0066] The environmental data for cable laying includes meteorological and non-meteorological information. Meteorological information includes the average number of winds per year, the average number of snowfalls per year, the average snowfall amount per year, the average maximum wind speed per year, and the average minimum wind speed per year. Non-meteorological information includes the density and frequency of bird stopovers for each fiber optic cable laid.

[0067] In one specific embodiment, bird dwelling density is determined by the formula... The calculations show that the maximum number of birds that can stay at the same time is monitored by cameras within the area where the target overhead optical cable is located.

[0068] In another specific embodiment, the frequency of bird stays is determined by the formula... The calculation shows that the highest single month refers to the month with the highest number of bird stay days. The number of bird stay days is the number of days that birds appear when the optical cable is laid, which is obtained by monitoring the area where the target overhead optical cable is located through cameras.

[0069] The operational status monitoring data includes stress data and appearance data. The stress data includes the axial tension values ​​at both ends of each laid optical cable, while the appearance data includes the number of protective sleeve damage points, the thickness of the protective sleeve, and the curvature of each laid optical cable at each monitoring time.

[0070] In one specific embodiment, the curved segment refers to the angle between the line connecting the lowest point of the optical cable and its two endpoints. The smaller the curvature, the easier it is to loosen. The number and thickness of the damaged parts of the protective sleeve are determined by the three-dimensional image acquisition of the optical cable by the camera mounted on the drone, and then the number and thickness of the damaged parts are located from the acquired image. The thickness refers to the average thickness of the optical cable.

[0071] Step 12: Extract the relevant data of the service layer carrier corresponding to the target overhead optical cable.

[0072] Specifically, the business layer carries relevant data including the number of personnel in the optical cable carrying area, the number of transmission lines, the number of cross-transmission lines corresponding to the optical cable carrying area, the number of carrying communication nodes, and the corresponding transmission capacity of each carrying communication node.

[0073] Step 2: Analyze the optical cable carrying data. If the analyzed data is less than the set value, proceed to Step 3; otherwise, proceed to Step 4.

[0074] Step 21, Fiber Optic Cable Structural Load-Bearing Status Analysis: Analyze the structural load-bearing stability assessment index λ corresponding to the target overhead fiber optic cable. 结 When λ 结 <λ′ 结 If the condition is met, proceed to step 3; otherwise, proceed to step 4.

[0075] Specifically, the structural load-bearing stability assessment index corresponding to the target overhead optical cable is analyzed as follows: F1. Based on the operational status monitoring data, analyze the tensile load-bearing compliance index γ1 and the apparent load-bearing compliance index γ2 corresponding to the target overhead optical cable.

[0076] For example, the specific analysis process of the tensile load bearing capacity index corresponding to the target overhead optical cable is as follows: S1, extract the axial tensile force values ​​at both ends of each laid optical cable from the current operating status monitoring data, take the transmission direction of the overhead optical cable signal as the right direction, and record the two ends of each laid optical cable as the left end and the right end respectively, thereby recording the axial tensile force values ​​at both ends of each laid optical cable as N. 左 i and N 右 i , i represents the fiber optic cable number, i = 1, 2, ..., n.

[0077] S2. Based on the aforementioned basic laying data and laying environment data, set the safe bearing axial tensile force values ​​at both ends of each laid optical cable, and record them as follows: and

[0078] Furthermore, the specific process for setting the axial tensile force value at both ends of each laid optical cable is as follows: A1. Set the tensile force correction factor ε corresponding to each laid optical cable. i .

[0079] Specifically, the process of setting the load-bearing tensile force correction factor for each laid optical cable is as follows: extract the basic laying data from the structural load-bearing related data, then extract the laying model corresponding to each laid optical cable, thereby locating the weight (g) per unit laying distance of each laid optical cable from the database. i .

[0080] The laying age Y and the laying height h of each optical cable are extracted from the relevant data at the structural level. i and the support spacing Δx for fiber optic cable laying i .

