Cable searching method of communication optical cable, electronic equipment and computer readable storage medium

Abstract

The invention discloses a communication optical cable searching method, electronic equipment and a computer readable storage medium, and belongs to the technical field of communication. According to the technical scheme, under the condition that preset disturbance stress is applied to a point location of an optical cable to be detected, polarization state information of detection light currently transmitted by a target optical cable is dynamically detected through a Brillouin optical time domain reflectometer correspondingly connected with the target optical cable; and according to the dynamically detected polarization state information, determining whether the to-be-identified optical cable at the to-be-detected optical cable point location is a target optical cable. According to the invention, on the basis that the optical cable is not damaged, the accuracy of searching and positioning the optical cable is improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method for finding a communication optical cable, an electronic device, and a computer-readable storage medium. Background Art

[0002] With the rapid development of 5G (5th-Generation Mobile Communication Technology), cloud computing, big data, virtual reality, and artificial intelligence, a massive demand for information transmission has been generated. Faced with the rapid growth trend of data traffic, as the core part of the communication network, optical fiber communication networks are constantly being built and expanded. Operators have invested heavily in laying optical cables to build larger capacity optical fiber communication systems and networks.

[0003] The huge number of optical cables poses a huge challenge to operation and maintenance. When carrying out network upgrades and cutovers, optical cable fault location, and route verification, it is necessary to accurately find the corresponding optical cables. However, optical cable resource information relies on manual entry, which has poor reliability and leads to low accuracy of asset management data. At the same time, with the corrosion of municipal construction and natural environment, the signs when laying optical cables are difficult to identify, and the optical cables of multiple operators share pipelines and optical cable wells, resulting in a very complex distribution of optical cables in the existing network. Therefore, a high-precision cable finding method is urgently needed.

[0004] The cable search and location has always been a difficult point in the operation and maintenance of optical cables. Currently, there are two main ways to find optical cables: the first is to shine a red light at one end of the optical cable, peel off the protective layer of the optical cable at the test point, bend the fiber core, and determine the target optical cable by observing whether there is red light at the bend. This method has a short detection distance and requires the destruction of the optical cable, which poses a great safety hazard to the running business, and the accuracy of cable search and location is not high. The second is to shine a light at one end of the optical cable through an OTDR (Optical Time-Domain Reflectometer), bend the optical cable to a greater extent at the test point to create a larger attenuation point, and determine the target optical cable by observing the OTDR detection curve. Although this method has a long detection distance, it is not accurate and will cause irreversible damage to the optical cable, affecting the service life of the optical cable. Summary of the invention

[0005] The main purpose of the present application is to provide a method for finding a communication optical cable, an electronic device and a computer-readable storage medium, aiming to solve the technical problem of how to improve the accuracy of finding and locating an optical cable without causing damage to the optical cable.

[0006] To achieve the above object, the present application provides a method for finding a communication optical cable, comprising:

[0007] Under the condition that a preset disturbance stress is applied to the point of the optical cable to be detected, the polarization state information of the detection light currently transmitted by the target optical cable is dynamically detected by a Brillouin optical time domain reflectometer correspondingly connected to the target optical cable;

[0008] According to the dynamically detected polarization state information, it is determined whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

[0009] To achieve the above object, the present application provides a method for finding a communication optical cable, comprising:

[0010] Under the condition that a preset disturbance stress is applied to the optical cable point to be detected, the polarization state information of the detection light currently transmitted by the target optical cable is dynamically detected by a polarization light time domain reflectometer connected to the target optical cable;

[0011] According to the dynamically detected polarization state information, it is determined whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

[0012] To achieve the above object, the present application provides a method for finding a communication optical cable, comprising:

[0013] Under the condition that a preset disturbance stress is applied to the optical cable point to be detected, the polarization state information of the detection light currently transmitted by the target optical cable is dynamically detected through the optical digital signal processing unit of the coherent optical module correspondingly connected to the target optical cable;

[0014] According to the dynamically detected polarization state information, it is determined whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

[0015] In addition, to achieve the above-mentioned purpose, the present application also provides an electronic device, which includes: a memory, a processor, and a communication optical cable finding program stored in the memory and runnable on the processor, and when the communication optical cable finding program is executed by the processor, the communication optical cable finding method as described above is implemented.

