Prefabricated optical cable operation analysis and early warning method and system based on DVS

Abstract

The present invention relates to the field of optical fiber communication technology, and specifically discloses a method and system for prefabricated optical cable operation analysis and early warning based on DVS. On the one hand, by analyzing the signal evaluation value of each optical cable in the target area, and thereby analyzing the safety status of the optical cable, the optical cable failure and damage caused by temperature changes, external forces or environmental factors are avoided, and the accuracy and reliability of the optical cable operation analysis and early warning are improved to a certain extent, potential problems are discovered in time, and the normal operation of the optical cable is ensured. On the other hand, by analyzing the performance evaluation value of each optical cable in the target area, and thereby analyzing the transmission quality of the optical cable during operation, the network interruption or service quality degradation caused by the performance degradation of the optical cable is avoided, which helps the targeted management of the optical cable operation status early warning, ensures the stability and continuity of the network service, and thus improves the user experience.

Description

Technical Field

[0001] The present invention relates to the field of optical fiber communication technology, and in particular to a DVS-based prefabricated optical cable operation analysis and early warning method and system. Background Art

[0002] In today's information age, optical cables, as a core component of communication networks, carry a huge amount of data transmission tasks. However, with the continuous expansion of network scale and the rapid increase in transmission rate, the stability and safety of the operation status of optical cables face unprecedented challenges. During the laying and use of optical cables, they may be affected by environmental factors, human damage, material aging and other factors, resulting in interruptions in the communication network. Therefore, it is very necessary to prevent external forces from damaging communication optical cables through relevant early warning methods to monitor and protect the safety and reliability of the normal operation of communication optical cable lines.

[0003] Traditional optical cable operation monitoring methods usually rely on manual regular inspections and data analysis. This method involves a lot of repetitive work, has high labor costs, and has high requirements for the professional quality of inspectors. At the same time, since manual inspection judgments are somewhat one-sided and easily affected by subjective factors, the results lack accuracy and consistency, resulting in certain errors in the inspection results, and cannot provide reliable data support for the analysis of optical cable operation. In addition, traditional early warning methods lack real-time monitoring and risk assessment analysis of optical cable performance parameters, and cannot identify potential faults in a timely and accurate manner, thereby failing to achieve active prevention.

[0004] In order to solve the above defects, a technical solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a DVS-based prefabricated optical cable operation analysis and early warning method and system to solve the above-mentioned background problems.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A first aspect of the present invention provides a DVS-based prefabricated optical cable operation analysis and early warning method, comprising the following steps:

[0008] Step 1: Regional optical cable signal monitoring: The signal parameters of each optical cable in the target area are monitored in real time through distributed optical fiber sensing technology to obtain the signal parameters of each optical cable in the target area corresponding to the current monitoring period.

[0009] Step 2: Regional optical cable signal analysis: Analyze the vibration evaluation value, temperature evaluation value, and deformation evaluation value of each optical cable in the target area corresponding to the current monitoring period to obtain a set of signal evaluation parameters for each optical cable in the target area corresponding to the current monitoring period.

[0010] Preferably, the vibration evaluation value, temperature evaluation value, and deformation evaluation value of each optical cable in the target area corresponding to the current monitoring period are analyzed, and the specific analysis process is as follows:

[0011] Extract the vibration amplitude of each optical cable at each monitoring time point in the current monitoring period from the signal parameters of each optical cable in the target area corresponding to the current monitoring period i represents the number of each optical cable, i = 1, 2, ..., n, n represents the total number of optical cable numbers, j represents the number of each monitoring time point, j = 1, 2, ..., m, m represents the total number of monitoring time point numbers, according to the formula Calculate the vibration assessment value ZD of each optical cable in the target area corresponding to the current monitoring period i , e is expressed as a natural constant, It is represented by the vibration amplitude of the i-th optical cable at the j-1-th monitoring time point in the current monitoring period, zd' is represented by the set reference optical cable vibration amplitude, Δzd is represented by the set reference optical cable vibration amplitude difference, a1 and a2 are represented by the set reference optical cable vibration amplitude difference and the influence factor corresponding to the optical cable vibration amplitude difference at adjacent monitoring time points, respectively;

[0012] Extract the optical cable temperature of each optical cable at each monitoring time point in the current monitoring period from the signal parameters of each optical cable in the target area corresponding to the current monitoring period At the same time, the atmospheric temperature of the target area corresponding to the current monitoring period is obtained from the database, and the atmospheric temperature of the target area corresponding to the current monitoring period is matched with the reference optical cable temperature corresponding to each set atmospheric temperature to obtain the reference optical cable temperature wd' of the target area corresponding to the current monitoring period;

[0013] According to the formula Calculate the temperature assessment value WD of each optical cable in the target area corresponding to the current monitoring period i , It is represented as the cable temperature of the i-th cable at the j-1-th monitoring time point in the current monitoring period, Δwd is represented as the set reference cable temperature difference, a3 and a4 are represented as the set reference cable temperature difference and the influence factors corresponding to the cable temperature difference at adjacent monitoring time points, respectively;