[0081] Calculate the axial tensile force variability assessment index β for each laid optical cable. i ,

[0082] Where μ represents the tensile variability assessment correction factor, b3, b4, and b5 represent the weight factors of the axial tensile variability assessment corresponding to the set weight, spacing, and height, respectively, and G′, Δx′, and h′ represent the reference optical cable weight, optical cable laying support spacing, and optical cable laying height corresponding to the set benchmark axial tensile variability assessment index, respectively.

[0083] Extract the rated service life Y corresponding to the overhead optical cable from the database. 额 .

[0084] β i Laying years Y and rated service life Y 额 Import the formula to calculate the bearing tensile force correction factor ε for each laid optical cable. i ,

[0085] Where β′ and ε0 are the set benchmark axial tensile force variability assessment index and the reference bearing tensile force correction factor corresponding to the benchmark axial tensile force variability assessment index, respectively; y0 is the set reference loss service life corresponding to the unit axial tensile force assessment index difference; ΔY is the set reference service life deviation; and σ is the set service life deviation correction factor.

[0086] A2. Set the optical cable carrying environment interference factor ηi for each laid optical cable.

[0087] Specifically, the process for setting the optical cable bearing environment interference factor corresponding to each laid optical cable is as follows: A2-1, extract the laying environment data from the structural bearing-related data, and then extract the annual average number of winds, annual average number of snowfalls, annual average snowfall, annual average maximum wind speed and annual average minimum wind speed, and calculate the meteorological environmental bearing difference index δ1.

[0088] It should be noted that the specific calculation process for the meteorological environmental carrying capacity difference index is as follows: the annual average number of winds, annual average number of snowfalls, annual average snowfall amount, annual average maximum wind speed, and annual average minimum wind speed are respectively denoted as c. 风 c 雪 J 雪 、(v 风 ) max and (v) 风 ) min .

[0089] c 风 、(v 风 ) max 、(v 风 ) min Import the formula to calculate the wind-level environmental carrying capacity difference index φ1.

[0090] Where d1 and d2 are the weighting factors for the environmental carrying capacity differences at the wind level corresponding to the deviation in wind frequency and wind speed, respectively, and c′ 风 v′ 风 These are the reference load wind frequency and reference load wind speed under the set normal load conditions of the optical cable. k is the set correction factor for the environmental carrying capacity assessment at the wind level. 限 To set the reference wind speed extreme value ratio.

[0091] c 雪 J 雪 Import the formula to calculate the environmental carrying capacity difference index φ2 at the snowfall level.

[0092] Where d3 and d4 represent the weights of the environmental carrying capacity difference assessment corresponding to the number of snowfalls and the amount of snowfall, respectively, and c′ 雪 、J′ 雪 These represent the reference snowfall count and reference snowfall amount under the set normal load conditions of the optical cable, respectively. This is a correction factor for the environmental carrying capacity assessment of the snowfall layer.

[0093] Import φ1 and φ2 into the formula to calculate the meteorological environmental carrying capacity difference index δ1. Where x1 and x2 represent the weighting factors for the environmental carrying capacity difference assessment of the meteorological level corresponding to the wind level and snowfall level, respectively, and χ is the correction factor for the environmental carrying capacity difference assessment of the meteorological level.

[0094] A2-2. Extract the bird density m corresponding to each laid optical cable from the laying environment data. 停 i and bird dwelling frequency p 停 i Calculate the environmental carrying capacity difference index δ2 at the non-meteorological level for each laid optical cable. i ,

[0095] Where m′ and p′ represent the bird dwelling density and bird dwelling frequency under normal load conditions of the optical cable, respectively. The weights for the non-meteorological level environmental carrying capacity difference assessment are defined as follows: z1 and z2 represent the weight factors for the non-meteorological level assessment corresponding to the bird dwelling density and bird dwelling frequency, respectively.

[0096] A2-3. Calculate the optical cable carrying environment interference factor η for each laid optical cable. i ,

[0097] Where w1 and w2 are the weighting factors for the proportion of optical cable carrying capacity interference assessment corresponding to the meteorological and non-meteorological carrying capacity differences, respectively; τ is the set environmental carrying capacity difference assessment correction factor; and δ1′ and δ2′ are the set meteorological and non-meteorological level corresponding to the environmental carrying capacity difference index, respectively.

