Ice melting method, device and system of OPGW (Optical Fiber Composite Overhead Ground Wire) and storage medium

Abstract

The invention relates to the technical field of optical cable communication, and discloses an ice melting method, device and system for an OPGW (Optical Fiber Composite Overhead Ground Wire) optical cable and a storage medium, which are used for guaranteeing the system safety and the communication quality stability in the optical cable ice melting process. The ice melting method of the OPGW optical cable comprises the following steps: monitoring the temperature of a fiber core in the OPGW optical cable to obtain temperature data; monitoring the loss of a fiber core in the OPGW optical cable to obtain loss data; evaluating the health state of the OPGW optical cable based on the temperature data and the loss data; if the OPGW optical cable is in the healthy state, obtaining icing information of the OPGW optical cable; and according to the temperature data and the icing information, determining an ice melting current, and based on the ice melting current, performing ice melting on the OPGW optical cable.

Description

Technical Field

[0001] The present invention relates to the field of optical cable communication technology, and in particular to an ice-melting method, device, system and storage medium for an OPGW optical cable. Background Art

[0002] Optical fiber composite overhead ground wire (OPGW) optical cable has the dual functions of grounding and communication. At present, in areas where ice disasters frequently occur, the demand for de-icing of OPGW ground wires is gradually increasing. However, the means of monitoring the line temperature and temperature rise during the de-icing process of the ground wire are still insufficient. The existing method judges the operating status of the optical cable by the temperature of the optical cable core, thereby adjusting the current of the optical cable de-icing. The technical means of reflecting the actual de-icing status of the optical cable by the core temperature is too single, and other parameters that may affect the safety and quality of optical cable communications are ignored, resulting in the inability to effectively guarantee the system safety and communication quality during the de-icing process. Summary of the invention

[0003] The present invention provides an OPGW optical cable ice-melting method, device, system and storage medium to solve the problem in the prior art that the system safety and communication quality in the optical cable ice-melting process cannot be effectively guaranteed.

[0004] A first aspect of the present invention provides an ice-melting method for an OPGW optical cable, comprising: monitoring the temperature of a fiber core in the OPGW optical cable to obtain temperature data; monitoring the loss of the fiber core in the OPGW optical cable to obtain loss data; evaluating the health status of the OPGW optical cable based on the temperature data and the loss data; if the OPGW optical cable is in a healthy state, obtaining ice coating information of the OPGW optical cable; determining an ice-melting current according to the temperature data and the ice coating information, and melting the ice of the OPGW optical cable based on the ice-melting current.

[0005] In a feasible implementation manner, the monitoring of the loss of the fiber core in the OPGW optical cable to obtain loss data includes: testing the fiber core of the OPGW optical cable using an optical time domain reflectometer to generate a line loss curve graph; reading the end loss value in the line loss curve graph to obtain the total line loss; identifying steps or reflection peaks in the line loss curve graph to obtain loss events.

[0006] In a feasible implementation manner, the evaluating the health status of the OPGW optical cable based on the temperature data and the loss data includes: comparing the temperature data with the minimum safe temperature and the maximum safe temperature to obtain a first comparison result; comparing the total line loss with the maximum allowable loss to obtain a second comparison result; comparing the number of loss events with the maximum allowable number to obtain a third comparison result; and evaluating the health status of the OPGW optical cable based on the first comparison result, the second comparison result, and the third comparison result.

[0007] In a feasible implementation manner, the health status of the OPGW optical cable is evaluated based on the first comparison result, the second comparison result, and the third comparison result, including: if the first comparison result is that the temperature data is less than the minimum safe temperature or greater than the maximum safe temperature, and the second comparison result is that the total line loss is greater than the maximum allowable loss or the number of loss events is greater than the maximum allowable number, then it is determined that the OPGW optical cable is in an unhealthy state. If the first comparison result is that the temperature data is not less than the minimum safe temperature and not greater than the maximum safe temperature, the second comparison result is that the total line loss is not greater than the maximum allowable loss, and the third comparison result is that the number of loss events is not greater than the maximum allowable number, then it is determined that the OPGW optical cable is in a healthy state.

[0008] In a feasible implementation manner, the evaluating the health status of the optical cable based on the temperature data and the loss data includes: inputting the temperature data, the loss data and a preset safety threshold into a preset evaluation model to obtain an evaluation result of the health status of the OPGW optical cable.

[0009] In a feasible implementation manner, after evaluating the health status of the OPGW optical cable based on the temperature data and the loss data, it also includes: if the OPGW optical cable is in an unhealthy state, stopping applying ice-melting current to the OPGW optical cable to terminate the ice-melting operation or restart the ice-melting operation.