[0014] Extract the optical cable lengths of each optical cable at each monitoring time point in the current monitoring period from the signal parameters of each optical cable in the target area corresponding to the current monitoring period At the same time, the initial optical cable length L0 corresponding to each optical cable is extracted from the initial optical cable length corresponding to each optical cable stored in the database, according to the formula Calculate the optical cable length matching value LP of each optical cable corresponding to the current monitoring period i, z is represented as a natural constant, a5 and a6 are represented as the influence factor of the set optical cable corresponding to the stretched length and the influence factor of each optical cable corresponding to the shortened length respectively;

[0015] The optical cable outer sheath images of each optical cable at each monitoring time point in the current monitoring period are extracted from the signal parameters of each optical cable in the target area corresponding to the current monitoring period. At the same time, the optical cable outer sheath images corresponding to each abnormal type are extracted from the optical cable outer sheath images corresponding to each abnormal type stored in the database. The optical cable outer sheath images of each optical cable at each monitoring time point in the current monitoring period are matched with the optical cable outer sheath images corresponding to each abnormal type to obtain each abnormal type area of ​​each optical cable at each monitoring time point in the current monitoring period, wherein the abnormal type is specifically a detachment type, a damage type, and a fracture type, and the area corresponding to each abnormal type area is extracted therefrom, thereby statistically obtaining the total area of ​​the detachment type area, the total area of ​​the damage type area, and the total area of ​​the fracture type area of ​​each optical cable at each monitoring time point in the current monitoring period, and marking them respectively.

[0016] According to the formula Calculate the cable outer sheath condition value BK of each cable in the target area corresponding to the current monitoring period i , They are respectively represented as the total area of ​​the shedding type area, the total area of ​​the damaged type area, and the total area of ​​the fracture type area of ​​the i-th optical cable at the j-1-th monitoring time point in the current monitoring period; a7, a8, and a9 are respectively represented as the impact factors corresponding to the total area of ​​the shedding type area at the set adjacent monitoring time points, the impact factors corresponding to the total area of ​​the damaged type area at the adjacent monitoring time points, and the impact factors corresponding to the total area of ​​the fracture type area at the adjacent monitoring time points;

[0017] According to the formula Calculate the deformation assessment value XB of each optical cable in the target area corresponding to the current monitoring period i , b1 and b2 represent the weight factor corresponding to the set optical cable length matching value and the weight factor corresponding to the optical cable outer sheath condition value respectively;

[0018] The signal evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period is composed of the vibration evaluation value, temperature evaluation value and deformation evaluation value of each optical cable in the target area corresponding to the current monitoring period.

[0019] Step 3: Regional optical cable performance monitoring: Real-time monitoring of the performance parameters of each optical cable in the target area is performed to obtain the performance parameters of each optical cable in the target area corresponding to the current monitoring period.

[0020] Step 4: Regional optical cable performance analysis: Analyze the attenuation evaluation value, bandwidth evaluation value, and signal-to-noise ratio evaluation value of each optical cable in the target area corresponding to the current monitoring period to obtain a set of performance evaluation parameters for each optical cable in the target area corresponding to the current monitoring period.

[0021] Preferably, the attenuation evaluation value, bandwidth evaluation value, and signal-to-noise ratio evaluation value of each optical cable in the target area corresponding to the current monitoring period are analyzed, and the specific analysis process is as follows:

[0022] The input optical power and output optical power of each optical cable at each monitoring time point in the current monitoring period are extracted from the performance parameters of each optical cable in the target area corresponding to the current monitoring period, and marked as According to the formula Calculate the optical cable attenuation value of each optical cable in the target area at each monitoring time point in the current monitoring period

[0023] The optical cable attenuation value of each optical cable in the target area at each monitoring time point in the current monitoring period is compared with the set reference optical cable attenuation value. If the optical cable attenuation value of a certain optical cable at a certain monitoring time point in the current monitoring period is greater than the set reference optical cable attenuation value, the optical cable at the monitoring time point in the current monitoring period is recorded as an abnormal point. If the optical cable attenuation value of a certain optical cable at a certain monitoring time point in the current monitoring period is equal to or less than the set reference optical cable attenuation value, the optical cable at the monitoring time point in the current monitoring period is recorded as a normal point. Thus, the number of abnormal points and the number of normal points of each optical cable in the target area corresponding to the current monitoring period are obtained by statistics;

[0024] According to the formula Calculate the optical cable attenuation assessment value SP of each optical cable corresponding to the current monitoring period i , Y.C. i It is expressed as the number of abnormal points of each optical cable in the target area corresponding to the current monitoring period, ZC i It is represented by the number of normal points of each optical cable in the target area corresponding to the current monitoring period, and c1 and c2 are respectively represented by the set weight factors;

[0025] Extract the optical cable bandwidth of each optical cable at each monitoring time point in the current monitoring period from the performance parameters of each optical cable in the target area corresponding to the current monitoring period According to the formula Calculate the bandwidth assessment value DK of each optical cable in the target area corresponding to the current monitoring period i , It is represented as the cable bandwidth of the i-th cable at the j-1-th monitoring time point in the current monitoring period, dk' is represented as the set reference cable bandwidth, c3 and c4 are represented as the influence factor corresponding to the set adjacent monitoring time points and the influence factor corresponding to the reference cable bandwidth, respectively;

[0026] Extract the optical cable signal-to-noise ratio of each optical cable at each monitoring time point in the current monitoring period from the performance parameters of each optical cable in the target area corresponding to the current monitoring period According to the formula Calculate the signal-to-noise ratio evaluation value XZ of each optical cable in the target area corresponding to the current monitoring period i , It is represented by the optical cable signal-to-noise ratio of the i-th optical cable at the j-1-th monitoring time point in the current monitoring period, xz' is represented by the set reference optical cable signal-to-noise ratio, c5 and c6 are represented by the influence factor corresponding to the optical cable signal-to-noise ratio at the set adjacent monitoring time points and the influence factor corresponding to the reference optical cable signal-to-noise ratio, respectively;

[0027] The attenuation evaluation value, bandwidth evaluation value, and signal-to-noise ratio evaluation value of each optical cable in the target area corresponding to the current monitoring period constitute a performance evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period.