[0016] In addition, to achieve the above-mentioned purpose, the present application also provides a computer-readable storage medium, on which a communication optical cable finding program is stored. When the communication optical cable finding program is executed by a processor, the communication optical cable finding method as described above is implemented.

[0017] The present application proposes a method for finding a communication optical cable, an electronic device and a computer-readable storage medium. In the method for finding a communication optical cable, the technical solution of the embodiment of the present application is to dynamically detect the polarization state information of the detection light currently transmitted by the target optical cable through a Brillouin optical time domain reflectometer connected to the corresponding target optical cable while applying a preset disturbance stress to the optical cable point to be detected, and then determine whether the optical cable to be identified at the optical cable point to be detected is the target optical cable based on the dynamically detected polarization state information. Compared with the current optical cable locating method, the embodiment of the present application does not need to peel off the protective layer of the optical cable at the test point (i.e., the optical cable point to be detected) and bend the fiber core, so as not to damage the optical cable. In addition, the present embodiment uses the high-precision monitoring mechanism of the Brillouin optical time domain reflectometer (BOTDR) for the detection light, combined with the synaesthesia simultaneous transmission method or the non-synaesthesia simultaneous transmission method, to monitor the polarization state or frequency deviation changes caused by external stress (the external stress can be applied mechanically or manually), so that the embodiment of the present application can find the target optical cable more accurately, thereby improving the accuracy of cable locating and locating the optical cable, facilitating the accurate finding of the target optical cable in a complex existing network environment, and realizing the positioning of the target optical cable. In addition, the multi-point positioning information can be further combined to realize the route identification of the target optical cable, and provide accurate optical cable information for fault location, operation and maintenance cutover, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 This is a flow chart of a first embodiment of a method for finding a communication optical cable of the present application;

[0021] Figure 2 This is a flow chart of a second embodiment of a method for finding a communication optical cable of the present application;

[0022] Figure 3 A schematic diagram of a flow chart of a third embodiment of a method for finding a communication optical cable of the present application;

[0023] Figure 4 This is a schematic diagram of the cable search process of a communication optical cable in a specific embodiment of the present application;

[0024] Figure 5 This is a schematic diagram of a cable search scenario for a communication optical cable in the first embodiment of the present application;

[0025] Figure 6 This is a schematic diagram of a cable search scenario for a communication optical cable in the second embodiment of the present application;

[0026] Figure 7 This is a schematic diagram of a cable search scenario for a communication optical cable in the third embodiment of the present application;

[0027] Figure 8 This is a schematic diagram of a cable search scenario for a communication optical cable in the fourth embodiment of the present application;

[0028] Fig. 9 This is a schematic diagram of a cable search scenario for a communication optical cable in the fifth embodiment of the present application;

[0029] Fig.10 This is a schematic diagram of a cable search scenario for a communication optical cable in the sixth embodiment of the present application;

[0030] Fig.11 This is a schematic diagram of an interface for displaying a polarization state dynamic image using a network management application display interface in an embodiment of the present application;

[0031] Fig.12 Schematic diagram of the device structure of the hardware operating environment involved in the electronic device in this embodiment.

[0032] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0034] The huge number of optical cables poses a huge challenge to operation and maintenance. When carrying out network upgrades and cutovers, optical cable fault location, and route verification, it is necessary to accurately find the corresponding optical cables. However, optical cable resource information relies on manual entry, which has poor reliability and leads to low accuracy of asset management data. At the same time, with the corrosion of municipal construction and natural environment, the signs when laying optical cables are difficult to identify, and the optical cables of multiple operators share pipelines and optical cable wells, resulting in a very complex distribution of optical cables in the existing network. Therefore, a high-precision cable finding method is urgently needed.

