A method and device for monitoring line status of power distribution communication network based on digital twin

Abstract

The present invention discloses a distribution communication network line status monitoring method based on digital twin, which obtains the basic information of the target trunk optical cable and each distribution optical cable connected to the target trunk optical cable; analyzes the corridor state safety factor and soil environment safety factor corresponding to the target trunk optical cable, analyzes the signal attenuation coefficient, surface state safety factor and operating environment safety factor corresponding to each distribution optical cable; and analyzes the safety state coefficient of the target trunk optical cable. The safety states corresponding to the trunk optical cable and the distribution optical cable are analyzed and confirmed, which solves the problem that the current technology does not perform targeted monitoring and analysis according to the different states of the trunk optical cable and the distribution optical cable. By analyzing the signal attenuation corresponding to each distribution optical cable, the signal attenuation of the distribution optical cable is accurately understood, and the smoothness of the distribution communication network line during operation is also improved to a certain extent.

Description

Technical Field

[0001] The present invention relates to the field of power distribution communication technology, and in particular to a method and device for monitoring the line status of a power distribution communication network based on digital twins. Background Art

[0002] The distribution communication network lines include trunk optical cables and distribution optical cables. The trunk optical cables are the optical cables from the end office to the optical cross-connection box, while the distribution optical cables are the optical cables between the optical cross-connection box and the optical distribution box. In order to ensure the normal operation of the distribution communication network lines, it is necessary to monitor and analyze the trunk optical cables and distribution optical cables.

[0003] The current technology mainly monitors and analyzes the optical power of trunk optical cables and distribution optical cables, but does not conduct targeted monitoring and analysis based on the different states of trunk optical cables and distribution optical cables. Obviously, this analysis method has two problems:

[0004] First, the trunk optical cable is laid in the pipeline, so the state of the pipeline affects the safe operation of the trunk optical cable. The current technology does not analyze the state of the corridor and the soil environmental coefficient of the corridor, and thus cannot effectively guarantee the integrity and safety of the corridor, and also cannot effectively guarantee the integrity of the trunk optical cable, thereby unable to effectively guarantee the safety of the trunk optical cable during operation, and thus cannot improve the smoothness and stability of the distribution communication network line during operation.

[0005] Secondly, the signal attenuation that occurs when the distribution optical cable is accessed at the access port directly affects the signal strength of the distribution optical cable. The current technology does not analyze the signal attenuation coefficient of the distribution optical cable, and thus cannot accurately understand the signal attenuation of the distribution optical cable, thereby reducing the speed and signal strength of the subsequent distribution optical cable during operation, and at the same time, it is also impossible to effectively improve the efficiency and effectiveness of the distribution communication network line during operation.

[0006] In summary, it can be seen that the existing technology only monitors and analyzes the optical power of the trunk optical cable and the distribution optical cable, which is difficult to ensure the smoothness and stability of the distribution communication network during operation. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a method and device for monitoring the line status of a distribution communication network based on digital twins, and to analyze various states of the distribution communication network lines.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0009] A method for monitoring the line status of a power distribution communication network based on digital twins, comprising the steps of:

[0010] S1. Obtain the corridor status information, soil environment information and signal strength of the target trunk optical cable, obtain the signal strength, transmission speed, surface status image of each distribution optical cable connected to the target trunk optical cable, and the ambient temperature and humidity corresponding to each sub-distribution optical cable area;

[0011] S2. Analyze the safety factor of the pipe gallery state corresponding to the target trunk optical cable according to the pipe gallery state information, analyze the soil environment safety factor corresponding to the target trunk optical cable according to the soil environment information, analyze the signal attenuation coefficient corresponding to each distribution optical cable according to the signal strength of the target main pole optical cable and the signal strength and transmission speed of each distribution optical cable, analyze the surface state safety factor corresponding to each distribution optical cable according to the surface state image of each distribution optical cable, and analyze the operating environment safety factor corresponding to each distribution optical cable according to the ambient temperature and ambient humidity of each distribution optical cable;

[0012] S3. Analyze the safety status coefficient of the target trunk optical cable according to the corridor status safety factor and soil environment safety factor corresponding to the target trunk optical cable, and analyze the safety status coefficient of each distribution optical cable according to the signal attenuation coefficient, surface status safety factor and operating environment safety factor corresponding to each distribution optical cable. When the installation status coefficient of the target trunk optical cable or each distribution optical cable is lower than the safety status coefficient of the standard distribution optical cable, issue an early warning.

[0013] In order to solve the above technical problems, another technical solution adopted by the present invention is:

[0014] A distribution communication network line status monitoring device based on digital twin, including a trunk optical cable basic information acquisition module, a pipe gallery status information analysis module, a soil environment information analysis module, a distribution optical cable basic information acquisition module, a signal strength attenuation analysis module, a surface status information analysis module, an operating environment analysis module, a comprehensive safety analysis module, a display terminal and an optical cable management database;

[0015] The trunk optical cable basic information acquisition module is respectively connected to the pipe gallery state information analysis module, the soil environment information analysis module and the signal strength attenuation analysis module, the distribution optical cable basic information acquisition module is respectively connected to the signal strength attenuation analysis module, the surface state information analysis module and the operating environment analysis module, the display terminal is respectively connected to the pipe gallery state information analysis module, the soil environment information analysis module, the signal strength attenuation analysis module, the surface state information analysis module, the operating environment analysis module and the display terminal, and the optical cable management database is connected to the pipe gallery state information analysis module, the signal strength attenuation analysis module and the surface state information analysis module;

[0016] The trunk optical cable basic information collection module is used to collect the basic information of the target trunk optical cable, wherein the basic information of the target trunk optical cable includes the corridor status information, soil environment information and signal strength;

[0017] The pipe gallery status information analysis module is used to analyze the safety factor of the pipe gallery status corresponding to the target trunk optical cable;

[0018] Soil environment information analysis module, used to analyze the soil environment safety factor corresponding to the target trunk optical cable;

[0019] The basic information collection module of the distribution optical cable is used to collect the basic information of each distribution optical cable connected to the target trunk optical cable, wherein the basic information of each distribution optical cable includes signal strength, transmission speed, surface state image, and the ambient temperature and humidity corresponding to each sub-distribution optical cable area;