[0010] In a feasible implementation manner, determining the ice melting current according to the temperature data and the ice coating information, and melting ice on the OPGW optical cable based on the ice melting current includes:

[0011] The ice-melting effect of the OPGW optical cable is evaluated according to the ice-covering information; if the ice-melting effect is good, the ice-melting current of the OPGW optical cable is reduced to obtain a corresponding ice-melting current, and the ice-melting operation is performed on the OPGW optical cable based on the ice-melting current; if the ice-melting effect is not good, when the temperature data is not close to the maximum safety threshold, the ice-melting current of the OPGW optical cable is increased to obtain a corresponding ice-melting current, and the ice-melting operation is performed on the OPGW optical cable based on the ice-melting current.

[0012] A second aspect of the present invention provides an ice melting device for an OPGW optical cable, comprising: a first monitoring module, used to monitor the temperature of the fiber core in the OPGW optical cable to obtain temperature data; a second monitoring module, used to monitor the loss of the fiber core in the OPGW optical cable to obtain loss data; an evaluation module, used to evaluate the health status of the OPGW optical cable based on the temperature data and the loss data; an acquisition module, used to acquire ice coating information of the OPGW optical cable if the OPGW optical cable is in a healthy state; and an ice melting module, used to determine an ice melting current according to the temperature data and the ice coating information, and to melt the ice of the OPGW optical cable based on the ice melting current.

[0013] In a feasible implementation manner, the second monitoring module is specifically used to: use an optical time domain reflectometer to test the fiber core of the OPGW optical cable to generate a line loss curve graph; read the end loss value in the line loss curve graph to obtain the total line loss; identify the steps or reflection peaks in the line loss curve graph to obtain loss events.

[0014] In a feasible implementation manner, the evaluation module includes: a first comparison unit, used to compare the temperature data with the minimum safe temperature and the maximum safe temperature to obtain a first comparison result; a second comparison unit, used to compare the total line loss with the maximum allowable loss to obtain a second comparison result; a third comparison unit, used to compare the number of loss events with the maximum allowable number to obtain a third comparison result; and an evaluation unit, used to evaluate the health status of the OPGW optical cable based on the first comparison result, the second comparison result and the third comparison result.

[0015] In a feasible implementation manner, the evaluation unit is specifically used to: if the first comparison result is that the temperature data is less than the minimum safety temperature or greater than the maximum safety temperature, and the second comparison result is that the total line loss is greater than the maximum allowable loss or the number of loss events is greater than the maximum allowable number, then determine that the OPGW optical cable is in an unhealthy state. If the first comparison result is that the temperature data is not less than the minimum safety temperature and not greater than the maximum safety temperature, the second comparison result is that the total line loss is not greater than the maximum allowable loss, and the third comparison result is that the number of loss events is not greater than the maximum allowable number, then determine that the OPGW optical cable is in a healthy state.

[0016] In a feasible implementation manner, the evaluation module is further specifically used to: input the temperature data, the loss data and a preset safety threshold into a preset evaluation model to obtain an evaluation result of the health status of the OPGW optical cable.

[0017] In a feasible implementation manner, the ice melting device of the OPGW optical cable further includes: a termination module, which is used to stop applying ice melting current to the OPGW optical cable if the OPGW optical cable is in an unhealthy state, so as to terminate the ice melting operation or restart the ice melting operation.

[0018] In a feasible implementation manner, the ice-melting module is specifically used to: evaluate the ice-melting effect of the OPGW optical cable according to the ice-covering information; if the ice-melting effect is good, the ice-melting current of the OPGW optical cable is reduced to obtain the corresponding ice-melting current, and the ice-melting operation is performed on the OPGW optical cable based on the ice-melting current; if the ice-melting effect is not good, when the temperature data is not close to the maximum safety threshold, the ice-melting current of the OPGW optical cable is increased to obtain the corresponding ice-melting current, and the ice-melting operation is performed on the OPGW optical cable based on the ice-melting current.

[0019] A third aspect of the present invention provides an OPGW optical cable ice-melting system, comprising: a memory and at least one processor, wherein the memory stores instructions; the at least one processor calls the instructions in the memory so that the OPGW optical cable ice-melting system executes the above-mentioned OPGW optical cable ice-melting method.

[0020] A fourth aspect of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, which, when executed on a computer, enable the computer to execute the above-mentioned method for melting ice of an OPGW optical cable.