[0028] Step 5, optical cable operation status analysis: Based on the signal evaluation parameter set and performance evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period, the optical cable safety status evaluation coefficient and the optical cable transmission quality evaluation coefficient of each optical cable in the target area corresponding to the current monitoring period are analyzed. Thus, the early warning information of each optical cable in the target area corresponding to the current monitoring period is analyzed to obtain the early warning information of each optical cable in the target area corresponding to the current monitoring period.

[0029] Preferably, the optical cable safety status assessment coefficient and the optical cable transmission quality assessment coefficient of each optical cable in the target area corresponding to the current monitoring period are analyzed, thereby analyzing the early warning information of each optical cable in the target area corresponding to the current monitoring period, and the specific analysis steps are as follows:

[0030] According to the formula Calculate the optical cable safety status assessment coefficient α of each optical cable in the target area corresponding to the current monitoring period i , w1, w2, w3 represent the coefficient factors corresponding to the set vibration evaluation value, temperature evaluation value, and deformation evaluation value respectively;

[0031] The optical cable safety status assessment coefficient of each optical cable in the target area corresponding to the current monitoring period is compared with the set optical cable safety status assessment coefficient threshold. If the optical cable safety status assessment coefficient of a certain optical cable corresponding to the current monitoring period is less than the set optical cable safety status assessment coefficient threshold, the warning information of the optical cable corresponding to the current monitoring period is determined to be a safety risk;

[0032] According to the formula Calculate the optical cable transmission quality assessment coefficient β of each optical cable in the target area corresponding to the current monitoring period i, w4, w5, and w6 represent the coefficient factors corresponding to the set attenuation evaluation value, bandwidth evaluation value, and signal-to-noise ratio evaluation value, respectively;

[0033] The optical cable transmission quality assessment coefficient of each optical cable in the target area corresponding to the current monitoring period is compared with the set optical cable transmission quality assessment coefficient threshold. If the optical cable transmission quality assessment coefficient of an optical cable corresponding to the current monitoring period is less than the set optical cable transmission quality assessment coefficient threshold, the warning information of the optical cable corresponding to the current monitoring period is determined to be a transmission risk.

[0034] Step 6: Execution: Based on the warning information of each optical cable in the target area corresponding to the current monitoring period, corresponding processing is performed.

[0035] A second aspect of the present invention provides a prefabricated optical cable operation analysis and early warning system based on DVS, comprising:

[0036] The regional optical cable signal monitoring module is used to monitor the signal parameters of each optical cable in the target area in real time through distributed optical fiber sensing technology, and obtain the signal parameters of each optical cable in the target area corresponding to the current monitoring period;

[0037] The regional optical cable signal analysis module is used to analyze the vibration evaluation value, temperature evaluation value, and deformation evaluation value of each optical cable in the target area corresponding to the current monitoring period, and obtain a set of signal evaluation parameters of each optical cable in the target area corresponding to the current monitoring period;

[0038] The regional optical cable performance monitoring module is used to monitor the performance parameters of each optical cable in the target area in real time, and obtain the performance parameters of each optical cable in the target area corresponding to the current monitoring period;

[0039] The regional optical cable performance analysis module is used to analyze the attenuation evaluation value, bandwidth evaluation value, and signal-to-noise ratio evaluation value of each optical cable in the target area corresponding to the current monitoring period, and obtain a set of performance evaluation parameters of each optical cable in the target area corresponding to the current monitoring period;

[0040] The optical cable operation status analysis module is used to analyze the optical cable safety status evaluation coefficient and the optical cable transmission quality evaluation coefficient of each optical cable in the target area corresponding to the current monitoring period based on the signal evaluation parameter set and the performance evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period, thereby analyzing the early warning information of each optical cable in the target area corresponding to the current monitoring period, and obtaining the early warning information of each optical cable in the target area corresponding to the current monitoring period;

[0041] An execution terminal is used to perform corresponding processing based on the early warning information of each optical cable in the target area corresponding to the current monitoring period;

[0042] The database is used to store the atmospheric temperature of the target area corresponding to the current monitoring period, store the optical cable outer sheath image corresponding to each abnormal type, and store the location information corresponding to each optical cable.

[0043] Beneficial effects of the present invention:

[0044] The present invention analyzes the signal evaluation value of each optical cable in the target area, and thereby analyzes the safety status of the optical cables, thereby avoiding optical cable failure and damage caused by temperature changes, external forces or environmental factors. To a certain extent, it improves the accuracy and reliability of optical cable operation analysis and early warning, discovers potential problems in time, and ensures the normal operation of the optical cables.