[0020] The signal strength attenuation analysis module is used to analyze the signal attenuation coefficient corresponding to each distribution optical cable according to the signal strength and transmission speed corresponding to the target trunk optical cable;

[0021] Surface state information analysis module, used to analyze the surface state safety factor corresponding to each distribution optical cable;

[0022] The operating environment analysis module is used to analyze the operating environment safety factor corresponding to each distribution optical cable;

[0023] Comprehensive safety analysis module, used to analyze the safety status coefficients corresponding to the target trunk optical cable and each distribution optical cable;

[0024] A display terminal is used to display warning information when the state of the target trunk optical cable or each distribution optical cable is in a dangerous state;

[0025] The optical cable management database is used to store the standard signal strength attenuation value corresponding to each transmission speed, the number of fiber branches corresponding to each distribution optical cable, the initial thickness corresponding to the target trunk optical cable corridor, and the winding state image set corresponding to the distribution optical cable.

[0026] The beneficial effects of the present invention are: a distribution communication network line status monitoring method and device based on digital twin, which collects and analyzes the status of the pipeline corridor corresponding to the trunk optical cable and the soil environment information, and collects and analyzes the signal strength attenuation, surface status and operating environment corresponding to the distribution optical cable, and then analyzes and confirms the safety status corresponding to the trunk optical cable and the distribution optical cable, which solves the problem that the current technology does not perform targeted monitoring and analysis according to the different states of the trunk optical cable and the distribution optical cable, and realizes the intelligent monitoring and analysis of the trunk optical cable and the distribution optical cable, effectively ensuring the safety of the trunk optical cable and the distribution optical cable during operation, and also greatly improves the smoothness and stability of the distribution communication network line during operation, by analyzing the signal attenuation corresponding to each distribution optical cable, the signal attenuation of the distribution optical cable is accurately understood, thereby greatly ensuring the speed and signal strength of the subsequent distribution optical cable during operation, and to a certain extent, also improving the smoothness of the distribution communication network line during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of a flow chart of a method for monitoring the line status of a power distribution communication network based on digital twins according to an embodiment of the present invention;

[0028] Figure 2 It is a structural schematic diagram of a distribution communication network line status monitoring device based on digital twin according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0030] Please refer to Figure 1 , a distribution communication network line status monitoring method based on digital twin, comprising the steps of:

[0031] S1. Obtain the corridor status information, soil environment information and signal strength of the target trunk optical cable, obtain the signal strength, transmission speed, surface status image of each distribution optical cable connected to the target trunk optical cable, and the ambient temperature and humidity corresponding to each sub-distribution optical cable area;

[0032] S2. Analyze the safety factor of the pipe gallery state corresponding to the target trunk optical cable according to the pipe gallery state information, analyze the soil environment safety factor corresponding to the target trunk optical cable according to the soil environment information, analyze the signal attenuation coefficient corresponding to each distribution optical cable according to the signal strength of the target main pole optical cable and the signal strength and transmission speed of each distribution optical cable, analyze the surface state safety factor corresponding to each distribution optical cable according to the surface state image of each distribution optical cable, and analyze the operating environment safety factor corresponding to each distribution optical cable according to the ambient temperature and ambient humidity of each distribution optical cable;

[0033] S3. Analyze the safety status coefficient of the target trunk optical cable according to the corridor status safety factor and soil environment safety factor corresponding to the target trunk optical cable, and analyze the safety status coefficient of each distribution optical cable according to the signal attenuation coefficient, surface status safety factor and operating environment safety factor corresponding to each distribution optical cable. When the installation status coefficient of the target trunk optical cable or each distribution optical cable is lower than the safety status coefficient of the standard distribution optical cable, issue an early warning.

[0034] From the above description, it can be seen that the beneficial effects of the present invention are: a distribution communication network line status monitoring method and device based on digital twin, by collecting and analyzing the status of the pipeline corridor corresponding to the trunk optical cable and the soil environment information, and collecting and analyzing the signal strength attenuation, surface state and operating environment corresponding to the distribution optical cable, and then analyzing and confirming the safety status corresponding to the trunk optical cable and the distribution optical cable, which solves the problem that the current technology does not perform targeted monitoring and analysis according to the different states of the trunk optical cable and the distribution optical cable, and realizes the intelligent monitoring and analysis of the trunk optical cable and the distribution optical cable, effectively ensuring the safety of the trunk optical cable and the distribution optical cable during operation, and also greatly improving the smoothness and stability of the distribution communication network line during operation, by analyzing the signal attenuation corresponding to each distribution optical cable, the signal attenuation of the distribution optical cable is accurately understood, thereby greatly ensuring the speed and signal strength of the subsequent distribution optical cable during operation, and to a certain extent, also improving the smoothness of the distribution communication network line during operation.

[0035] Further, the analysis of the pipeline corridor state safety factor corresponding to the target trunk optical cable according to the pipeline corridor state information is specifically to calculate the pipeline corridor state safety factor of the target trunk optical cable according to the following formula:

[0036]

[0037] Where D i represents the thickness corresponding to the i-th monitoring point of the target trunk optical cable corridor, D is the initial thickness corresponding to the stored target trunk optical cable corridor, Q represents the number of damaged areas of the target trunk optical cable corridor, Q′ is the number of reference damaged areas of the corridor, S j It represents the area of ​​the jth damaged area of ​​the target trunk optical cable corridor, S′ is the area of ​​the damaged area of ​​the set reference corridor, ε1, ε2, and ε3 are the weight factors corresponding to the set corridor thickness, number of damaged areas, and area of ​​damaged areas, respectively, i represents the number corresponding to each monitoring point in the corridor, and j represents the number corresponding to each damaged area in the corridor.

[0038] From the above description, it can be seen that the calculation of the corridor status safety factor of the target trunk optical cable is achieved.