[0035] The cable search and location has always been a difficult point in the operation and maintenance of optical cables. Currently, there are two main ways to find optical cables: the first is to shine a red light at one end of the optical cable, peel off the protective layer of the optical cable at the test point, bend the fiber core, and determine the target optical cable by observing whether there is red light at the bend. This method has a short detection distance and needs to destroy the optical cable, which poses a great safety hazard to the running business, and the accuracy of cable search and location is not high. The second is to shine a light at one end of the optical cable through OTDR (Optical Time-□Domain Reflectometer, ordinary optical time domain reflectometer), bend the optical cable to a greater extent at the test point to create a large attenuation point, and determine the target optical cable by observing the OTDR detection curve. Although this method has a long detection distance, the accuracy is not high, and it will cause irreversible damage to the optical cable, affecting the service life of the optical cable.

[0036] Embodiment 1

[0037] Based on this, please refer to Figure 1 This embodiment provides a method for finding a communication optical cable, the method comprising:

[0038] Step S100, dynamically detecting polarization state information of the detection light currently transmitted by the target optical cable through a Brillouin optical time domain reflectometer connected to the target optical cable while applying a preset disturbance stress to the optical cable point to be detected;

[0039] In this embodiment, the optical cable point to be detected refers to a preset optical cable detection position on the optical cable to be identified, and a person skilled in the art can apply a preset disturbance stress to the optical cable point to be detected by a mechanical tool (such as a stress applying tool including an optical cable clamp and a vibration generator) or manually. The preset disturbance stress refers to a stress value applied within a preset time period that will produce a preset change.

[0040] It is known to those skilled in the art that the basic principle of Brillouin optical time domain reflectometry is that the continuous elastic mechanical vibration of the medium inside the optical fiber causes the density of the medium to change with space and time periods, and the refractive index of the medium is periodically modulated and propagates at the speed of sound, producing a grating-like effect. When the light wave is incident on the optical fiber, it is affected by the acoustic field grating and produces a frequency shift related to the speed of sound. The frequency shift changes approximately linearly with the change in the temperature and strain of the optical fiber. That is, according to the basic principle of optical time domain reflectometry technology, when the light pulse propagates forward along the optical fiber, it continuously generates back-scattered Brillouin light, and the back-scattered Brillouin light can be used to locate the strain information corresponding to each point along the optical fiber.

[0041] This embodiment can realize rapid measurement of the Brillouin frequency by using the phase demodulation technology of the Brillouin scattered light, and can demodulate the relevant information of the stress on the optical fiber (ie, the polarization state information).

[0042] It is understandable that, in general, since the power of the Brillouin scattered light received by the system is very weak and close to the frequency of the Rayleigh scattered light, it is necessary to use directional coherent detection technology to extract the Brillouin scattered light.

[0043] Step S200: determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the polarization state information detected dynamically.

[0044] It is known to those skilled in the art that the polarization state information detected dynamically can be used to reflect the stress change information corresponding to each point along the optical fiber. This is because the refractive index of the optical fiber will change with the change of external stress. When high coherence light is used for detection, the phase of the reflected light at each point of the optical fiber will change with the change of stress value. The corresponding reflected light phase change is proportional to the value of the stress change of the optical fiber. Therefore, the target optical cable can be analyzed by detecting the reflected light phase change to determine whether it is subjected to the preset disturbance stress. Fig.11 As shown, Fig.11 The polarization state waveform shown in the rectangular box is the polarization state information generated by the preset disturbance stress.

[0045] Exemplarily, the service light and the detection light transmitted by the target optical cable are in a synaesthesia mode or a non-synaesthesia mode, wherein in the non-synaesthesia mode, the service light and the detection light are transmitted through different optical fibers in the target optical cable.

[0046] This embodiment can be used for cable finding by deploying Brillouin Optical Time Domain Reflectometer (BOTDR) and other sensing equipment in each site of the optical network. In the synaesthesia mode, the detection light received and sent by the optical module can achieve synaesthesia with the business light. For standard single-mode optical fiber, synaesthesia can be achieved through wavelength division multiplexing. For few-mode / multimode optical fiber, synaesthesia can be achieved through mode division multiplexing. For multi-core optical fiber, synaesthesia can be achieved through wavelength division multiplexing / core multiplexing. In the non-synaesthesia mode, the BOTDR needs to be connected to any optical fiber of the target optical cable in the machine room / site.