[0045] The present invention analyzes the performance evaluation value of each optical cable in the target area, and thereby analyzes the transmission quality of the optical cable during operation, so as to avoid network interruption or service quality degradation due to performance degradation of the optical cable, and contributes to the targeted management of optical cable operation status early warning, ensuring the stability and continuity of network services, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention will be further described below in conjunction with the accompanying drawings.

[0047] Figure 1 It is a flow chart of the method of the present invention.

[0048] Figure 2 It is a system block diagram of the present invention. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] See also Figure 1 As shown, the present invention is a prefabricated optical cable operation analysis and early warning method based on DVS, comprising the following steps:

[0051] Step 1: Regional optical cable signal monitoring: The signal parameters of each optical cable in the target area are monitored in real time through distributed optical fiber sensing technology to obtain the signal parameters of each optical cable in the target area corresponding to the current monitoring period; the signal parameters of each optical cable in the target area corresponding to the current monitoring period are specifically: the vibration amplitude of the optical cable, the temperature of the optical cable, the length of the optical cable, and the image of the outer sheath of the optical cable at each monitoring time point in the current monitoring period.

[0052] Step 2: Regional optical cable signal analysis: Analyze the vibration assessment value, temperature assessment value, and deformation assessment value of each optical cable in the target area corresponding to the current monitoring period. The specific analysis process is as follows:

[0053] Extract the vibration amplitude of each optical cable at each monitoring time point in the current monitoring period from the signal parameters of each optical cable in the target area corresponding to the current monitoring period i represents the number of each optical cable, i = 1, 2, ..., n, n represents the total number of optical cable numbers, j represents the number of each monitoring time point, j = 1, 2, ..., m, m represents the total number of monitoring time point numbers, according to the formula Calculate the vibration assessment value ZD of each optical cable in the target area corresponding to the current monitoring period i , e is expressed as a natural constant, It is represented by the vibration amplitude of the i-th optical cable at the j-1-th monitoring time point in the current monitoring period, zd' is represented by the set reference optical cable vibration amplitude, Δzd is represented by the set reference optical cable vibration amplitude difference, a1 and a2 are represented by the set reference optical cable vibration amplitude difference and the influence factor corresponding to the optical cable vibration amplitude difference at adjacent monitoring time points, respectively;

[0054] Extract the optical cable temperature of each optical cable at each monitoring time point in the current monitoring period from the signal parameters of each optical cable in the target area corresponding to the current monitoring period At the same time, the atmospheric temperature of the target area corresponding to the current monitoring period is obtained from the database, and the atmospheric temperature of the target area corresponding to the current monitoring period is matched with the reference optical cable temperature corresponding to each set atmospheric temperature to obtain the reference optical cable temperature wd' of the target area corresponding to the current monitoring period;

[0055] According to the formula Calculate the temperature assessment value WD of each optical cable in the target area corresponding to the current monitoring period i , It is represented as the cable temperature of the i-th cable at the j-1-th monitoring time point in the current monitoring period, Δwd is represented as the set reference cable temperature difference, a3 and a4 are represented as the set reference cable temperature difference and the influence factors corresponding to the cable temperature difference at adjacent monitoring time points, respectively;

[0056] Extract the optical cable lengths of each optical cable at each monitoring time point in the current monitoring period from the signal parameters of each optical cable in the target area corresponding to the current monitoring period At the same time, the initial optical cable length L0 corresponding to each optical cable is extracted from the initial optical cable length corresponding to each optical cable stored in the database, according to the formula Calculate the optical cable length matching value LP of each optical cable corresponding to the current monitoring period i, z is represented as a natural constant, a5 and a6 are represented as the influence factor of the set optical cable corresponding to the stretched length and the influence factor of each optical cable corresponding to the shortened length respectively;

[0057] The optical cable outer sheath images of each optical cable at each monitoring time point in the current monitoring period are extracted from the signal parameters of each optical cable in the target area corresponding to the current monitoring period. At the same time, the optical cable outer sheath images corresponding to each abnormal type are extracted from the optical cable outer sheath images corresponding to each abnormal type stored in the database. The optical cable outer sheath images of each optical cable at each monitoring time point in the current monitoring period are matched with the optical cable outer sheath images corresponding to each abnormal type to obtain each abnormal type area of ​​each optical cable at each monitoring time point in the current monitoring period, wherein the abnormal type is specifically a detachment type, a damage type, and a fracture type, and the area corresponding to each abnormal type area is extracted therefrom, thereby statistically obtaining the total area of ​​the detachment type area, the total area of ​​the damage type area, and the total area of ​​the fracture type area of ​​each optical cable at each monitoring time point in the current monitoring period, and marking them respectively.

[0058] According to the formula Calculate the cable outer sheath condition value BK of each cable in the target area corresponding to the current monitoring period i , They are respectively represented as the total area of ​​the shedding type area, the total area of ​​the damaged type area, and the total area of ​​the fracture type area of ​​the i-th optical cable at the j-1-th monitoring time point in the current monitoring period; a7, a8, and a9 are respectively represented as the impact factors corresponding to the total area of ​​the shedding type area at the set adjacent monitoring time points, the impact factors corresponding to the total area of ​​the damaged type area at the adjacent monitoring time points, and the impact factors corresponding to the total area of ​​the fracture type area at the adjacent monitoring time points;

[0059] According to the formula Calculate the deformation assessment value XB of each optical cable in the target area corresponding to the current monitoring period i , b1 and b2 represent the weight factor corresponding to the set optical cable length matching value and the weight factor corresponding to the optical cable outer sheath condition value respectively;

[0060] The signal evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period is composed of the vibration evaluation value, temperature evaluation value and deformation evaluation value of each optical cable in the target area corresponding to the current monitoring period.