[0039] Further, the analyzing the soil environment safety factor corresponding to the target trunk optical cable according to the soil environment information is specifically to calculate the soil environment safety factor α corresponding to the target trunk optical cable according to the following formula:

[0040]

[0041] Where W b , pH b , R b They respectively represent the soil moisture content, soil pH, and soil resistivity corresponding to the b-th monitoring point of the target trunk optical cable corridor. W′, pH′, and R′ are the set reference soil moisture content, reference soil pH, and reference soil resistivity, respectively. γ1, γ2, and γ3 are the weight factors corresponding to the set soil moisture content, soil pH, and soil resistivity, respectively. η is the correction factor corresponding to the set soil environmental safety factor. b represents the number corresponding to each detection point.

[0042] From the above description, it can be seen that the soil environmental safety factor corresponding to the target trunk optical cable is calculated.

[0043] Further, the signal attenuation coefficient corresponding to each distribution optical cable is analyzed according to the signal strength of the target main pole optical cable and the signal strength and transmission speed of each distribution optical cable. Specifically, the transmission speed corresponding to each distribution optical cable is compared with the stored standard signal strength attenuation value corresponding to each transmission speed to obtain the standard signal strength attenuation value ΔQ corresponding to each distribution optical cable. g , g represents the number corresponding to each distribution optical cable, and the signal attenuation compliance coefficient β of the g-th distribution optical cable is calculated according to the following formula: g :

[0044]

[0045] In the formula, Q i Indicates the signal strength corresponding to the target trunk optical cable, r g is the number of fiber distribution cables corresponding to the g-th distribution cable stored in the database, Q′ g It is expressed as the signal strength corresponding to the g-th distribution optical cable, and λ is the correction factor corresponding to the set signal attenuation compliance coefficient.

[0046] From the above description, it can be seen that the calculation of the signal attenuation compliance coefficient of the distribution optical cable is achieved.

[0047] Furthermore, the analysis of the surface state safety factor corresponding to each distribution optical cable according to the surface state image of each distribution optical cable is specifically:

[0048] Calculate the surface condition safety factor of the g-th distribution optical cable according to the following formula

[0049]

[0050] Where, d g represents the number of cracks corresponding to the g-th distribution cable, S gh represents the area corresponding to the hth crack in the gth distribution optical cable, d′ is the set reference crack number, S″ is the set reference crack area, σ1, σ2, σ3 are the weight factors corresponding to the set distribution optical cable crack number, crack area, and first surface state compliance coefficient, respectively, h represents the number corresponding to each crack, φ gu is the first surface state compliance coefficient corresponding to the u-th sub-distribution optical cable region of the g-th distribution optical cable.

[0051] From the above description, it can be seen that the calculation of the surface condition safety factor of the distribution optical cable is achieved.

[0052] Furthermore, the first surface state corresponding to the u-th sub-distribution cable area of ​​the g-th distribution cable meets the coefficient φ gu Obtained by the following method:

[0053] According to the surface state image corresponding to the g-th distribution optical cable, the surface state images corresponding to each sub-distribution optical cable area in the g-th distribution optical cable are obtained, and the surface state images corresponding to each sub-distribution optical cable area in the g-th distribution optical cable are matched with the winding state image set corresponding to the stored distribution optical cable.

[0054] If the surface state image corresponding to the u-th sub-distribution optical cable area is the same as a certain distribution optical cable winding state image in the distribution optical cable winding state image set, then it is determined that the optical cable corresponding to the u-th sub-distribution optical cable area is in a winding state, φ gu is a1;

[0055] If the surface state image corresponding to the u-th sub-distribution cable area is different from the set of distribution cable winding state images, then it is determined that the optical cable corresponding to the u-th sub-distribution cable area is not in a winding state, φ gu is a2;

[0056] a2>a1.

[0057] It can be seen from the above description that the calculation of the first surface state compliance coefficient is achieved.

[0058] Further, the analysis of the operating environment safety factor corresponding to each distribution optical cable according to the ambient temperature and ambient humidity of each distribution optical cable is specifically to calculate the operating environment safety factor of the g-th distribution optical cable according to the following formula:

[0059]

[0060] Where, T gu , SD gu They respectively represent the ambient temperature and ambient humidity corresponding to the u-th sub-distribution optical cable area in the g-th distribution optical cable, T′ and SD′ are the set standard ambient temperature and standard ambient humidity for the distribution optical cable operation, τ1 and τ2 are the weight factors corresponding to the set ambient temperature and ambient humidity, and ζ is the correction factor corresponding to the set operating environment safety compliance index.

[0061] From the above description, it can be seen that the calculation of the operating environment safety factor of the distribution optical cable is achieved.

[0062] Further, the analysis of the safety state coefficient of the target trunk optical cable according to the corridor state safety factor and the soil environment safety factor corresponding to the target trunk optical cable is specifically to calculate the safety state coefficient ξ corresponding to the target trunk optical cable according to the following formula:

[0063]

[0064] In the formula, is the corridor state safety factor of the target trunk optical cable, α is the soil environment safety factor corresponding to the target trunk optical cable, ω1 and ω2 are the weight factors corresponding to the set corridor state safety factor and soil environment safety factor respectively.

[0065] From the above description, it can be seen that the calculation of the safety state coefficient corresponding to the target trunk optical cable is achieved.

[0066] Furthermore, the analysis based on the signal attenuation coefficient, surface state safety factor and operating environment safety factor corresponding to each distribution optical cable is specifically performed by calculating the safety state coefficient ψ corresponding to each distribution optical cable according to the following formula: g :

[0067]

[0068] In the formula, β g is the signal attenuation compliance coefficient of the g-th distribution optical cable, is the operating environment safety factor corresponding to the distribution optical cable of the g-th distribution optical cable, is the surface state safety factor of the g-th distribution optical cable, κ1, κ2, κ3 are the weight factors corresponding to the set signal attenuation compliance coefficient, surface state safety factor, and operating environment safety factor, respectively, and e is a natural constant.

[0069] From the above description, it can be seen that the calculation of the safety state coefficient corresponding to the distribution optical cable is achieved.