[0047] In this embodiment, the service light and the detection light transmitted in the target optical cable are in a synaesthesia simultaneous transmission mode or a non-synaesthesia simultaneous transmission mode. In the non-synaesthesia simultaneous transmission mode, the service light and the detection light are transmitted through different optical fibers in the target optical cable. This ensures that in the process of cable locating the target optical cable, the normal transmission of the service light is not affected, and further, the normal use of the user's service application functions is not affected, thereby improving the robustness of the cable locating method for the communication optical cable in the embodiment of the present application.

[0048] The cable-finding and positioning principle of the communication optical cable provided in the embodiment of the present application is as follows: when the optical cable winding reels in the optical fiber well are entangled with each other and the target optical cable cannot be identified, the preset disturbance stress can be applied based on mechanical tools or manually at the preset optical cable detection position of the optical cable to be identified (i.e., the point of the optical cable to be detected), and the polarization state information of the detection light currently transmitted by the target optical cable can be dynamically detected through the Brillouin optical time domain reflectometer corresponding to the target optical cable. When the optical cable to be identified is not the target optical cable, the detected polarization state information is equivalent to that caused by the contact point between the optical cable to be identified and the target optical cable. Therefore, when the optical cable to be detected and the target optical cable are not the same optical cable, the detected polarization state information is relatively stable (a certain frequency change will not be generated). When the optical cable to be detected and the target optical cable are the same optical cable, the polarization state information produces a certain frequency deviation change due to the preset disturbance stress on the optical fiber.

[0049] Among them, the embodiments of the present application relate to the field of transmission network communications, and in particular to the cable finding and positioning technology of communication optical cables in the OTN (Optical Transport Network) network operation and maintenance stage.

[0050] At the external optical fiber well, when external stress generated by mechanical or artificial means acts on the target optical cable, the Brillouin optical time domain reflectometer (BOTDR) can monitor the changes in polarization state or frequency deviation caused by the changes in external stress. Specifically, when external stress acts on non-target optical cables, the BOTDR connected to the corresponding target optical cable cannot monitor the changes in polarization state or frequency deviation. Furthermore, the BOTDR can locate the position of the target optical cable and report the position information to the asset management and operation system. Based on the multi-point positioning information, the operation and maintenance personnel can judge the consistency of the business route and the planned route, and troubleshoot the hidden dangers of route inconsistency in the network.

[0051] The present application proposes a method for finding a communication optical cable, an electronic device and a computer-readable storage medium. In the method for finding a communication optical cable, the technical solution of the embodiment of the present application is to dynamically detect the polarization state information of the detection light currently transmitted by the target optical cable through a Brillouin optical time domain reflectometer connected to the corresponding target optical cable while applying a preset disturbance stress to the optical cable point to be detected, and then determine whether the optical cable to be identified at the optical cable point to be detected is the target optical cable based on the dynamically detected polarization state information.

[0052] Compared with the current optical cable locating method, the embodiment of the present application does not need to peel off the protective layer of the optical cable at the test point (i.e., the optical cable point to be detected) and bend the fiber core, so as not to damage the optical cable. In addition, the present embodiment uses the high-precision monitoring mechanism of the Brillouin optical time domain reflectometer (BOTDR) for the detection light, combined with the synaesthesia simultaneous transmission method or the non-synaesthesia simultaneous transmission method, to monitor the polarization state or frequency deviation changes caused by external stress (the external stress can be applied mechanically or manually), so that the embodiment of the present application can find the target optical cable more accurately, thereby improving the accuracy of cable locating and locating the optical cable, facilitating the accurate finding of the target optical cable in a complex existing network environment, and realizing the positioning of the target optical cable. In addition, the multi-point positioning information can be further combined to realize the route identification of the target optical cable, and provide accurate optical cable information for fault location, operation and maintenance cutover, etc.