[0061] Step 3: Regional optical cable performance monitoring: Real-time monitoring of the performance parameters of each optical cable in the target area to obtain the performance parameters of each optical cable in the target area corresponding to the current monitoring period; the performance parameters of each optical cable in the target area corresponding to the current monitoring period are specifically: the input optical power, output optical power, optical cable bandwidth, and optical cable signal-to-noise ratio of each optical cable at each monitoring time point in the current monitoring period;

[0062] Step 4: Regional optical cable performance analysis: Analyze the attenuation assessment value, bandwidth assessment value, and signal-to-noise ratio assessment value of each optical cable in the target area corresponding to the current monitoring period. The specific analysis process is as follows:

[0063] The input optical power and output optical power of each optical cable at each monitoring time point in the current monitoring period are extracted from the performance parameters of each optical cable in the target area corresponding to the current monitoring period, and marked as According to the formula Calculate the optical cable attenuation value of each optical cable in the target area at each monitoring time point in the current monitoring period

[0064] The optical cable attenuation value of each optical cable in the target area at each monitoring time point in the current monitoring period is compared with the set reference optical cable attenuation value. If the optical cable attenuation value of a certain optical cable at a certain monitoring time point in the current monitoring period is greater than the set reference optical cable attenuation value, the optical cable at the monitoring time point in the current monitoring period is recorded as an abnormal point. If the optical cable attenuation value of a certain optical cable at a certain monitoring time point in the current monitoring period is equal to or less than the set reference optical cable attenuation value, the optical cable at the monitoring time point in the current monitoring period is recorded as a normal point. Thus, the number of abnormal points and the number of normal points of each optical cable in the target area corresponding to the current monitoring period are obtained by statistics;

[0065] According to the formula Calculate the optical cable attenuation assessment value SP of each optical cable corresponding to the current monitoring period i , Y.C. i It is expressed as the number of abnormal points of each optical cable in the target area corresponding to the current monitoring period, ZC i It is represented by the number of normal points of each optical cable in the target area corresponding to the current monitoring period, and c1 and c2 are respectively represented by the set weight factors;

[0066] Extract the optical cable bandwidth of each optical cable at each monitoring time point in the current monitoring period from the performance parameters of each optical cable in the target area corresponding to the current monitoring period According to the formula Calculate the bandwidth assessment value DK of each optical cable in the target area corresponding to the current monitoring period i , It is represented as the cable bandwidth of the i-th cable at the j-1-th monitoring time point in the current monitoring period, dk' is represented as the set reference cable bandwidth, c3 and c4 are represented as the influence factor corresponding to the cable bandwidth at the set adjacent monitoring time points and the influence factor corresponding to the reference bandwidth respectively;

[0067] Extract the optical cable signal-to-noise ratio of each optical cable at each monitoring time point in the current monitoring period from the performance parameters of each optical cable in the target area corresponding to the current monitoring period According to the formula Calculate the signal-to-noise ratio evaluation value XZ of each optical cable in the target area corresponding to the current monitoring period i , It is represented by the optical cable signal-to-noise ratio of the i-th optical cable at the j-1-th monitoring time point in the current monitoring period, xz' is represented by the set reference optical cable signal-to-noise ratio, c5 and c6 are represented by the influence factor corresponding to the optical cable signal-to-noise ratio at the set adjacent monitoring time points and the influence factor corresponding to the reference signal-to-noise ratio, respectively;

[0068] The attenuation evaluation value, bandwidth evaluation value, and signal-to-noise ratio evaluation value of each optical cable in the target area corresponding to the current monitoring period constitute a performance evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period;

[0069] Step 5: Analysis of the operation status of optical cables: Based on the signal evaluation parameter set and performance evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period, the optical cable safety status evaluation coefficient and the optical cable transmission quality evaluation coefficient of each optical cable in the target area corresponding to the current monitoring period are analyzed, thereby analyzing the early warning information of each optical cable in the target area corresponding to the current monitoring period. The specific analysis steps are as follows:

[0070] According to the formula Calculate the optical cable safety status assessment coefficient α of each optical cable in the target area corresponding to the current monitoring period i , w1, w2, w3 represent the coefficient factors corresponding to the set vibration evaluation value, temperature evaluation value, and deformation evaluation value respectively;

[0071] The optical cable safety status assessment coefficient of each optical cable in the target area corresponding to the current monitoring period is compared with the set optical cable safety status assessment coefficient threshold. If the optical cable safety status assessment coefficient of a certain optical cable corresponding to the current monitoring period is less than the set optical cable safety status assessment coefficient threshold, the warning information of the optical cable corresponding to the current monitoring period is determined to be a safety risk;

[0072] In a specific embodiment, the present invention analyzes the signal evaluation value of each optical cable in the target area, and thereby analyzes the safety status of the optical cables, thereby avoiding optical cable failure and damage caused by temperature changes, external forces or environmental factors, and to a certain extent improves the accuracy and reliability of optical cable operation analysis and early warning, discovers potential problems in a timely manner, and ensures the normal operation of the optical cables.