[0021] In the technical solution provided by the present invention, the temperature of the fiber core in the OPGW optical cable is monitored to obtain temperature data; the loss of the fiber core in the OPGW optical cable is monitored to obtain loss data; the health status of the OPGW optical cable is evaluated based on the temperature data and the loss data; if the OPGW optical cable is in a healthy state, the ice information of the OPGW optical cable is obtained; the ice melting current is determined according to the temperature data and the ice information, and the OPGW optical cable is melted based on the ice melting current. In the embodiment of the present invention, the temperature and loss of the fiber core in the OPGW optical cable are comprehensively monitored to accurately evaluate the health status of the optical cable. When confirming that the optical cable is healthy, the ice melting current is intelligently adjusted according to the temperature and ice information, thereby both efficiently removing ice and ensuring the safety of the optical cable, and effectively ensuring the safety of the ice melting process system and the stability of the communication quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of an embodiment of an ice melting method for an OPGW optical cable according to an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of another embodiment of the ice melting method for OPGW optical cables according to an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of an embodiment of an ice melting device for an OPGW optical cable in an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of another embodiment of an ice melting device for an OPGW optical cable in an embodiment of the present invention;

[0026] Figure 5 The figure is a schematic diagram of an embodiment of an ice melting system for an OPGW optical cable in an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The embodiments of the present invention provide an OPGW optical cable ice-melting method, device, system and storage medium, which effectively ensure the security of the optical cable ice-melting system and the stability of communication quality.

[0028] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" or "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] It is understandable that the execution subject of the present invention may be an ice melting device of an OPGW optical cable, or a terminal or a server, which is not limited here. The embodiment of the present invention is described by taking a server as the execution subject as an example.

[0030] For ease of understanding, the specific process of the embodiment of the present invention is described below. Figure 1 An embodiment of the ice melting method of the OPGW optical cable in the embodiment of the present invention includes:

[0031] 101. Monitor the temperature of the fiber core in the OPGW optical cable and obtain temperature data;

[0032] In the OPGW optical cable, an idle optical fiber can be set up. The idle optical fiber is used as a temperature sensor. The temperature of each point along the optical fiber can be monitored through distributed optical fiber temperature sensing technology (DTS) to obtain temperature data. Through DTS technology, continuous, real-time and high-precision monitoring of the temperature of each point along the optical cable can be achieved. DTS technology uses the optical fiber itself as a sensing element, and analyzes the temperature information of each position along the optical fiber by measuring the relationship between Raman scattering, Brillouin scattering and other effects generated when light is transmitted in the optical fiber and temperature. This non-contact temperature measurement method not only avoids the electromagnetic interference and measurement blind spot problems that may exist in traditional temperature sensors, but also greatly improves the accuracy and reliability of the measurement.

[0033] 102. Monitor the loss of the fiber core in the OPGW optical cable and obtain loss data;

[0034] The optical signal of the fiber core is monitored by an optical power meter, and a corresponding power value is generated. The measured power value is compared with the reference value to obtain loss data. The loss data reflects the power attenuation of the optical signal during the optical cable transmission due to factors such as optical fiber material, connector quality, and bending degree.

[0035] 103. Evaluate the health status of OPGW optical cables based on temperature data and loss data;

[0036] Take the average of multiple temperatures in the temperature data to obtain the target temperature, compare the target temperature with the safety threshold range, and determine whether the target temperature falls within the safety threshold range. If the target temperature does not fall within the safety threshold range, the OPGW optical cable is determined to be in an unhealthy state. It is also possible to compare each temperature with the safety temperature threshold range to determine the proportion of temperatures that fall within the safety temperature threshold range. If the proportion of temperatures that fall within the safety temperature threshold range is less than 80%, the OPGW optical cable is determined to be in an unhealthy state; compare the loss data with the maximum allowable loss. If the loss data is greater than the maximum allowable loss, the OPGW optical cable is determined to be in an unhealthy state; when the target temperature falls within the safety threshold range or the proportion of temperatures that fall within the safety temperature threshold range is not less than 80%, and the loss data is not greater than the maximum allowable loss, the OPGW optical cable is determined to be in a healthy state.

[0037] In addition, temperature data, loss data and preset safety thresholds can be input into a preset evaluation model to obtain an evaluation result of the health status of the OPGW optical cable.

[0038] 104. If the OPGW optical cable is in a healthy state, ice coverage information of the OPGW optical cable is obtained;

[0039] The image of the OPGW optical cable is collected by a camera, and pre-processing operations such as denoising and enhancement are performed on the image to improve the image quality. The image processing technology is used to extract the characteristic information of ice covering the surface of the optical cable in the pre-processed image to obtain the ice covering information, which includes but is not limited to contour, color and texture.

[0040] 105. Determine the ice melting current according to the temperature data and the ice coverage information, and melt the ice on the OPGW optical cable based on the ice melting current.

[0041] The contour of the ice cover is analyzed to obtain the boundary characteristics between the optical cable and the ice cover. The boundary characteristics include boundary curvature, width change, etc. According to the boundary characteristics, the corresponding curve fitting model is selected. For example, if the boundary curvature changes greatly, a model that can flexibly represent the bending of the curve can be selected, such as a spline curve or a Bezier curve. The ice cover contour is modeled by the curve fitting method, and the normal direction of each point on the curve is calculated according to the curve equation obtained by fitting, and the distance to the optical cable surface is measured along the normal direction to obtain the local thickness of the ice cover. By analyzing and counting multiple measurement points, parameters such as the average thickness and maximum thickness of the ice cover on the optical cable surface can be obtained.