[0070] A distribution communication network line status monitoring device based on digital twin, including a trunk optical cable basic information acquisition module, a pipe gallery status information analysis module, a soil environment information analysis module, a distribution optical cable basic information acquisition module, a signal strength attenuation analysis module, a surface status information analysis module, an operating environment analysis module, a comprehensive safety analysis module, a display terminal and an optical cable management database;

[0071] The trunk optical cable basic information acquisition module is respectively connected to the pipe gallery state information analysis module, the soil environment information analysis module and the signal strength attenuation analysis module, the distribution optical cable basic information acquisition module is respectively connected to the signal strength attenuation analysis module, the surface state information analysis module and the operating environment analysis module, the display terminal is respectively connected to the pipe gallery state information analysis module, the soil environment information analysis module, the signal strength attenuation analysis module, the surface state information analysis module, the operating environment analysis module and the display terminal, and the optical cable management database is connected to the pipe gallery state information analysis module, the signal strength attenuation analysis module and the surface state information analysis module;

[0072] The trunk optical cable basic information collection module is used to collect the basic information of the target trunk optical cable, wherein the basic information of the target trunk optical cable includes the corridor status information, soil environment information and signal strength;

[0073] The pipe gallery status information analysis module is used to analyze the safety factor of the pipe gallery status corresponding to the target trunk optical cable;

[0074] Soil environment information analysis module, used to analyze the soil environment safety factor corresponding to the target trunk optical cable;

[0075] The basic information collection module of the distribution optical cable is used to collect the basic information of each distribution optical cable connected to the target trunk optical cable, wherein the basic information of each distribution optical cable includes signal strength, transmission speed, surface state image, and the ambient temperature and humidity corresponding to each sub-distribution optical cable area;

[0076] The signal strength attenuation analysis module is used to analyze the signal attenuation coefficient corresponding to each distribution optical cable according to the signal strength and transmission speed corresponding to the target trunk optical cable;

[0077] Surface state information analysis module, used to analyze the surface state safety factor corresponding to each distribution optical cable;

[0078] The operating environment analysis module is used to analyze the operating environment safety factor corresponding to each distribution optical cable;

[0079] Comprehensive safety analysis module, used to analyze the safety status coefficients corresponding to the target trunk optical cable and each distribution optical cable;

[0080] A display terminal is used to display warning information when the state of the target trunk optical cable or each distribution optical cable is in a dangerous state;

[0081] The optical cable management database is used to store the standard signal strength attenuation value corresponding to each transmission speed, the number of fiber branches corresponding to each distribution optical cable, the initial thickness corresponding to the target trunk optical cable corridor, and the winding state image set corresponding to the distribution optical cable.

[0082] From the above description, it can be seen that the beneficial effects of the present invention are: a distribution communication network line status monitoring method and device based on digital twin, by collecting and analyzing the status of the pipeline corridor corresponding to the trunk optical cable and the soil environment information, and collecting and analyzing the signal strength attenuation, surface state and operating environment corresponding to the distribution optical cable, and then analyzing and confirming the safety status corresponding to the trunk optical cable and the distribution optical cable, which solves the problem that the current technology does not perform targeted monitoring and analysis according to the different states of the trunk optical cable and the distribution optical cable, and realizes the intelligent monitoring and analysis of the trunk optical cable and the distribution optical cable, effectively ensuring the safety of the trunk optical cable and the distribution optical cable during operation, and also greatly improving the smoothness and stability of the distribution communication network line during operation, by analyzing the signal attenuation corresponding to each distribution optical cable, the signal attenuation of the distribution optical cable is accurately understood, thereby greatly ensuring the speed and signal strength of the subsequent distribution optical cable during operation, and to a certain extent, also improving the smoothness of the distribution communication network line during operation.

[0083] The present invention is used to monitor and confirm the status of a power distribution communication network to ensure smooth operation of the power distribution communication network.

[0084] Please refer to Figure 1 , Embodiment 1 of the present invention is:

[0085] A method for monitoring the line status of a power distribution communication network based on digital twins, comprising the steps of:

[0086] S1. Obtain the corridor status information, soil environment information and signal strength of the target trunk optical cable, obtain the signal strength, transmission speed, surface status image of each distribution optical cable connected to the target trunk optical cable, and the ambient temperature and humidity corresponding to each sub-distribution optical cable area;

[0087] S2. Analyze the safety factor of the pipe gallery state corresponding to the target trunk optical cable according to the pipe gallery state information, analyze the soil environment safety factor corresponding to the target trunk optical cable according to the soil environment information, analyze the signal attenuation coefficient corresponding to each distribution optical cable according to the signal strength of the target main pole optical cable and the signal strength and transmission speed of each distribution optical cable, analyze the surface state safety factor corresponding to each distribution optical cable according to the surface state image of each distribution optical cable, and analyze the operating environment safety factor corresponding to each distribution optical cable according to the ambient temperature and ambient humidity of each distribution optical cable;

[0088] S3. Analyze the safety status coefficient of the target trunk optical cable according to the corridor status safety factor and soil environment safety factor corresponding to the target trunk optical cable, and analyze the safety status coefficient of each distribution optical cable according to the signal attenuation coefficient, surface status safety factor and operating environment safety factor corresponding to each distribution optical cable. When the installation status coefficient of the target trunk optical cable or each distribution optical cable is lower than the safety status coefficient of the standard distribution optical cable, issue an early warning.

[0089] In this embodiment, the tunnel status information includes the number of damaged areas, the area corresponding to each damaged area, and the thickness corresponding to each monitoring point in the tunnel;

[0090] The analysis of the pipe gallery status safety factor corresponding to the target trunk optical cable according to the pipe gallery status information is specifically:

[0091] Substitute the thickness corresponding to each monitoring point of the target trunk optical cable corridor, the number of damaged areas, and the area corresponding to each damaged area into the calculation formula:

[0092]

[0093] In the formula, is the safety factor of the tunnel state corresponding to the target trunk optical cable, D i It is represented by the thickness corresponding to the i-th monitoring point of the target trunk optical cable corridor, D is the initial thickness corresponding to the target trunk optical cable corridor stored in the optical cable management database, Q is the number of damaged areas corresponding to the target trunk optical cable corridor, Q′ is the number of reference damaged areas of the corridor, S j It represents the area corresponding to the jth damaged area of ​​the target trunk optical cable corridor, S′ represents the area corresponding to the set damaged area of ​​the reference corridor, ε1, ε2, and ε3 represent the weight factors corresponding to the set corridor thickness, number of damaged areas, and area of ​​damaged areas, respectively, i represents the number corresponding to each monitoring point in the corridor, i=1,2...n, j represents the number corresponding to each damaged area in the corridor, j=1,2...m.