[0053] In an practicable manner, the step of determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the polarization state information detected dynamically includes:

[0054] Step A10, converting the dynamically detected polarization state information into a polarization state dynamic image;

[0055] Step A20: output and display the polarization state dynamic image through a preset network management application display interface, wherein the polarization state dynamic image is used to indicate whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

[0056] It is known to those skilled in the art that the polarization state information refers to a polarization state signal (e.g., a digital signal) detected by a Brillouin optical time domain reflectometer. In addition, the polarization state dynamic image may refer to a dynamic waveform image corresponding to the dynamically changing polarization state information (since the polarization state information often changes in real time, the dynamic waveform image will also change in real time).

[0057] In order to facilitate a more intuitive judgment of whether the optical cable to be identified that is currently undergoing disturbance stress detection is the target optical cable, this embodiment converts the dynamically detected polarization state information into a polarization state dynamic image (for example, the polarization state dynamic image includes a real-time detected polarization state image), and then outputs and displays the polarization state dynamic image through a preset network management application display interface, thereby enabling the polarization state dynamic image to be intuitively observed by the human eye and accurately judging whether the optical cable to be identified is the target optical cable.

[0058] In another practicable manner, the step of determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the polarization state information detected dynamically includes:

[0059] Step B10, identifying frequency deviation fluctuation information within a current preset monitoring period according to the dynamically detected polarization state information;

[0060] Step B20, when the frequency deviation change value corresponding to the frequency deviation fluctuation information is greater than a preset threshold, determining that the optical cable to be identified at the optical cable point to be detected is the target optical cable;

[0061] Step B30: When the frequency deviation change value corresponding to the frequency deviation fluctuation information is not greater than a preset threshold, determining that the optical cable to be identified at the optical cable point to be detected is not the target optical cable.

[0062] In this embodiment, the duration of the preset monitoring cycle is not specifically limited in this embodiment, and can be set by those skilled in the art according to actual conditions. Correspondingly, the preset threshold is also not specifically limited in this embodiment, and can be set by those skilled in the art according to actual conditions, so as to more accurately and sensitively determine whether the optical cable to be identified is the same optical cable as the target optical cable.

[0063] This embodiment identifies the frequency deviation fluctuation information in the current preset monitoring period according to the polarization state information detected dynamically. When the frequency deviation change value corresponding to the frequency deviation fluctuation information is greater than a preset threshold, the optical cable to be identified at the optical cable point to be detected is determined to be the target optical cable. When the frequency deviation change value corresponding to the frequency deviation fluctuation information is not greater than the preset threshold, the optical cable to be identified at the optical cable point to be detected is determined not to be the target optical cable, thereby accurately determining whether the optical cable to be identified is the target optical cable.

[0064] In another possible implementation, the step of determining, based on the dynamically detected polarization state information, whether the optical cable to be identified at the optical cable point to be detected is the target optical cable comprises:

[0065] Step C10, converting the dynamically detected polarization state information into a polarization state dynamic image;

[0066] Step C20, outputting and displaying the polarization state dynamic image through a preset network management application display interface;

[0067] Step C30, collecting the polarization state dynamic image displayed on the network management application display interface, and performing image recognition processing on the collected polarization state dynamic image to identify whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

[0068] In this embodiment, the polarization state dynamic image displayed on the network management application display interface can be collected by a camera, or the polarization state dynamic image displayed on the network management application display interface can be collected by an image acquisition device built into the network management device.

[0069] It is easy to understand that the polarization state dynamic image carries indication information indicating whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

[0070] Specifically, as an example, the step of performing image recognition processing on the collected polarization state dynamic image to identify whether the optical cable to be identified at the optical cable point to be detected is the target optical cable includes:

[0071] Step D10, performing image recognition processing on the collected polarization state dynamic image to identify and obtain the actual frequency deviation waveform within the current preset monitoring period;

[0072] Step D20, matching the actual frequency deviation waveform with a preset frequency deviation waveform template;

[0073] Step D30, when the matching rate with the frequency deviation waveform template is greater than a preset ratio threshold, determining that the optical cable to be identified at the optical cable point to be detected is the target optical cable;

[0074] Step D40: When the matching rate with the frequency deviation waveform template is not greater than a preset ratio threshold, it is determined that the optical cable to be identified at the optical cable point to be detected is not the target optical cable.