[0042] When the average thickness or the maximum thickness is less than the preset thickness, the initial current can be adjusted to a small value to obtain a first ice-melting current, and the OPGW optical cable is subjected to an ice-melting operation based on the first ice-melting current;

[0043] When the average thickness or the maximum thickness is greater than the preset thickness, it is determined whether the target temperature is in a range close to the maximum temperature threshold. If the target temperature is not in a range close to the maximum temperature threshold, the initial current is increased to obtain a second ice-melting current, and the OPGW optical cable is melted based on the second ice-melting current; if the target temperature is in a range close to the maximum temperature threshold, the current initial current is maintained to continue to melt the OPGW optical cable.

[0044] The range close to the maximum temperature threshold is set according to actual conditions. For example, if the maximum temperature threshold is 80° C., the range close to the maximum temperature threshold can be set to 75-80° C.

[0045] The initial current can be set according to the ambient temperature and the initial loss of the OPGW optical cable. When the ambient temperature is lower, the initial current is greater to quickly melt the ice and snow on the optical cable.

[0046] In an embodiment of the present invention, the temperature of the fiber core in the OPGW optical cable is monitored to obtain temperature data, the loss of the fiber core in the OPGW optical cable is monitored to obtain loss data, and the health status of the OPGW optical cable is evaluated based on the temperature data and the loss data. If the OPGW optical cable is in a healthy state, the icing information of the OPGW optical cable is obtained, the ice-melting current is determined according to the temperature data and the ice-melting information, and the OPGW optical cable is melted based on the ice-melting current, so that the health status of the optical cable is accurately evaluated, which is conducive to efficiently removing ice and ensuring the safety of the optical cable, and effectively guarantees the safety of the ice-melting process system and the stability of the communication quality.

[0047] See also Figure 2 Another embodiment of the ice melting method of the OPGW optical cable in the embodiment of the present invention includes:

[0048] 201. Monitor the temperature of the fiber core in the OPGW optical cable and obtain temperature data;

[0049] A DTS system is used to send a short pulse laser to the optical fiber. The short pulse laser propagates and scatters in the optical fiber along the length direction. The scattered light signal returned from the optical fiber is received and collected. The scattered light signal includes anti-Stokes light and Stokes light signals in Raman scattering. The intensity of the anti-Stokes light and the Stokes light signals is measured to obtain a first light intensity and a second light intensity. The ratio between the first light intensity and the second light intensity is calculated to obtain a light intensity ratio, and the temperature data is determined based on the light intensity ratio.

[0050] The temperature data can be determined based on the light intensity ratio in the following way: an initial temperature estimate is set, and the actual temperature value is gradually approached by the iteration method. In each iteration, the predicted value of the light intensity ratio is calculated according to the current temperature value, and the predicted value is compared with the actually measured light intensity ratio. The temperature estimate is adjusted according to the comparison result until the preset accuracy requirement is met. In addition, a series of light intensity ratios corresponding to temperatures can be pre-calculated and stored as a lookup table, and the temperature value corresponding to the light intensity ratio closest to the actual measured value can be quickly located through the lookup table.

[0051] The temperature data is filtered and calibrated for noise, and a temperature distribution curve along the length of the optical fiber is generated based on the temperature data after noise filtering and calibration. The temperature distribution curve shows the temperature changes at each point along the optical fiber, providing an important basis for temperature monitoring and fault analysis. The temperature data can be filtered for noise by digital filtering, wavelet transform, and Kalman filtering. The temperature data can be calibrated to adjust the temperature data according to the known reference point temperature or environmental conditions.

[0052] 202. Monitor the loss of the fiber core in the OPGW optical cable and obtain loss data;

[0053] The core of the OPGW optical cable is tested using an optical time domain reflectometer (OTDR) to generate a line loss curve graph; the end loss value in the line loss curve graph is read to obtain the total line loss; the steps or reflection peaks in the line loss curve graph are identified to obtain loss events.

[0054] For the core test of OPGW optical cable, OTDR accurately measures the transmission characteristics of optical fiber by sending optical pulses to the optical fiber under test and receiving the backscattered light (Rayleigh scattering) and Fresnel reflected light returned along the optical fiber. During the test, OTDR can generate a detailed line loss curve, which uses distance (optical fiber length) as the horizontal axis and return loss (attenuation) as the vertical axis to intuitively show the loss along the optical fiber. Through this curve, the loss value at the end of the line can be read. This loss value reflects the total attenuation of the optical signal from the transmitting end to the receiving end after passing through the entire optical fiber line, that is, the total line loss; the line loss curve may also show some special forms, such as steps or reflection peaks, which usually indicate loss events in the optical fiber line; steps indicate that there is a large attenuation change in the optical fiber at a certain point, which may be caused by poor joints, too small bending radius or optical fiber breakage, while reflection peaks are caused by strong reflections generated by the optical fiber end face, connector or optical fiber breakage.