[0094] Soil environmental information includes soil moisture content, soil pH and soil resistivity corresponding to each detection point;

[0095] The analysis of the soil environment safety factor corresponding to the target trunk optical cable according to the soil environment information is specifically as follows:

[0096] The soil environmental safety factor α corresponding to the target trunk optical cable is calculated based on the soil moisture content, soil pH and soil resistivity corresponding to each detection point of the target trunk optical cable:

[0097]

[0098] Where W b , pH b , R b They respectively represent the soil moisture content, soil pH, and soil resistivity corresponding to the b-th monitoring point of the target trunk optical cable corridor. W′, pH′, and R′ are the set reference soil moisture content, reference soil pH, and reference soil resistivity, respectively. γ1, γ2, and γ3 are the weight factors corresponding to the set soil moisture content, soil pH, and soil resistivity, respectively. η is the correction factor corresponding to the set soil environmental safety factor. b represents the number corresponding to each detection point, and b=1,2......y.

[0099] The specific analysis of the signal attenuation coefficient corresponding to each distribution optical cable according to the signal strength of the target main pole optical cable and the signal strength and transmission speed of each distribution optical cable is:

[0100] The transmission speed corresponding to each distribution optical cable is compared with the standard signal strength attenuation value corresponding to each transmission speed stored in the optical cable management database to obtain the standard signal strength attenuation value corresponding to each distribution optical cable, and recorded as ΔQ g , where g represents the number corresponding to each distribution optical cable, g = 1, 2...f;

[0101] Calculate the signal attenuation compliance coefficient β corresponding to each distribution optical cable according to the following formula g :

[0102]

[0103] In the formula, Q i Indicates the signal strength corresponding to the target trunk optical cable, r g is the number of fiber distribution cables corresponding to the g-th distribution cable stored in the database, Q′ g It is expressed as the signal strength corresponding to the g-th distribution optical cable, and λ is the correction factor corresponding to the set signal attenuation compliance coefficient.

[0104] The specific analysis of the surface state safety factor corresponding to each distribution optical cable according to the surface state image of each distribution optical cable is:

[0105] Based on the surface state images corresponding to each distribution optical cable, the surface state images corresponding to each sub-distribution optical cable area in each distribution optical cable are obtained, and then the surface state images corresponding to each sub-distribution optical cable area in each distribution optical cable are matched with the winding state image set corresponding to the distribution optical cables stored in the optical cable management database.

[0106] If the surface state image corresponding to a sub-distribution optical cable area in a distribution optical cable is the same as the winding state image of a distribution optical cable in the distribution optical cable winding state image set, then the optical cable corresponding to the sub-distribution optical cable area in the distribution optical cable is determined to be in a winding state, and the first surface state compliance coefficient corresponding to the sub-distribution optical cable area in the distribution optical cable is recorded as a1.

[0107] If the surface state image corresponding to a sub-distribution optical cable area in a distribution optical cable is different from the distribution optical cable winding state image set, it is determined that the optical cable corresponding to the sub-distribution optical cable area in the distribution optical cable is not in a winding state, and the first surface state compliance coefficient corresponding to the sub-distribution optical cable area in the distribution optical cable is recorded as a2.

[0108] In this way, the first surface state compliance coefficient φ corresponding to each sub-distribution cable area in each distribution cable is obtained. gu , where φ gu The value is a1 or a2, and a2>a1, u represents the number corresponding to each sub-distribution optical cable area, u=1,2......z.

[0109] The number of cracks corresponding to each distribution optical cable and the area corresponding to each crack are obtained from the surface state image corresponding to each distribution optical cable, and the surface state safety factor corresponding to each distribution optical cable is calculated by substituting into the following formula:

[0110]

[0111] Where, d g represents the number of cracks corresponding to the g-th distribution cable, S gh It represents the area corresponding to the hth crack in the gth distribution optical cable, d′ is the set reference crack number, S″ is the set reference crack area, σ1, σ2, σ3 are the weight factors corresponding to the set distribution optical cable crack number, crack area, and first surface state compliance coefficient, respectively, h represents the number corresponding to each crack, h=1,2……v.

[0112] The specific analysis of the operating environment safety factor corresponding to each distribution optical cable according to the ambient temperature and ambient humidity of each distribution optical cable is:

[0113] Calculate the operating environment safety factor corresponding to each distribution optical cable according to the following formula

[0114]

[0115] Where, T gu , SD gu They respectively represent the ambient temperature and ambient humidity corresponding to the u-th sub-distribution optical cable area in the g-th distribution optical cable, T′ and SD′ are the set standard ambient temperature and standard ambient humidity for the distribution optical cable operation, τ1 and τ2 are the weight factors corresponding to the set ambient temperature and ambient humidity, and ζ is the correction factor corresponding to the set operating environment safety compliance index.

[0116] The safety status factor of the target trunk optical cable is analyzed according to the corridor status safety factor and soil environment safety factor corresponding to the target trunk optical cable. The specific analysis is based on the signal attenuation coefficient, surface status safety factor and operating environment safety factor corresponding to each distribution optical cable:

[0117] Calculate the safety state coefficient ξ corresponding to the target trunk optical cable according to the following formula:

[0118]

[0119] In the formula, ω1 and ω2 are the weight factors corresponding to the set corridor state safety factor and soil environment safety factor respectively.

[0120] The safety state coefficient corresponding to the target trunk optical cable is compared with the set safety state coefficient of the standard trunk optical cable. If the safety state coefficient corresponding to the target trunk optical cable is greater than or equal to the safety state coefficient of the standard trunk optical cable, the state corresponding to the target trunk optical cable is determined to be in a safe state; otherwise, the state corresponding to the target trunk optical cable is determined to be in a dangerous state.