[0075] In this embodiment, the preset frequency deviation waveform template is calibrated based on applying a preset disturbance stress to the target optical cable in advance and corresponding to the frequency deviation waveform displayed on the network management application display interface.

[0076] The preset ratio threshold is not specifically limited in this embodiment, and those skilled in the art may set it according to actual conditions to more accurately and sensitively determine whether the optical cable to be identified is the target optical cable. For example, the preset ratio threshold may be 90% or 95%.

[0077] As another example, the step of performing image recognition processing on the collected polarization state dynamic image to identify whether the optical cable to be identified at the optical cable point to be detected is the target optical cable includes:

[0078] Step E10, performing image recognition processing on the collected polarization state dynamic image to identify and obtain frequency deviation fluctuation information within the current preset monitoring period;

[0079] Step E20, when the frequency deviation change value corresponding to the frequency deviation fluctuation information is greater than a preset threshold, determining that the optical cable to be identified at the optical cable point to be detected is the target optical cable;

[0080] Step E30: When the frequency deviation variation value corresponding to the frequency deviation fluctuation information is not greater than a preset threshold, it is determined that the optical cable to be identified at the optical cable point to be detected is not the target optical cable.

[0081] In this embodiment, the preset threshold is not specifically limited in this embodiment, and those skilled in the art may set it according to actual conditions (the preset threshold may be calibrated based on the preset disturbance stress applied to the target optical cable in advance and the frequency deviation change value displayed on the network management application display interface), so as to more accurately and sensitively determine whether the optical cable to be identified is the target optical cable.

[0082] In a possible implementation, the method further includes:

[0083] Step F10, in the case of sequentially applying preset disturbance stress to a plurality of different optical cable points to be detected, sequentially determining whether the optical cable to be identified at each of the optical cable points to be detected is the target optical cable according to the polarization state information detected dynamically;

[0084] Step F20, taking the optical cable points to be detected on the target optical cable as target points, and connecting two adjacent target points among the target points by trajectories to construct point path information;

[0085] Step F30, determining the planned optical cable direction of the target optical cable according to the point path information.

[0086] This embodiment sequentially applies preset disturbance stress to a plurality of different optical cable points to be detected, and determines whether the optical cable to be identified at each optical cable point to be detected is a target optical cable according to the polarization state information of dynamic detection. The optical cable point to be detected on the target optical cable is used as the target point, and the trajectory of two adjacent target points in each target point is connected to construct point path information, and then the cable planning direction of the target optical cable is determined according to the point path information, so that the embodiment of the present application can realize the identification of the route direction of the target optical cable in combination with the multi-point positioning information, so as to provide accurate optical cable information for subsequent fault location, operation and maintenance cutover, etc.

[0087] Further, after determining the planned optical cable direction of the target optical cable according to the point path information, the method further includes:

[0088] Step G10, obtaining preset service routing planning information, wherein the service routing planning information includes the service routing planning direction of the target optical cable;

[0089] Step G20, identifying whether the planned direction of the optical cable is consistent with the planned direction of the service route according to the service route planning information;

[0090] Step G30, when it is identified that the direction is inconsistent with the service route planning, an alarm prompt message is output.

[0091] The embodiment of the present application obtains preset business routing planning information, which includes the business routing planning direction of the target optical cable. According to the business routing planning information, it is identified whether the optical cable planning direction is consistent with the business routing planning direction. When it is identified that it is inconsistent with the business routing planning direction, an alarm prompt information is output, thereby realizing the inspection of the physical routing direction of the optical cable through the optical cable position information of the target optical cable reported from multiple places, and further realizing the provision of accurate optical cable information for fault location, operation and maintenance cutover, etc.