[0055] 203. Compare the temperature data, the total line loss, and the number of loss events with the corresponding safety thresholds to obtain a comparison result;

[0056] The safety thresholds corresponding to the temperature data include the minimum safety temperature and the maximum safety temperature. The safety threshold corresponding to the total line loss is the maximum allowable loss. The safety threshold corresponding to the number of loss events is the maximum allowable number. The temperature data is compared with the minimum safety temperature and the maximum safety temperature to obtain a first comparison result; the total line loss is compared with the maximum allowable loss to obtain a second comparison result; the number of loss events is compared with the maximum allowable number to obtain a third comparison result. The comparison results include the first comparison result, the second comparison result and the third comparison result.

[0057] Among them, the minimum safety temperature, the maximum safety temperature, the maximum allowable loss and the maximum allowable number are set according to the actual situation. For example, the minimum safety temperature is set to 0°C, the maximum safety temperature is set to 80°C, the maximum allowable loss is set to 0.5dB / km, and the maximum allowable number is set to 5.

[0058] 204. Evaluate the health status of the OPGW optical cable based on the comparison result;

[0059] If the first comparison result is that the temperature data is less than the minimum safe temperature or greater than the maximum safe temperature, and the second comparison result is that the total line loss is greater than the maximum allowable loss or the number of loss events is greater than the maximum allowable number, then the OPGW optical cable is determined to be in an unhealthy state. If the first comparison result is that the temperature data is not less than the minimum safe temperature and not greater than the maximum safe temperature, the second comparison result is that the total line loss is not greater than the maximum allowable loss, and the third comparison result is that the number of loss events is not greater than the maximum allowable number, then the OPGW optical cable is determined to be in a healthy state.

[0060] 205. If the OPGW optical cable is in an unhealthy state, stop applying ice-melting current to the OPGW optical cable to terminate the ice-melting operation or restart the ice-melting operation;

[0061] The reason why the OPGW optical cable is in an unhealthy state is that the temperature data is less than the minimum safe temperature or greater than the maximum safe temperature. When the temperature data is less than the minimum safe temperature, the ice-melting operation is restarted; when the temperature data is greater than the maximum safe temperature, the ice-melting current applied to the OPGW optical cable is stopped to terminate the ice-melting operation.

[0062] 206. If the OPGW optical cable is in a healthy state, ice coverage information of the OPGW optical cable is obtained;

[0063] Acoustic wave detection technology is used to obtain ice information of OPGW optical cables. Acoustic wave monitoring technology determines whether the optical cable is covered with ice by the changes in the vibration frequency and amplitude of the OPGW optical cable. When the OPGW optical cable is covered with ice, its vibration characteristics will change significantly. These changes can be captured and analyzed by the acoustic wave monitoring technology, thereby realizing the identification of ice phenomenon and the judgment of ice thickness. Specifically, the acoustic wave detection technology is used to collect the acoustic wave signal generated by the vibration of the optical cable, and the acoustic wave signal is pre-processed by filtering, denoising, etc., and characteristic parameters are extracted from the pre-processed acoustic wave signal. The characteristic parameters include frequency, amplitude, etc. The characteristic parameters are matched with the preset ice state table to determine the current ice state of the optical cable. According to the change in the vibration characteristics of the optical cable, combined with experimental data or simulation data, a mapping relationship between ice thickness and vibration characteristic changes is established, thereby obtaining an estimated ice thickness.

[0064] 207. Determine an ice-melting current according to the temperature data and the ice-covering information, and melt ice on the OPGW optical cable based on the ice-melting current;

[0065] The ice-melting effect of the OPGW optical cable is evaluated according to the ice-covering information; if the ice-melting effect is good, the ice-melting current of the OPGW optical cable is adjusted down to obtain the corresponding ice-melting current, and the OPGW optical cable is melted based on the ice-melting current; if the ice-melting effect is not good, when the temperature data is not close to the maximum safety threshold, the ice-melting current of the OPGW optical cable is adjusted up to obtain the corresponding ice-melting current, and the OPGW optical cable is melted based on the ice-melting current.

[0066] 208. Monitor the optical signal of the OPGW optical cable, determine the bending degree of the OPGW optical cable based on the optical signal, and control the ice melting operation of the OPGW optical cable based on the bending degree.