[0121] Calculate the safety status coefficient ψ corresponding to each distribution optical cable according to the following formula g :

[0122]

[0123] Where κ1, κ2, and κ3 are the weight factors corresponding to the set signal attenuation compliance coefficient, surface state safety factor, and operating environment safety factor, respectively, and e is a natural constant.

[0124] The safety state coefficient corresponding to each distribution optical cable is compared with the set safety state coefficient of the standard distribution optical cable. If the safety state coefficient corresponding to a distribution optical cable is greater than or equal to the safety state coefficient of the standard distribution optical cable, the state corresponding to the distribution optical cable is determined to be in a safe state. Otherwise, the state corresponding to the distribution optical cable is determined to be in a dangerous state. In this way, the safety state corresponding to each distribution optical cable is obtained.

[0125] Please refer to Figure 2 , Embodiment 2 of the present invention is:

[0126] A distribution communication network line status monitoring device based on digital twin, including a trunk optical cable basic information acquisition module, a pipe gallery status information analysis module, a soil environment information analysis module, a distribution optical cable basic information acquisition module, a signal strength attenuation analysis module, a surface status information analysis module, an operating environment analysis module, a comprehensive safety analysis module, a display terminal and an optical cable management database.

[0127] The trunk optical cable basic information acquisition module is respectively connected to the corridor status information analysis module, the soil environment information analysis module and the signal strength attenuation analysis module; the distribution optical cable basic information acquisition module is respectively connected to the signal strength attenuation analysis module, the surface status information analysis module and the operating environment analysis module; the display terminal is respectively connected to the corridor status information analysis module, the soil environment information analysis module, the signal strength attenuation analysis module, the surface status information analysis module, the operating environment analysis module and the display terminal; the optical cable management database is connected to the corridor status information analysis module, the signal strength attenuation analysis module and the surface status information analysis module.

[0128] The trunk optical cable basic information collection module is used to collect the basic information of the target trunk optical cable, wherein the basic information of the target trunk optical cable includes the corridor status information, soil environment information and signal strength.

[0129] The tunnel status information includes the number of damaged areas, the area corresponding to each damaged area and the thickness corresponding to each monitoring point of the tunnel. The soil environment information includes the soil moisture content, soil pH and soil resistivity corresponding to each detection point.

[0130] Specifically, each monitoring point of the target trunk optical cable is arranged at intervals of preset lengths, and then the thickness of each monitoring point of the target trunk optical cable corresponding to the corridor is collected by an X-ray scanner to obtain the thickness corresponding to each monitoring point of the corridor.

[0131] The trunk optical cable basic information acquisition module is connected to each X-ray scanner, so that the image of the pipeline corridor corresponding to the target trunk optical cable is collected through the X-ray scanner, and then the number of damaged areas in the pipeline corridor and the area corresponding to each damaged area are obtained.

[0132] The soil area in the tunnel is arranged with various detection points according to a preset length, and then the corresponding soil moisture content, soil acidity and soil resistivity in the soil of each detection point are collected respectively by a soil moisture meter, a soil pH analyzer and a soil resistivity tester. The trunk optical cable basic information collection module is connected to each soil moisture meter, soil pH analyzer and soil resistivity tester, so as to obtain the soil moisture content, soil acidity and soil resistivity of each detection point of the target trunk optical cable.

[0133] The present invention collects basic information corresponding to the target trunk optical cable, lays the foundation for subsequent trunk optical cable corridor status analysis and soil environmental safety analysis, effectively ensures the integrity and safety of the corridor, and further effectively ensures the integrity of the trunk optical cable, thereby effectively ensuring the safety of the trunk optical cable during operation, and to a certain extent also improves the stability of the distribution communication network line during operation.

[0134] The pipeline gallery status information analysis module is used to analyze the pipeline gallery status safety factor corresponding to the target trunk optical cable.

[0135] The soil environment information analysis module is used to analyze the soil environment safety factor corresponding to the target trunk optical cable.

[0136] The basic information collection module for distribution optical cables is used to collect the basic information of each distribution optical cable connected to the target trunk optical cable, wherein the basic information of each distribution optical cable includes signal strength, transmission speed, surface state image, and the ambient temperature and humidity corresponding to each sub-distribution optical cable area.

[0137] Specifically, the signal strength of each distribution optical cable access end is collected by an optical cable tester to obtain the signal strength corresponding to each distribution optical cable, and the transmission speed of each distribution optical cable access end is collected by an optical cable speed meter to obtain the transmission speed corresponding to each distribution optical cable.

[0138] The surface state image of each distribution optical cable is collected by an X-ray scanner to obtain the surface state image corresponding to each distribution optical cable, and each distribution optical cable is divided into sub-distribution optical cable areas according to preset length intervals, and then a collection point is set in each sub-distribution optical cable area of ​​each distribution optical cable.

[0139] The ambient temperature and humidity corresponding to the collection points of each sub-distribution optical cable area in each distribution optical cable are collected by temperature sensors and humidity sensors respectively, so as to obtain the ambient temperature and humidity corresponding to each sub-distribution optical cable area in each distribution optical cable.

[0140] The basic information acquisition module for the distribution optical cables is connected to each X-ray scanner, optical cable tester and optical cable speed meter to acquire the basic information of each distribution optical cable.

[0141] The present invention collects basic information of each distribution optical cable, lays the foundation for subsequent distribution optical cable signal strength attenuation analysis, surface state information analysis and operating environment analysis, effectively ensures the reliability and reference of the subsequent distribution optical cable signal strength attenuation analysis, surface state information analysis and operating environment analysis results, and thus effectively ensures the safety of the distribution optical cable status, greatly improves the operating effect of the distribution optical cable, and effectively improves the efficiency and effect of the distribution communication network line during operation.

[0142] The signal strength attenuation analysis module is used to analyze the signal attenuation coefficient corresponding to each distribution optical cable according to the signal strength and transmission speed corresponding to the target trunk optical cable.