[0092] Further, in order to help understand the technical principles of the embodiments of the present application, a specific embodiment 1 is listed, including:

[0093] In the present invention, a Brillouin Optical Time Domain Reflectometer (BOTDR) is used to monitor the polarization state / frequency deviation changes with or without mechanical or artificial stress to achieve cable finding. The entire solution process is as follows: Figure 4 The detailed steps are as follows:

[0094] Step 101: Using a BOTDR to monitor polarization state / frequency deviation changes in a target optical cable under mechanical or artificial stress.

[0095] Step 102: Using a BOTDR to monitor polarization state / frequency deviation changes in the target optical cable without applying mechanical or artificial stress.

[0096] Step 103, calculating the degree of polarization state / frequency deviation change.

[0097] Step 104, determining whether it is the target optical cable.

[0098] In one embodiment, the polarization state / frequency deviation changes related to stress can be displayed in real time on the network management system interface (i.e., the network management application display interface described above), and whether it is a target optical cable can be determined by the polarization state / frequency deviation changes displayed in real time on the interface. In another embodiment, the frequency deviation change degree in the polarization state information of the target optical cable under the conditions of applying / not applying stress can be compared, and the frequency deviation change degree can be compared with a threshold value. When the frequency deviation change degree is greater than the threshold value, it is determined to be a target optical cable.

[0099] Please refer to Figure 5 , Figure 5This is a schematic diagram of the cable-finding scenario for communication optical cables in the first embodiment of the present application. Among them, a BOTDR is deployed at the sending site, and an interface is used to display in real time whether it is the target optical cable. Under the synaesthesia method, for standard single-mode optical fibers, BOTDR can achieve synaesthesia through wavelength division multiplexing. For few-mode / multimode optical fibers, synaesthesia can be achieved through mode division multiplexing. For multi-core optical fibers, synaesthesia can be achieved through wavelength division multiplexing / core multiplexing. In the non-synaesthesia mode, BOTDR needs to occupy a separate optical fiber. BOTDR monitors the frequency deviation changes when mechanical or artificial stress is applied / not applied, and displays it in real time on the network management / user function interface. By observing the level of changes on the interface, it can be determined whether it is the target optical cable.

[0100] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the cable-finding scenario for communication optical cables in the second embodiment of the present application. Among them, a BOTDR is deployed at the sending site, and a threshold method is used to determine whether it is a target optical cable. Under the synaesthesia method, for standard single-mode optical fibers, BOTDR can achieve synaesthesia through wavelength division multiplexing. For few-mode / multimode optical fibers, synaesthesia can be achieved through mode division multiplexing. For multi-core optical fibers, synaesthesia can be achieved through wavelength division multiplexing / core multiplexing. In the non-synaesthesia mode, the BOTDR needs to occupy a separate optical fiber. The BOTDR monitors the frequency deviation changes when mechanical or artificial stress is applied / not applied, and compares the frequency deviation change degree with a preset threshold by calculating the polarization state / frequency deviation change degree. When it is greater than the threshold, it is determined to be the target optical cable.

[0101] In this embodiment, if it is described that the optical cable is found by applying external stress to the target optical cable, and the polarization state and frequency deviation change of the target optical cable are displayed on the user function interface, the schematic diagram is as shown in FIG. Fig.11 As shown, Fig.11 The polarization state waveform shown in the rectangular box is the polarization state information generated by the preset disturbance stress.

[0102] During the normal operation of the network, the operation and maintenance personnel can use the method mentioned in this specific embodiment to accurately find the target optical cable in the complex existing network environment, and can realize the positioning of the target optical cable. Based on the multi-point positioning information, the optical cable routing direction can also be identified, thereby providing accurate optical cable information for fault location, operation and maintenance cutover, etc. This specific embodiment can also realize the inspection of the physical routing direction of the optical cable through the optical cable location information reported from multiple places.

[0103] It should be noted that the many details described in this specific embodiment are only helpful for understanding the technical concept of the present application and do not constitute a limitation of the present application. More simple transformations based on the technical concept of the present application should all be within the scope of protection of the present application.