[0098] A3. Extract the axial tensile force value N of the left end of the target overhead optical cable from the database. 安 Calculate the axial tensile force value of the left end for each laid optical cable. N0 and N1 are the reference floating tension values ​​corresponding to the set laying size level and laying environment level, respectively.

[0099] A4. Similarly, the axial tensile force value of the right end of each laid optical cable is calculated using the same method as the calculation method for the axial tensile force value of the left end of each laid optical cable.

[0100] S3. Calculate the tensile load-bearing capacity index γ1 corresponding to the target overhead optical cable.

[0101] Wherein, ΔN is the set safe tensile strength deviation of the optical cable, n is the number of optical cables laid, and b1 and b2 are the set weighting factors for the tensile strength assessment ratio corresponding to the tensile strength deviations at the left and right ends of the optical cable, respectively. To set the tensile load correction factor.

[0102] Please see Figure 4 As shown in another example, the specific calculation process of the apparent load-bearing compliance index corresponding to the target overhead optical cable is as follows: extract the number of protective sleeve damage points, protective sleeve thickness, and curvature of each laid optical cable at each monitoring time from the apparent data, and statistically analyze the compliance degree PF of the protective sleeve damage change corresponding to each laid optical cable. i HF compliance with protective sleeve thickness variation i The degree of agreement between the curve and the change QF i .

[0103] Furthermore, the specific calculation formula for the compliance of the damage variation of the protective sleeves corresponding to each laid optical cable is as follows:

[0104] Where ΔM′ is the difference in the number of newly added protective sleeves damaged according to the set reference allowance, p is the number of monitoring times, and M is the number of monitoring times. i t+1 -M it Let t be the difference between the number of damaged protective sleeves of the i-th laid optical cable at the (t+1)-th monitoring and at the t-th monitoring, where t is the monitoring sequence number, t = 1, 2, ..., p.

[0105] Furthermore, the specific calculation formula for the compliance of the thickness variation of the protective sheath corresponding to each laid optical cable is as follows:

[0106] Where ΔH′ is the set reference allowable difference in the thickness of the newly added protective sleeve, H it -H i t+1 The difference in the thickness of the protective sheath for the i-th laid optical cable at the t-th monitoring time and at the t+1-th monitoring time.

[0107] Furthermore, the specific calculation formula for the compliance of the thickness variation of the protective sheath corresponding to each laid optical cable is as follows:

[0108] Where ΔQ′ is the set reference allowable difference in the thickness of the newly added protective sleeve, Q it -Q i t+1 The difference in optical cable curvature between the i-th laid optical cable at the t-th monitoring time and the (t+1)-th monitoring time.

[0109] PF i HF i QF i Import the formula to calculate the apparent load-bearing capacity conformity index γ2 corresponding to the target overhead optical cable.

[0110] Where u1, u2, and u3 are the weighting factors for the apparent load conformity assessment ratio of the set changes in protective sleeve, protective sleeve thickness, and protective sleeve curve, respectively, min(PF) i ), min(HF) i ), min(QF i ) represents the minimum value among the compliance of protective sleeve damage variation, protective sleeve thickness variation, and curve variation for each laid optical cable. PF′, HF′, and QF′ are the reference compliance of protective sleeve damage variation, protective sleeve thickness variation, and curve variation, respectively. ζ is the set optical cable apparent load compliance assessment correction factor.

[0111] F2. Import γ1 and γ2 into the formula to calculate the structural load-bearing stability assessment index λ corresponding to the target overhead optical cable. 结 ,

[0112] Where a1 and a2 are the set tensile force and apparent structural load-bearing ratio weights, respectively. Here is the set structural load-bearing capacity assessment correction factor, where e is a natural constant.

[0113] This invention provides a structural load-bearing stability assessment and analysis of the target overhead optical cable from both tensile and apparent perspectives. This intuitively displays the current structural state of the optical cable, thereby improving the timeliness of the operation and maintenance personnel's handling of abnormal structural states, reducing the safety hazards of subsequent cable detachment, and enhancing the reliability and accuracy of the load-bearing status analysis results of the communication optical cable.