[0143] The embodiment of the present invention analyzes the signal attenuation coefficient corresponding to each distribution optical cable, accurately understands the signal attenuation of the distribution optical cable, thereby greatly ensuring the speed and signal strength of the subsequent distribution optical cable during operation, and to a certain extent also improving the smoothness of the distribution communication network line during operation.

[0144] The surface state information analysis module is used to analyze the surface state safety factor corresponding to each distribution optical cable.

[0145] The operating environment analysis module is used to analyze the operating environment safety factor corresponding to each distribution optical cable.

[0146] The comprehensive safety analysis module is used to analyze and confirm the safety status coefficients corresponding to the target trunk optical cable and each distribution optical cable.

[0147] The display terminal is used to display warning information when the status of the target trunk optical cable or the corresponding status of each distribution optical cable is in a dangerous state.

[0148] The optical cable management database is used to store the standard signal strength attenuation value corresponding to each transmission speed, the number of fiber branches corresponding to each distribution optical cable, the initial thickness corresponding to the target trunk optical cable corridor, and the winding state image set corresponding to the distribution optical cable.

[0149] To summarize, the present invention provides a distribution communication network line status monitoring method and device based on digital twin, which collects and analyzes the status of the pipeline corridor corresponding to the trunk optical cable and the soil environment information, and collects and analyzes the signal strength attenuation, surface status and operating environment corresponding to the distribution optical cable, and then analyzes and confirms the safety status corresponding to the trunk optical cable and the distribution optical cable, which solves the problem that the current technology does not perform targeted monitoring and analysis according to the different states of the trunk optical cable and the distribution optical cable, and realizes the intelligent monitoring and analysis of the trunk optical cable and the distribution optical cable, effectively ensuring the safety of the trunk optical cable and the distribution optical cable during operation, and also greatly improves the smoothness and stability of the distribution communication network line during operation, by analyzing the signal attenuation corresponding to each distribution optical cable, the signal attenuation of the distribution optical cable is accurately understood, thereby greatly ensuring the speed and signal strength of the subsequent distribution optical cable during operation, and to a certain extent, also improving the smoothness of the distribution communication network line during operation.

[0150] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A distribution communication network line status monitoring method based on digital twin, characterized in that: Includes steps: S1. Obtain the corridor status information, soil environment information and signal strength of the target trunk optical cable, obtain the signal strength, transmission speed, surface status image of each distribution optical cable connected to the target trunk optical cable, and the ambient temperature and humidity corresponding to each sub-distribution optical cable area; S2. Analyze the safety factor of the pipe gallery state corresponding to the target trunk optical cable according to the pipe gallery state information, analyze the soil environment safety factor corresponding to the target trunk optical cable according to the soil environment information, analyze the signal attenuation coefficient corresponding to each distribution optical cable according to the signal strength of the target main pole optical cable and the signal strength and transmission speed of each distribution optical cable, analyze the surface state safety factor corresponding to each distribution optical cable according to the surface state image of each distribution optical cable, and analyze the operating environment safety factor corresponding to each distribution optical cable according to the ambient temperature and ambient humidity of each distribution optical cable; S3. Analyze the safety status coefficient of the target trunk optical cable according to the corridor status safety coefficient and soil environment safety coefficient corresponding to the target trunk optical cable, and analyze the safety status coefficient corresponding to each distribution optical cable according to the signal attenuation coefficient, surface status safety coefficient and operating environment safety factor corresponding to each distribution optical cable. When the installation status coefficient corresponding to the target trunk optical cable or each distribution optical cable is lower than the safety status coefficient of the standard distribution optical cable, issue an early warning; The specific analysis of the safety status coefficient of the target trunk optical cable according to the corridor status safety coefficient and the soil environment safety coefficient corresponding to the target trunk optical cable is: Calculate the safety status coefficient corresponding to the target trunk optical cable according to the following formula : ； In the formula, is the safety factor of the corridor status of the target trunk optical cable, is the soil environmental safety factor corresponding to the target trunk optical cable, , They are the weight factors corresponding to the set safety factor of the pipeline corridor status and the safety factor of the soil environment; The specific analysis of the safety state coefficient corresponding to each distribution optical cable according to the signal attenuation coefficient, surface state safety factor and operating environment safety factor corresponding to each distribution optical cable is: Calculate the safety status coefficient corresponding to each distribution optical cable according to the following formula : ； In the formula, is the signal attenuation compliance coefficient of the g-th distribution optical cable, is the operating environment safety factor corresponding to the distribution optical cable of the g-th distribution optical cable, is the surface condition safety factor of the g-th distribution optical cable, , , are the weight factors corresponding to the set signal attenuation compliance coefficient, surface state safety factor, and operating environment safety factor, and e is a natural constant.

2. A method for monitoring the line status of a power distribution communication network based on digital twin according to claim 1, characterized in that: The specific analysis of the pipe gallery status safety factor corresponding to the target trunk optical cable according to the pipe gallery status information is as follows: Calculate the safety factor of the target trunk optical cable corridor status according to the following formula: : ； In the formula, represents the thickness corresponding to the i-th monitoring point of the target trunk optical cable corridor, is the initial thickness of the stored target trunk optical cable gallery, Indicates the number of damaged areas in the target trunk optical cable gallery. is the number of reference damaged areas of the set corridor, represents the area of ​​the jth damaged area of ​​the target trunk optical cable corridor, is the area of ​​the damaged area of ​​the reference corridor, , , are the weight factors corresponding to the set thickness of the corridor, the number of damaged areas, and the area of ​​damaged areas, respectively; i represents the number corresponding to each monitoring point in the corridor; j represents the number corresponding to each damaged area in the corridor.

3. A method for monitoring the line status of a power distribution communication network based on digital twin according to claim 1, characterized in that: The analysis of the soil environment safety factor corresponding to the target trunk optical cable according to the soil environment information is specifically as follows: Calculate the soil environmental safety factor corresponding to the target trunk optical cable according to the following formula : ； In the formula, , , They represent the soil moisture content, soil pH, and soil resistivity corresponding to the bth monitoring point of the target trunk optical cable corridor, respectively. , , They are the reference soil moisture content, reference soil pH, and reference soil resistivity. , , are the weight factors corresponding to the set soil moisture content, soil pH, and soil resistivity, respectively. is the correction factor corresponding to the set soil environmental safety factor, and b represents the number corresponding to each test point.