[0073] According to the formula Calculate the optical cable transmission quality assessment coefficient β of each optical cable in the target area corresponding to the current monitoring period i , w4, w5, and w6 represent the coefficient factors corresponding to the set attenuation evaluation value, bandwidth evaluation value, and signal-to-noise ratio evaluation value, respectively;

[0074] Compare the optical cable transmission quality assessment coefficient of each optical cable in the target area corresponding to the current monitoring period with the set optical cable transmission quality assessment coefficient threshold. If the optical cable transmission quality assessment coefficient of a certain optical cable corresponding to the current monitoring period is less than the set optical cable transmission quality assessment coefficient threshold, then the warning information of the optical cable corresponding to the current monitoring period is determined to be a transmission risk;

[0075] In a specific embodiment, the present invention analyzes the performance evaluation value of each optical cable in the target area, and thereby analyzes the transmission quality of the optical cable during operation, so as to avoid network interruption or service quality degradation due to performance degradation of the optical cable, facilitate targeted management of optical cable operation status warning, ensure the stability and continuity of network services, and thus enhance the user experience.

[0076] Step 6: Execution: Based on the warning information of each optical cable in the target area corresponding to the current monitoring period, corresponding processing is performed.

[0077] In a specific embodiment, if the warning information of a certain optical cable in the target area corresponding to the current monitoring period is a safety risk, the safety risk of the optical cable corresponding to the current monitoring period is displayed through the display in the execution terminal, for example: "A certain optical cable has a safety risk in the current monitoring period, please deal with it in time", and the location information of the optical cable is extracted from the database, and the content displayed in the display and the location information of the optical cable are sent to the mobile terminal of the corresponding manager through the transmitter;

[0078] If the warning information of a certain optical cable in the target area corresponding to the current monitoring period is a transmission risk, the transmission risk of the optical cable corresponding to the current monitoring period will be displayed through the display in the execution terminal, for example: "A certain optical cable has a transmission risk in the current monitoring period, please deal with it in time", and the location information of the optical cable will be extracted from the database, and the content displayed in the display and the location information of the optical cable will be sent to the mobile terminal of the corresponding manager through the transmitter.

[0079] See also Figure 2 As shown, the present invention is a prefabricated optical cable operation analysis and early warning system based on DVS, including: a regional optical cable signal monitoring module, a regional optical cable signal analysis module, a regional optical cable performance monitoring module, a regional optical cable performance analysis module, an optical cable operation status analysis module, an execution terminal and a database.

[0080] The regional optical cable signal monitoring module is used to monitor the signal parameters of each optical cable in the target area in real time through distributed optical fiber sensing technology, and obtain the signal parameters of each optical cable in the target area corresponding to the current monitoring period;

[0081] The regional optical cable signal analysis module is used to analyze the vibration evaluation value, temperature evaluation value, and deformation evaluation value of each optical cable in the target area corresponding to the current monitoring period, and obtain a set of signal evaluation parameters of each optical cable in the target area corresponding to the current monitoring period;

[0082] The regional optical cable performance monitoring module is used to monitor the performance parameters of each optical cable in the target area in real time, and obtain the performance parameters of each optical cable in the target area corresponding to the current monitoring period;

[0083] The regional optical cable performance analysis module is used to analyze the attenuation evaluation value, bandwidth evaluation value, and signal-to-noise ratio evaluation value of each optical cable in the target area corresponding to the current monitoring period, and obtain a set of performance evaluation parameters of each optical cable in the target area corresponding to the current monitoring period;

[0084] The optical cable operation status analysis module is used to analyze the optical cable safety status evaluation coefficient and the optical cable transmission quality evaluation coefficient of each optical cable in the target area corresponding to the current monitoring period based on the signal evaluation parameter set and the performance evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period, thereby analyzing the early warning information of each optical cable in the target area corresponding to the current monitoring period, and obtaining the early warning information of each optical cable in the target area corresponding to the current monitoring period;

[0085] The execution terminal is used to perform corresponding processing based on the early warning information of each optical cable in the target area corresponding to the current monitoring period.

[0086] The database is used to store the atmospheric temperature of the target area corresponding to the current monitoring period, store the optical cable outer sheath image corresponding to each abnormal type, and store the location information corresponding to each optical cable.