[0067] The optical signal of the OPGW optical cable is monitored by an optical signal detector, and the optical signal is preprocessed and key parameters are extracted. The key parameters are input into the bending degree assessment model to obtain the bending degree of the OPGW optical cable. If the bending degree exceeds the bending safety threshold, the ice melting current is reduced or the ice melting operation is stopped. By reducing the ice melting current or stopping the ice melting operation when the bending degree of the optical cable exceeds the safety threshold, the risk of damage to the optical cable is reduced, signal attenuation is prevented, the effective execution of ice melting is ensured, and the safety and stable operation of the optical cable is guaranteed.

[0068] In the embodiment of the present invention, the temperature of the fiber core in the OPGW optical cable is monitored to obtain temperature data, the loss of the fiber core in the OPGW optical cable is monitored to obtain loss data, the temperature data, the total line loss, and the number of loss events are compared with corresponding safety thresholds to obtain comparison results, and the health status of the OPGW optical cable is evaluated based on the comparison results. If the OPGW optical cable is in an unhealthy state, the de-icing current applied to the OPGW optical cable is stopped to terminate the de-icing operation or restart the de-icing operation. If the OPGW optical cable is in a healthy state, the de-icing information of the OPGW optical cable is obtained, and the de-icing information of the OPGW optical cable is evaluated based on the temperature data and the de-icing information. Ice information is used to determine the ice-melting current, and the OPGW optical cable is melted based on the ice-melting current. The optical signal of the OPGW optical cable is monitored, the bending degree of the OPGW optical cable is determined based on the optical signal, and the ice-melting operation of the OPGW optical cable is controlled based on the bending degree. The status of the OPGW optical cable is monitored in multiple dimensions, and the health of the optical cable is evaluated in combination with the safety threshold. The ice-melting current is intelligently adjusted to avoid damage under unhealthy conditions. At the same time, the bending degree is monitored using optical signals to optimize the ice-melting operation, thereby effectively ensuring the safety and efficiency of the ice-melting process and the stability of the communication quality, and significantly improving the level of intelligence in ice-melting operations on OPGW optical cables.

[0069] The above describes the de-icing method of the OPGW optical cable in the embodiment of the present invention. The following describes the de-icing device of the OPGW optical cable in the embodiment of the present invention. Figure 3 In one embodiment of the present invention, an ice melting device for an OPGW optical cable includes:

[0070] The first monitoring module 301 is used to monitor the temperature of the fiber core in the OPGW optical cable and obtain temperature data;

[0071] The second monitoring module 302 is used to monitor the loss of the fiber core in the OPGW optical cable and obtain loss data;

[0072] An evaluation module 303, for evaluating the health status of the OPGW optical cable based on the temperature data and the loss data;

[0073] An acquisition module 304 is used to acquire ice coverage information of the OPGW optical cable if the OPGW optical cable is in a healthy state;

[0074] The ice melting module 305 is used to determine the ice melting current according to the temperature data and the ice covering information, and to melt the ice of the OPGW optical cable based on the ice melting current.

[0075] In an embodiment of the present invention, the temperature of the fiber core in the OPGW optical cable is monitored to obtain temperature data, the loss of the fiber core in the OPGW optical cable is monitored to obtain loss data, and the health status of the OPGW optical cable is evaluated based on the temperature data and the loss data. If the OPGW optical cable is in a healthy state, the icing information of the OPGW optical cable is obtained, the ice-melting current is determined according to the temperature data and the ice-melting information, and the OPGW optical cable is melted based on the ice-melting current, so that the health status of the optical cable is accurately evaluated, which is conducive to efficiently removing ice and ensuring the safety of the optical cable, and effectively guarantees the safety of the ice-melting process system and the stability of the communication quality.

[0076] See also Figure 4 Another embodiment of the ice melting device of the OPGW optical cable in the embodiment of the present invention includes:

[0077] The first monitoring module 301 is used to monitor the temperature of the fiber core in the OPGW optical cable and obtain temperature data;

[0078] The second monitoring module 302 is used to monitor the loss of the fiber core in the OPGW optical cable and obtain loss data;

[0079] An evaluation module 303, for evaluating the health status of the OPGW optical cable based on the temperature data and the loss data;

[0080] An acquisition module 304 is used to acquire ice coverage information of the OPGW optical cable if the OPGW optical cable is in a healthy state;

[0081] The ice melting module 305 is used to determine the ice melting current according to the temperature data and the ice covering information, and to melt the ice of the OPGW optical cable based on the ice melting current.

[0082] Optionally, the second monitoring module 302 may be specifically used for:

[0083] The fiber core of the OPGW optical cable is tested using an optical time domain reflectometer to generate a line loss curve graph; the end loss value in the line loss curve graph is read to obtain the total line loss; the steps or reflection peaks in the line loss curve graph are identified to obtain loss events.