4. A method for monitoring the line status of a power distribution communication network based on digital twin according to claim 1, characterized in that: The specific analysis of the signal attenuation coefficient corresponding to each distribution optical cable according to the signal strength of the target main pole optical cable and the signal strength and transmission speed of each distribution optical cable is: Compare the transmission speed corresponding to each distribution optical cable with the stored standard signal strength attenuation value corresponding to each transmission speed to obtain the standard signal strength attenuation value corresponding to each distribution optical cable , g represents the number corresponding to each distribution optical cable, and the signal attenuation compliance coefficient of the g-th distribution optical cable is calculated according to the following formula: : ； In the formula, Indicates the signal strength corresponding to the target trunk optical cable. is the number of fiber splitters corresponding to the g-th distribution cable stored in the database, It is expressed as the signal strength corresponding to the g-th distribution optical cable, It is the correction factor corresponding to the set signal attenuation coefficient.

5. A method for monitoring the line status of a power distribution communication network based on digital twin according to claim 1, characterized in that: The specific analysis of the surface state safety factor corresponding to each distribution optical cable according to the surface state image of each distribution optical cable is: Calculate the surface condition safety factor of the g-th distribution optical cable according to the following formula : ； In the formula, represents the number of cracks corresponding to the g-th distribution cable, represents the area corresponding to the hth crack in the gth distribution cable, is the set reference crack number, is the set reference crack area, , , are the weight factors corresponding to the set number of cracks in the distribution optical cable, the crack area, and the first surface state compliance coefficient, and h represents the number corresponding to each crack. is the first surface state compliance coefficient corresponding to the u-th sub-distribution optical cable region of the g-th distribution optical cable.

6. A method for monitoring the line status of a power distribution communication network based on digital twins according to claim 5, characterized in that: The first surface state corresponding to the u-th sub-distribution cable area of ​​the g-th distribution cable meets the coefficient Obtained by the following method: According to the surface state image corresponding to the g-th distribution optical cable, the surface state images corresponding to each sub-distribution optical cable area in the g-th distribution optical cable are obtained, and the surface state images corresponding to each sub-distribution optical cable area in the g-th distribution optical cable are matched with the winding state image set corresponding to the stored distribution optical cable. If the surface state image corresponding to the u-th sub-distribution optical cable area is the same as a certain distribution optical cable winding state image in the distribution optical cable winding state image set, then it is determined that the optical cable corresponding to the u-th sub-distribution optical cable area is in a winding state. is a1; If the surface state image corresponding to the u-th sub-distribution optical cable area is different from the set of distribution optical cable winding state images, it is determined that the optical cable corresponding to the u-th sub-distribution optical cable area is not in a winding state. is a2; a2>a1.

7. A method for monitoring the line status of a power distribution communication network based on digital twin according to claim 1, characterized in that: The analysis of the operating environment safety factor corresponding to each distribution optical cable according to the ambient temperature and ambient humidity of each distribution optical cable is specifically to calculate the operating environment safety factor of the g-th distribution optical cable according to the following formula: : ； In the formula, , They represent the ambient temperature and humidity corresponding to the uth sub-distribution cable area in the gth distribution cable, respectively. , They are the standard ambient temperature and humidity for the operation of the wiring optical cable. , They are the weight factors corresponding to the set ambient temperature and ambient humidity, It is the correction factor corresponding to the set operating environment safety compliance index.

8. A distribution communication network line status monitoring device based on digital twin, characterized in that: It includes the basic information collection module of trunk optical cable, the status information analysis module of pipe gallery, the soil environment information analysis module, the basic information collection module of distribution optical cable, the signal strength attenuation analysis module, the surface status information analysis module, the operation environment analysis module, the comprehensive safety analysis module, the display terminal and the optical cable management database; The trunk optical cable basic information acquisition module is respectively connected to the pipe gallery state information analysis module, the soil environment information analysis module and the signal strength attenuation analysis module, the distribution optical cable basic information acquisition module is respectively connected to the signal strength attenuation analysis module, the surface state information analysis module and the operating environment analysis module, the display terminal is respectively connected to the pipe gallery state information analysis module, the soil environment information analysis module, the signal strength attenuation analysis module, the surface state information analysis module, the operating environment analysis module and the display terminal, and the optical cable management database is connected to the pipe gallery state information analysis module, the signal strength attenuation analysis module and the surface state information analysis module; The trunk optical cable basic information collection module is used to collect the basic information of the target trunk optical cable, wherein the basic information of the target trunk optical cable includes the corridor status information, soil environment information and signal strength; The pipe gallery status information analysis module is used to analyze the safety factor of the pipe gallery status corresponding to the target trunk optical cable; Soil environment information analysis module, used to analyze the soil environment safety factor corresponding to the target trunk optical cable; The basic information collection module of the distribution optical cable is used to collect the basic information of each distribution optical cable connected to the target trunk optical cable, wherein the basic information of each distribution optical cable includes signal strength, transmission speed, surface state image, and the ambient temperature and humidity corresponding to each sub-distribution optical cable area; The signal strength attenuation analysis module is used to analyze the signal attenuation coefficient corresponding to each distribution optical cable according to the signal strength and transmission speed corresponding to the target trunk optical cable; Surface state information analysis module, used to analyze the surface state safety factor corresponding to each distribution optical cable; The operating environment analysis module is used to analyze the operating environment safety factor corresponding to each distribution optical cable; Comprehensive safety analysis module, used to analyze the safety status coefficients corresponding to the target trunk optical cable and each distribution optical cable; A display terminal is used to display warning information when the state of the target trunk optical cable or each distribution optical cable is in a dangerous state; The optical cable management database is used to store the standard signal strength attenuation value corresponding to each transmission speed, the number of fiber branches corresponding to each distribution optical cable, the initial thickness corresponding to the target trunk optical cable corridor, and the winding state image set corresponding to the distribution optical cable.

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