[0114] Step 22, Optical Cable Service-Level Bearing Status Analysis: Analyze the service-bearing stability assessment index λ corresponding to the target overhead optical cable. 业 When λ 业 <λ′ 业 If the condition is met, proceed to step 3; otherwise, proceed to step 4.

[0115] Specifically, the analysis process of the service carrying stability assessment index corresponding to the target overhead optical cable is as follows: B1. Extract the service layer carrying data corresponding to the target overhead optical cable and count the service carrying complexity FZ and service carrying interleaving degree JC corresponding to the target overhead cable.

[0116] It should be noted that the specific statistical process for the service carrying complexity corresponding to the target overhead cable is as follows: extract the set transmission capacity corresponding to each carrying communication node from the relevant data of the service layer.

[0117] The set transmission capacity corresponding to each bearer communication node is compared, and the set transmission capacities with the same transmission capacity are taken as characteristic transmission capacities. The number M of characteristic transmission capacities is counted. 容 The number of communication nodes X corresponding to the transmission capacity of each feature r r represents the feature transmission capacity number, r = 1, 2, ..., l.

[0118] Extract the number of personnel R and the number of transmission lines in the optical cable carrying area from the relevant data at the business level. 线 .

[0119] Calculate the service carrying complexity FZ corresponding to the target overhead cable.

[0120] Where ψ represents the business carrying complexity condition factor,

[0121] Among them, M′ 容 ΔX, R′, M′ 线 These represent the number of reference characteristic transmission capacities under the set stable optical cable transmission state, the extreme difference of the communication nodes corresponding to different transmission capacities, the number of reference users, and the number of reference transmission lines, respectively, max(X r ), min(X) r) represent the maximum and minimum values ​​of the number of bearer communication nodes corresponding to each set characteristic transmission capacity, respectively. κ1, κ2, κ3, and κ4 represent the weighting factors of the proportion of service bearing complexity assessment corresponding to the set characteristic transmission capacity, the extreme difference of bearer communication nodes, the deviation of the number of users, and the deviation of the number of transmission lines, respectively.

[0122] It should also be noted that the specific calculation process for the service carrying crossover degree corresponding to the target overhead cable is as follows: extract the number M of cross-transmission lines corresponding to the optical cable carrying area from the service layer carrying-related data. 交 .

[0123] Calculate the service carrying crossover degree JC corresponding to the target overhead cable. M′ 交 The number of reference cross-transmission lines corresponding to the set stable optical cable transmission state.

[0124] B2. Calculate the service carrying stability assessment index λ corresponding to the target overhead optical cable. 业 ,

[0125] Where f1 and f2 are the weights of the service layer bearer stability assessment corresponding to the set service transmission interleaving degree and service transmission bearer compliance degree, respectively; JC′ and FZ′ are the set reference service bearer interleaving degree and service bearer complexity, respectively; and ξ is the set service layer bearer stability assessment correction factor.

[0126] This invention, through statistical analysis of service carrying complexity and service carrying overlap, conducts a service-level carrying stability assessment of the target overhead optical cable. This avoids the current drawback of not being able to further analyze the transmission overlap and complexity of the network transmission area corresponding to the power distribution communication optical cable, and enhances the strength of the carrying status analysis of the power distribution communication optical cable.

[0127] Step 3, Fiber Optic Cable Bearing Status Early Warning: Conduct early warning of the bearing status of both the fiber optic cable structure and the fiber optic cable service bearing layer.

[0128] Step 4, Optical Cable Load-Bearing Status Feedback: Feedback on the structural load-bearing stability assessment index and service load-bearing stability assessment index corresponding to the target overhead optical cable.

[0129] This invention achieves dual-level load-bearing assessment of the target overhead optical cable by conducting structural load-bearing stability assessment and service-level load-bearing stability assessment. This effectively solves the limitations of current single-dimensional analysis, expands the analytical coverage of the load-bearing status of power distribution and communication optical cables, improves the rationality of the load-bearing status analysis, and promotes the detection efficiency of abnormal load-bearing status of power distribution and communication optical cables, thereby effectively reducing the load-bearing safety hazards of power distribution and communication optical cables.