[0084] Optionally, the evaluation module 303 includes:

[0085] A first comparison unit 3031 is used to compare the temperature data with the minimum safety temperature and the maximum safety temperature to obtain a first comparison result;

[0086] A second comparison unit 3032, configured to compare the total line loss with the maximum allowable loss to obtain a second comparison result;

[0087] A third comparison unit 3033 is used to compare the number of loss events with the maximum allowed number to obtain a third comparison result;

[0088] The evaluation unit 3034 is used to evaluate the health status of the OPGW optical cable based on the first comparison result, the second comparison result and the third comparison result.

[0089] Optionally, the evaluation unit 3034 may be specifically configured to:

[0090] If the first comparison result is that the temperature data is less than the minimum safe temperature or greater than the maximum safe temperature, and the second comparison result is that the total line loss is greater than the maximum allowable loss or the number of loss events is greater than the maximum allowable number, then the OPGW optical cable is determined to be in an unhealthy state. If the first comparison result is that the temperature data is not less than the minimum safe temperature and not greater than the maximum safe temperature, the second comparison result is that the total line loss is not greater than the maximum allowable loss, and the third comparison result is that the number of loss events is not greater than the maximum allowable number, then the OPGW optical cable is determined to be in a healthy state.

[0091] Optionally, the evaluation module 303 may also be specifically used for:

[0092] The temperature data, loss data and preset safety thresholds are input into the preset evaluation model to obtain the evaluation results of the health status of the OPGW optical cable.

[0093] Optionally, the ice melting device for OPGW optical cable also includes:

[0094] The termination module 306 is used to stop applying ice-melting current to the OPGW optical cable if the OPGW optical cable is in an unhealthy state, so as to terminate the ice-melting operation or restart the ice-melting operation.

[0095] Optionally, the ice melting module 305 can be specifically used for:

[0096] The ice-melting effect of the OPGW optical cable is evaluated according to the ice-covering information; if the ice-melting effect is good, the ice-melting current of the OPGW optical cable is adjusted down to obtain the corresponding ice-melting current, and the OPGW optical cable is melted based on the ice-melting current; if the ice-melting effect is not good, when the temperature data is not close to the maximum safety threshold, the ice-melting current of the OPGW optical cable is adjusted up to obtain the corresponding ice-melting current, and the OPGW optical cable is melted based on the ice-melting current.

[0097] In the embodiment of the present invention, the OPGW optical cable status is monitored in multiple dimensions, the health of the optical cable is evaluated in combination with the safety threshold, the ice-melting current is intelligently adjusted to avoid damage in an unhealthy state, and the bending degree is monitored by optical signals to optimize the ice-melting operation, thereby effectively ensuring the safety and efficiency of the ice-melting process and the stability of the communication quality, and significantly improving the intelligence level of the ice-melting operation on the OPGW optical cable.

[0098] above Figure 3and Figure 4 The ice-melting device of the OPGW optical cable in the embodiment of the present invention is described in detail from the perspective of modular functional entities. The ice-melting system of the OPGW optical cable in the embodiment of the present invention is described in detail from the perspective of hardware processing.

[0099] See also Figure 5 As shown, the ice-melting system for the OPGW optical cable includes a processor 500 and a memory 501 . The memory 501 stores machine executable instructions that can be executed by the processor 500 . The processor 500 executes the machine executable instructions to implement the above-mentioned ice-melting method for the OPGW optical cable.

[0100] Further, Figure 5 The ice melting system for the OPGW optical cable shown further includes a bus 502 and a communication interface 503 , and the processor 500 , the communication interface 503 and the memory 501 are connected via the bus 502 .

[0101] The memory 501 may include a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), for example, at least one disk storage. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 503 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used. The bus 502 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0102] The processor 500 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 500. The above processor 500 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The disclosed methods, steps and logic block diagrams in the embodiments of the present disclosure can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present disclosure can be directly embodied as a hardware decoding processor to be executed, or a combination of hardware and software modules in the decoding processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 501 , and the processor 500 reads the information in the memory 501 and completes the method steps of the above-mentioned embodiment in combination with its hardware.

[0103] The present invention also provides an OPGW optical cable ice melting system, wherein the computer device includes a memory and a processor, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the processor executes the steps of the OPGW optical cable ice melting method in the above-mentioned embodiments. The present invention also provides a computer-readable storage medium, which may be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium, wherein the computer-readable storage medium stores instructions, and when the instructions are executed on a computer, the computer executes the steps of the OPGW optical cable ice melting method.

[0104] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0105] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program codes.