[0087] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. The prefabricated optical cable operation analysis and early warning method based on DVS is characterized by: The following steps are involved: Step 1: Regional optical cable signal monitoring: Use distributed optical fiber sensing technology DVS to monitor the signal parameters of each optical cable in the target area in real time, and obtain the signal parameters of each optical cable in the target area corresponding to the current monitoring period; Step 2: Regional optical cable signal analysis: Analyze the vibration evaluation value, temperature evaluation value, and deformation evaluation value of each optical cable in the target area corresponding to the current monitoring period to obtain a signal evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period; The vibration evaluation value, temperature evaluation value and deformation evaluation value of each optical cable in the target area corresponding to the current monitoring period are analyzed, and the specific analysis process is as follows: Extract the vibration amplitude of each optical cable at each monitoring time point in the current monitoring period from the signal parameters of each optical cable in the target area corresponding to the current monitoring period i represents the number of each optical cable, i = 1, 2, ..., n, n represents the total number of optical cable numbers, j represents the number of each monitoring time point, j = 1, 2, ..., m, m represents the total number of monitoring time point numbers, according to the formula Calculate the vibration assessment value ZD of each optical cable in the target area corresponding to the current monitoring period i , e is expressed as a natural constant, It is represented by the vibration amplitude of the i-th optical cable at the j-1-th monitoring time point in the current monitoring period, zd' is represented by the set reference optical cable vibration amplitude, Δzd is represented by the set reference optical cable vibration amplitude difference, a1 and a2 are represented by the set reference optical cable vibration amplitude difference and the influence factor corresponding to the optical cable vibration amplitude difference at adjacent monitoring time points, respectively; Extract the optical cable temperature of each optical cable at each monitoring time point in the current monitoring period from the signal parameters of each optical cable in the target area corresponding to the current monitoring period At the same time, the atmospheric temperature of the target area corresponding to the current monitoring period is obtained from the database, and the atmospheric temperature of the target area corresponding to the current monitoring period is matched with the reference optical cable temperature corresponding to each set atmospheric temperature to obtain the reference optical cable temperature wd' of the target area corresponding to the current monitoring period; According to the formula Calculate the temperature assessment value WD of each optical cable in the target area corresponding to the current monitoring period i , It is represented as the cable temperature of the i-th cable at the j-1-th monitoring time point in the current monitoring period, Δwd is represented as the set reference cable temperature difference, a3 and a4 are represented as the set reference cable temperature difference and the influence factors corresponding to the cable temperature difference at adjacent monitoring time points, respectively; The optical cable lengths of each optical cable corresponding to each monitoring time point in the current monitoring period are extracted from the signal parameters of each optical cable in the target area corresponding to the current monitoring period. At the same time, the initial optical cable lengths of each optical cable corresponding to each optical cable stored in the database are extracted. The optical cable length matching value LP of each optical cable corresponding to the current monitoring period is obtained through analysis. i ; The optical cable outer sheath images of each optical cable at each monitoring time point in the current monitoring period are extracted from the signal parameters of each optical cable in the target area corresponding to the current monitoring period. At the same time, the optical cable outer sheath images corresponding to each abnormal type are extracted from the optical cable outer sheath images corresponding to each abnormal type stored in the database. The optical cable outer sheath images of each optical cable at each monitoring time point in the current monitoring period are matched with the optical cable outer sheath images corresponding to each abnormal type to obtain each abnormal type area of ​​each optical cable at each monitoring time point in the current monitoring period, wherein the abnormal type is specifically a detachment type, a damage type, and a fracture type, and the area corresponding to each abnormal type area is extracted therefrom, thereby statistically obtaining the total area of ​​the detachment type area, the total area of ​​the damage type area, and the total area of ​​the fracture type area of ​​each optical cable at each monitoring time point in the current monitoring period. The optical cable outer sheath condition value BK of each optical cable in the target area corresponding to the current monitoring period is obtained through analysis. i ; According to the formula Calculate the deformation assessment value XB of each optical cable in the target area corresponding to the current monitoring period i , b1 and b2 represent the weight factor corresponding to the set optical cable length matching value and the weight factor corresponding to the optical cable outer sheath condition value respectively; The signal evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period is formed by the vibration evaluation value, temperature evaluation value and deformation evaluation value of each optical cable in the target area corresponding to the current monitoring period; Step 3: Regional optical cable performance monitoring: Real-time monitoring of the performance parameters of each optical cable in the target area to obtain the performance parameters of each optical cable in the target area corresponding to the current monitoring period; Step 4: Regional optical cable performance analysis: Analyze the attenuation evaluation value, bandwidth evaluation value, and signal-to-noise ratio evaluation value of each optical cable in the target area corresponding to the current monitoring period to obtain a set of performance evaluation parameters for each optical cable in the target area corresponding to the current monitoring period; The attenuation evaluation value, bandwidth evaluation value and signal-to-noise ratio evaluation value of each optical cable in the target area corresponding to the current monitoring period are analyzed, and the specific analysis process is as follows: Extract the input optical power and output optical power of each optical cable at each monitoring time point in the current monitoring period from the performance parameters of each optical cable in the target area corresponding to the current monitoring period, and obtain the optical cable attenuation value of each optical cable in the target area at each monitoring time point in the current monitoring period through analysis; The optical cable attenuation value of each optical cable in the target area at each monitoring time point in the current monitoring period is compared with the set reference optical cable attenuation value. If the optical cable attenuation value of a certain optical cable at a certain monitoring time point in the current monitoring period is greater than the set reference optical cable attenuation value, the optical cable at the monitoring time point in the current monitoring period is recorded as an abnormal point. If the optical cable attenuation value of a certain optical cable at a certain monitoring time point in the current monitoring period is equal to or less than the set reference optical cable attenuation value, the optical cable at the monitoring time point in the current monitoring period is recorded as a normal point. Thus, the number of abnormal points and the number of normal points of each optical cable in the target area corresponding to the current monitoring period are obtained by statistics; According to the formula Calculate the optical cable attenuation assessment value SP of each optical cable corresponding to the current monitoring period i , Y.C. i It is expressed as the number of abnormal points of each optical cable in the target area corresponding to the current monitoring period, ZC i It is represented by the number of normal points of each optical cable in the target area corresponding to the current monitoring period, and c1 and c2 are respectively represented by the set weight factors; Extract the optical cable bandwidth of each optical cable at each monitoring time point in the current monitoring period from the performance parameters of each optical cable in the target area corresponding to the current monitoring period According to the formula Calculate the bandwidth assessment value DK of each optical cable in the target area corresponding to the current monitoring period i , It is represented as the cable bandwidth of the i-th cable at the j-1-th monitoring time point in the current monitoring period, dk' is represented as the set reference cable bandwidth, c3 and c4 are represented as the influence factor corresponding to the set adjacent monitoring time points and the influence factor corresponding to the reference cable bandwidth, respectively; Extract the optical cable signal-to-noise ratio of each optical cable at each monitoring time point in the current monitoring period from the performance parameters of each optical cable in the target area corresponding to the current monitoring period According to the formula Calculate the signal-to-noise ratio evaluation value XZ of each optical cable in the target area corresponding to the current monitoring period i , It is represented by the optical cable signal-to-noise ratio of the i-th optical cable at the j-1-th monitoring time point in the current monitoring period, xz' is represented by the set reference optical cable signal-to-noise ratio, c5 and c6 are represented by the influence factor corresponding to the optical cable signal-to-noise ratio at the set adjacent monitoring time points and the influence factor corresponding to the reference optical cable signal-to-noise ratio, respectively; The attenuation evaluation value, bandwidth evaluation value and signal-to-noise ratio evaluation value of each optical cable in the target area corresponding to the current monitoring period constitute a performance evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period; Step 5, optical cable operation status analysis: based on the signal evaluation parameter set and performance evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period, the optical cable safety status evaluation coefficient and the optical cable transmission quality evaluation coefficient of each optical cable in the target area corresponding to the current monitoring period are analyzed, thereby analyzing the early warning information of each optical cable in the target area corresponding to the current monitoring period, and obtaining the early warning information of each optical cable in the target area corresponding to the current monitoring period; The optical cable safety status assessment coefficient and the optical cable transmission quality assessment coefficient of each optical cable in the target area corresponding to the current monitoring period are analyzed, thereby analyzing the early warning information of each optical cable in the target area corresponding to the current monitoring period, and the specific analysis steps are as follows: According to the formula Calculate the optical cable safety status assessment coefficient α of each optical cable in the target area corresponding to the current monitoring period i , w1, w2, w3 represent the coefficient factors corresponding to the set vibration evaluation value, temperature evaluation value and deformation evaluation value respectively; The optical cable safety status assessment coefficient of each optical cable in the target area corresponding to the current monitoring period is compared with the set optical cable safety status assessment coefficient threshold. If the optical cable safety status assessment coefficient of a certain optical cable corresponding to the current monitoring period is less than the set optical cable safety status assessment coefficient threshold, the warning information of the optical cable corresponding to the current monitoring period is determined to be a safety risk; According to the formula Calculate the optical cable transmission quality assessment coefficient β of each optical cable in the target area corresponding to the current monitoring period i , w4, w5, w6 represent the coefficient factors corresponding to the set attenuation evaluation value, bandwidth evaluation value and signal-to-noise ratio evaluation value respectively; Compare the optical cable transmission quality assessment coefficient of each optical cable in the target area corresponding to the current monitoring period with the set optical cable transmission quality assessment coefficient threshold. If the optical cable transmission quality assessment coefficient of a certain optical cable corresponding to the current monitoring period is less than the set optical cable transmission quality assessment coefficient threshold, then the warning information of the optical cable corresponding to the current monitoring period is determined to be a transmission risk; Step 6: Execution: Based on the warning information of each optical cable in the target area corresponding to the current monitoring period, corresponding processing is performed.