[0130] The above content is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, and all such modifications and additions should fall within the protection scope of the present invention.

Claims

1. A method for analyzing the load-bearing status of power distribution communication optical cables, characterized in that: The method includes: Step 1: Extract relevant data on optical cable carrying capacity; Step 11: Extract the structural layer bearing-related data corresponding to the target overhead optical cable; Step 12: Extract the relevant service layer bearer data corresponding to the target overhead optical cable; Step 2: Analyze the optical cable carrying data. If the analyzed data is less than the set value, proceed to Step 3; otherwise, proceed to Step 4. Step 21, Fiber Optic Cable Structural Load-Bearing Status Analysis: Analyze the structural load-bearing stability assessment index corresponding to the target overhead fiber optic cable. ,when If the condition is met, proceed to step 3; otherwise, proceed to step 4. Step 22, Optical Cable Service-Level Bearing Status Analysis: Analyze the service-bearing stability assessment index corresponding to the target overhead optical cable. ,when If the condition is met, proceed to step 3; otherwise, proceed to step 4. Step 3, Fiber Optic Cable Bearing Status Early Warning: Conduct early warning of the bearing status of both the fiber optic cable structure and the fiber optic cable service bearing layer; Step 4, Optical Cable Load-Bearing Status Feedback: Feedback on the structural load-bearing stability assessment index and service load-bearing stability assessment index corresponding to the target overhead optical cable; The structural layer carries relevant data including operational status monitoring data; the operational status monitoring data includes force data and appearance data. The specific analysis process is as follows: Based on the operational status monitoring data, the tensile load-bearing capacity of the target overhead optical cable is analyzed to meet the index. The apparent carrying capacity conforms to the index corresponding to the target overhead optical cable. ; ； in, These are the set tensile force and the weighted proportion of the apparent structural load, respectively. Here, e is the set structural load-bearing capacity assessment correction factor, and e is the natural constant. The specific calculation process for the apparent carrying capacity conformity index corresponding to the target overhead optical cable is as follows: From the apparent data, extract the number of protective sleeve damage points, protective sleeve thickness, and curvature of each laid optical cable at each monitoring time, and statistically analyze the conformity of the protective sleeve damage changes for each laid optical cable. Compliance of protective sleeve thickness variation And the degree of conformity with the curve change ; ； in, To determine the difference in the number of additional protective sleeve breaks as per the set reference permission, For the number of monitoring sessions, Let be the difference in the number of protective sleeve damage points for the i-th laid optical cable at the (t+1)-th monitoring time and the t-th monitoring time. For monitoring sequence numbering, ; ； in, To establish a new protective sleeve thickness difference for the set reference permission, The difference in the thickness of the protective sleeve for the i-th laid optical cable at the t-th monitoring time and at the (t+1)-th monitoring time; ； in, To establish a new protective sleeve thickness difference for the set reference permission, The difference in optical cable curvature between the i-th laid optical cable at the t-th monitoring time and the (t+1)-th monitoring time; Will , , Import the formula to calculate the apparent load-bearing capacity compliance index of the target overhead optical cable. , ; in, The weighting factors for the apparent load compliance assessment are respectively the set changes in protective sleeve, protective sleeve thickness, and protective sleeve curve. , , These are the minimum values ​​among the compliance rates of the protective sleeve damage variation, the protective sleeve thickness variation, and the curve variation for each laid optical cable. , , The compliance rates for protective sleeve damage variation, protective sleeve thickness variation, and curve variation were set separately for reference. The apparent load capacity of the optical cable is set to meet the evaluation correction factor.