[0106] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An OPGW optical cable de-icing method, applied to an OPGW optical cable de-icing system, characterized in that: The method comprises: Monitoring the temperature of the fiber core in the OPGW optical cable to obtain temperature data; Monitoring the loss of the fiber core in the OPGW optical cable to obtain loss data; Evaluate the health status of the OPGW optical cable based on the temperature data and the loss data; If the OPGW optical cable is in a healthy state, obtaining ice coverage information of the OPGW optical cable; An ice-melting current is determined according to the temperature data and the ice-covering information, and the OPGW optical cable is de-iced based on the ice-melting current.

2. The ice melting method for OPGW optical cable according to claim 1, characterized in that: The monitoring of the loss of the fiber core in the OPGW optical cable to obtain loss data includes: Using an optical time domain reflectometer to test the core of the OPGW optical cable to generate a line loss curve graph; Reading the terminal loss value in the line loss curve diagram to obtain the total line loss; Steps or reflection peaks in the line loss curve are identified to obtain loss events.

3. The ice melting method for OPGW optical cable according to claim 2, characterized in that: The evaluating the health status of the OPGW optical cable based on the temperature data and the loss data comprises: Comparing the temperature data with the minimum safe temperature and the maximum safe temperature to obtain a first comparison result; Comparing the total line loss with the maximum allowable loss to obtain a second comparison result; comparing the number of the loss events with a maximum allowed number to obtain a third comparison result; The health status of the OPGW optical cable is evaluated based on the first comparison result, the second comparison result, and the third comparison result.

4. The ice melting method for OPGW optical cable according to claim 3, characterized in that: The evaluating the health status of the OPGW optical cable based on the first comparison result, the second comparison result and the third comparison result includes: If the first comparison result is that the temperature data is less than the minimum safe temperature or greater than the maximum safe temperature, and the second comparison result is that the total line loss is greater than the maximum allowable loss or the number of loss events is greater than the maximum allowable number, it is determined that the OPGW optical cable is in an unhealthy state. If the first comparison result is that the temperature data is not less than the minimum safe temperature and not greater than the maximum safe temperature, the second comparison result is that the total line loss is not greater than the maximum allowable loss, and the third comparison result is that the number of loss events is not greater than the maximum allowable number, then it is determined that the OPGW optical cable is in a healthy state.

5. The ice melting method for OPGW optical cable according to claim 1, characterized in that: The evaluating the health status of the optical cable based on the temperature data and the loss data comprises: The temperature data, the loss data and a preset safety threshold are input into a preset evaluation model to obtain an evaluation result of the health status of the OPGW optical cable.

6. The ice melting method for an OPGW optical cable according to any one of claims 1 to 5, characterized in that: After evaluating the health status of the OPGW optical cable based on the temperature data and the loss data, the method further includes: If the OPGW optical cable is in an unhealthy state, the ice-melting current applied to the OPGW optical cable is stopped to terminate the ice-melting operation or restart the ice-melting operation.

7. The ice melting method for OPGW optical cable according to claim 1, characterized in that: The step of determining an ice-melting current according to the temperature data and the ice-covering information, and melting ice on the OPGW optical cable based on the ice-melting current, comprises: evaluating an ice-melting effect of the OPGW optical cable according to the ice-covering information; If the ice-melting effect is good, the current for melting ice on the OPGW optical cable is adjusted to be small, a corresponding ice-melting current is obtained, and the ice-melting operation is performed on the OPGW optical cable based on the ice-melting current; If the ice melting effect is not good, when the temperature data is not close to the highest safety threshold, the current for melting ice on the OPGW optical cable is increased to obtain a corresponding ice melting current, and the OPGW optical cable is melted based on the ice melting current.

8. An OPGW optical cable ice melting device, applied to an OPGW optical cable ice melting system, characterized in that: The ice melting device of the OPGW optical cable comprises: A first monitoring module is used to monitor the temperature of the fiber core in the OPGW optical cable to obtain temperature data; A second monitoring module is used to monitor the loss of the fiber core in the OPGW optical cable to obtain loss data; An evaluation module, configured to evaluate the health status of the OPGW optical cable based on the temperature data and the loss data; An acquisition module, configured to acquire ice coverage information of the OPGW optical cable if the OPGW optical cable is in a healthy state; An ice melting module is used to determine an ice melting current according to the temperature data and the ice coating information, and to melt ice on the OPGW optical cable based on the ice melting current.

9. An ice melting system for OPGW optical cable, characterized in that: The ice melting system of the OPGW optical cable comprises: a memory and at least one processor, wherein instructions are stored in the memory; The at least one processor calls the instructions in the memory to enable the current regulation system to execute the ice melting method for the OPGW optical cable according to any one of claims 1-7.

10. A computer-readable storage medium having instructions stored thereon, characterized in that: When the instructions are executed by the processor, the ice melting method for the OPGW optical cable as described in any one of claims 1 to 7 is implemented.

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