2. The prefabricated optical cable operation analysis and early warning system based on DVS is characterized by: The DVS-based prefabricated optical cable operation analysis and early warning method applied to claim 1 comprises: The regional optical cable signal monitoring module is used to monitor the signal parameters of each optical cable in the target area in real time through the distributed optical fiber sensing technology DVS, and obtain the signal parameters of each optical cable in the target area corresponding to the current monitoring period; The regional optical cable signal analysis module is used to analyze the vibration evaluation value, temperature evaluation value and deformation evaluation value of each optical cable in the target area corresponding to the current monitoring period, and obtain a signal evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period; The regional optical cable performance monitoring module is used to monitor the performance parameters of each optical cable in the target area in real time, and obtain the performance parameters of each optical cable in the target area corresponding to the current monitoring period; The regional optical cable performance analysis module is used to analyze the attenuation evaluation value, bandwidth evaluation value and signal-to-noise ratio evaluation value of each optical cable in the target area corresponding to the current monitoring period, and obtain a set of performance evaluation parameters of each optical cable in the target area corresponding to the current monitoring period; The optical cable operation status analysis module is used to analyze the optical cable safety status evaluation coefficient and the optical cable transmission quality evaluation coefficient of each optical cable in the target area corresponding to the current monitoring period based on the signal evaluation parameter set and the performance evaluation parameter set of each optical cable in the target area corresponding to the current monitoring period, thereby analyzing the early warning information of each optical cable in the target area corresponding to the current monitoring period, and obtaining the early warning information of each optical cable in the target area corresponding to the current monitoring period; An execution terminal is used to perform corresponding processing based on the early warning information of each optical cable in the target area corresponding to the current monitoring period; The database is used to store the atmospheric temperature of the target area corresponding to the current monitoring period, store the optical cable outer sheath image corresponding to each abnormal type, and store the location information corresponding to each optical cable.

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