2. The method for analyzing the carrying capacity of power distribution communication optical cables according to claim 1, characterized in that: The structural layer also carries relevant data including foundation laying data and laying environment data; The basic laying data includes the laying years, as well as the laying height, laying support spacing, and laying type of each laid optical cable; The environmental data for laying the optical cable includes meteorological and non-meteorological information. Meteorological information includes the average number of winds per year, the average number of snowfalls per year, the average snowfall amount per year, the average maximum wind speed per year, and the average minimum wind speed per year. Non-meteorological information includes the density and frequency of bird stops for each optical cable laid. The stress data includes the axial tensile force at both ends of each laid optical cable, and the apparent data includes the number of protective sleeve damage points, protective sleeve thickness, and curvature of each laid optical cable at each monitoring time. The business layer carries relevant data including the number of personnel in the optical cable carrying area, the number of transmission lines, the number of cross-transmission lines corresponding to the optical cable carrying area, the number of carrying communication nodes, and the transmission capacity set for each carrying communication node.

3. The method for analyzing the carrying capacity of power distribution communication optical cables according to claim 2, characterized in that: The specific analysis process is as follows: Extract the service layer bearer-related data corresponding to the target overhead optical cable, and calculate the service bearer complexity corresponding to the target overhead cable. Intersection with business carrying capacity ; The specific statistical process is as follows: extract the set transmission capacity corresponding to each bearer communication node from the relevant data carried at the business level; The set transmission capacity corresponding to each bearer communication node is compared, and the set transmission capacities with the same transmission capacity are used as characteristic transmission capacities. The number of characteristic transmission capacities is then counted. The number of bearer communication nodes corresponding to the transmission capacity of each feature 'r' represents the feature transmission capacity number. ; Extract the number of personnel in the optical cable carrying area from the relevant data at the business level. and the number of transmission lines ; ； in, This represents the conditional factor for the complexity of business operations. ; in, These represent the number of reference characteristic transmission capacities under the set stable optical cable transmission state, the extreme difference of the communication nodes corresponding to different transmission capacities, the number of reference users, and the number of reference transmission lines, respectively. These represent the maximum and minimum values ​​of the number of communication nodes corresponding to each set characteristic transmission capacity, respectively. These represent the weighting factors for the complexity assessment of service carrying capacity corresponding to the set number of characteristic transmission capacities, the extreme difference of the carrying communication nodes, the deviation of the number of users, and the deviation of the number of transmission lines, respectively. The specific calculation process is as follows: extract the number of cross-connect transmission lines corresponding to the optical cable carrying area from the relevant data of the service layer. ; , The number of reference cross-transmission lines corresponding to the set stable optical cable transmission state; ； in, These represent the weighted proportions of the service-level bearer stability assessment corresponding to the set service transmission interleaving degree and service transmission bearer compliance degree. These refer to the service carrying interleaving degree and service carrying complexity, respectively. The established business level carries a stability assessment correction factor.

4. The method for analyzing the carrying capacity of power distribution communication optical cables according to claim 2, characterized in that: The tensile strength bearing capacity conforms to the index of the target overhead optical cable, and the specific analysis process is as follows: Extract the axial tension values ​​at both ends of each laid optical cable from the operational status monitoring data, and record the axial tension values ​​at both ends of each laid optical cable as follows: and , This indicates the fiber optic cable number being laid. ; Based on the aforementioned basic laying data and laying environment data, the safe bearing axial tensile force values ​​at both ends of each laid optical cable are set, and are denoted as follows: and ; Calculate the tensile load bearing capacity of the target overhead optical cable according to the index. ; ； in, The set deviation of the safe tensile strength of the optical cable, where n is the number of optical cables to be laid. These are the weighting factors for the tensile load assessment ratio corresponding to the set tensile force deviations at the left and right ends of the optical cable. To set the tensile load correction factor.

5. The method for analyzing the load-bearing status of power distribution communication optical cables according to claim 4, characterized in that: The specific process for setting the axial tensile force value at both ends of each laid optical cable is as follows: Set the load-bearing tensile force correction factor for each laid optical cable. ; Set the interference factor of the optical cable carrying environment for each laid optical cable. ; Extract the axial tensile force value of the left end of the target overhead optical cable from the database. Calculate the axial tensile force value of the left end for each laid optical cable. , ,in These are the reference floating tension values ​​corresponding to the set laying size level and the laying environment level, respectively; Similarly, the axial tensile force value of the right end of each laid optical cable is calculated using the same method as the calculation of the axial tensile force value of the left end of each laid optical cable. .

6. The method for analyzing the load-bearing status of power distribution communication optical cables according to claim 5, characterized in that: The process for setting the load-bearing tensile strength correction factor for each laid optical cable is as follows: The laying model corresponding to each laid optical cable is extracted from the basic laying data, thereby locating the weight per unit laying distance of each laid optical cable from the database. ; Extract the laying years from the basic laying data. and the corresponding laying height of each optical cable. and the spacing between optical cable laying supports ; Calculate the axial tensile force variability assessment index for each laid optical cable. , ; in, This indicates a correction factor for tensile variability assessment. These represent the weighting factors for the axial tensile force variability assessment corresponding to the set weight, spacing, and height, respectively. These represent the optical cable weight, optical cable laying support spacing, and optical cable laying height, respectively, corresponding to the benchmark axial tensile force variability assessment index. Extract the rated service life of overhead optical cables from the database. ; Will , laying period and rated service life Import the formula to calculate the bearing tensile force correction factor for each laid optical cable. , ; in, , These are the set benchmark axial tensile force variability assessment index and the reference bearing tensile force correction factor corresponding to the benchmark axial tensile force variability assessment index, respectively. The reference loss service life corresponding to the set unit axial tensile force evaluation index difference. The deviation is set for the reference year period. This is the set correction factor for the year deviation.

7. The method for analyzing the carrying capacity of power distribution communication optical cables according to claim 6, characterized in that: The process for setting the optical cable carrying environment interference factor for each laid optical cable is as follows: The annual average number of winds, annual average number of snowfalls, annual average snowfall amount, annual average maximum wind speed, and annual average minimum wind speed are extracted from the aforementioned environmental data to calculate the meteorological environmental carrying capacity difference index. ; Will Import the formula to calculate the meteorological environmental carrying capacity difference index , ,in, These represent the weighting factors for the differences in environmental carrying capacity at the meteorological level, corresponding to the wind force level and snowfall level, respectively. The established correction factor for the assessment of differences in environmental carrying capacity at the meteorological level. Wind-related environmental carrying capacity difference index Snowfall-related environmental carrying capacity difference index; Extract the bird density corresponding to each laid optical cable from the laying environment data. and frequency of bird stays Calculate the environmental carrying capacity difference index at the non-meteorological level for each laid optical cable. , ; in, These represent the bird density and bird frequency under normal load conditions, corresponding to the reference load. The weighting of the non-meteorological environmental carrying capacity difference assessment is set. These represent the weighting factors for the non-meteorological assessment proportions of the set bird dwelling density and bird dwelling frequency, respectively. Calculate the environmental interference factor for each laid optical cable. , ; in, These are the weighting factors for the assessment of the proportion of optical cable carrying capacity interference based on the differences in meteorological and non-meteorological carrying capacity, respectively. To set a correction factor for the assessment of differences in environmental carrying capacity, These are the environmental carrying capacity difference indices corresponding to the meteorological and non-meteorological levels, respectively; The specific calculation process for the meteorological environmental carrying capacity difference index is as follows: the annual average number of winds, annual average number of snowfalls, annual average snowfall amount, annual average maximum wind speed, and annual average minimum wind speed are respectively denoted as... , , , and ; Will , , Import the formula to calculate the wind-level environmental carrying capacity difference index , ; in, These are the weighting factors for the environmental carrying capacity differences at the wind force level corresponding to deviations in wind frequency and wind speed. These are the reference load wind frequency and reference load wind speed under the set normal load conditions of the optical cable. The set correction factor for the wind-level environmental carrying capacity assessment. To set the reference wind speed extreme value ratio; Will , Import the formula to calculate the environmental carrying capacity difference index at the snowfall level. , ; in, These represent the weighting of the environmental carrying capacity difference assessment corresponding to the number of snowfalls and the amount of snowfall, respectively. These represent the reference snowfall count and reference snowfall amount under the set normal load conditions of the optical cable, respectively. This is a correction factor for the environmental carrying capacity assessment of the snowfall layer.

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