[0104] Embodiment 2

[0105] Based on the first embodiment of the present application, in another embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 2 This embodiment also provides a method for finding a communication optical cable, the method comprising:

[0106] Step S300, dynamically detecting polarization state information of the detection light currently transmitted by the target optical cable through a polarization time domain reflectometer connected to the target optical cable while applying a preset disturbance stress to the optical cable point to be detected;

[0107] In this embodiment, the optical cable point to be detected refers to a preset optical cable detection position on the optical cable to be identified, and a person skilled in the art can apply a preset disturbance stress to the optical cable point to be detected by a mechanical tool (such as a stress applying tool including an optical cable clamp and a vibration generator) or manually. The preset disturbance stress refers to a stress value applied within a preset time period that will produce a preset change.

[0108] In this embodiment, the polarization optical time domain reflectometer (POTDR) is a fully distributed optical fiber sensor based on optical time domain reflectometry technology. It senses by detecting the change in the polarization state of scattered light waves in the optical fiber, and has the characteristics of high sensitivity, low false alarm rate, and can measure and locate disturbances at any position along the optical fiber.

[0109] Among them, the light source of the polarization time domain reflectometer uses a broadband laser of about 0.1 nanometers to generate polarized light pulses. Its specific working principle is: the back Rayleigh scattering signal is affected by the change of the local polarization state. If interference occurs at a certain position on the sensing fiber, the original polarization state will be modulated. POTDR can monitor the spatial distribution of the polarization characteristics of the optical fiber, which can be adjusted by pressure, strain, temperature, and electric and magnetic fields. Due to the short-term change of the polarization state of the light pulse over time, the polarization time domain reflectometer can be used for the dynamic measurement of the disturbance signal.

[0110] Step S400: determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the polarization state information detected dynamically.

[0111] It is known to those skilled in the art that the polarization state information detected dynamically can be used to reflect the stress change information corresponding to each point along the optical fiber. This is because the refractive index of the optical fiber will change with the change of external stress. When high coherence light is used for detection, the phase of the reflected light at each point of the optical fiber will change with the change of stress value. The corresponding reflected light phase change is proportional to the value of the stress change of the optical fiber. Therefore, the target optical cable can be analyzed by detecting the reflected light phase change to determine whether it is subjected to the preset disturbance stress. Fig.11 As shown, Fig.11 The polarization state waveform shown in the rectangular box is the polarization state information generated by the preset disturbance stress.

[0112] Exemplarily, the service light and the detection light transmitted by the target optical cable are in a synaesthesia mode or a non-synaesthesia mode, wherein in the non-synaesthesia mode, the service light and the detection light are transmitted through different optical fibers in the target optical cable.

[0113] This embodiment can be used for cable finding by deploying sensing equipment such as polarization optical time domain reflectometer (POTDR) in each site of the optical network. In the synaesthesia mode, the detection light received and sent by the optical module can achieve synaesthesia with the business light. For standard single-mode optical fiber, synaesthesia can be achieved through wavelength division multiplexing. For few-mode / multimode optical fiber, synaesthesia can be achieved through mode division multiplexing. For multi-core optical fiber, synaesthesia can be achieved through wavelength division multiplexing / core multiplexing. In the non-synaesthesia mode, the POTDR needs to be connected to any optical fiber of the target optical cable in the machine room / site.

[0114] In this embodiment, the service light and the detection light transmitted in the target optical cable are in a synaesthesia simultaneous transmission mode or a non-synaesthesia simultaneous transmission mode. In the non-synaesthesia simultaneous transmission mode, the service light and the detection light are transmitted through different optical fibers in the target optical cable. This ensures that in the process of cable locating the target optical cable, the normal transmission of the service light is not affected, and further, the normal use of the user's service application functions is not affected, thereby improving the robustness of the cable locating method for the communication optical cable in the embodiment of the present application.

[0115] The cable-finding and positioning principle of the communication optical cable provided in the embodiment of the present application is as follows: when the optical cable winding reels in the optical fiber well are entangled with each other and the target optical cable cannot be identified, the preset disturbance stress can be applied based on mechanical tools or manually at the preset optical cable detection position of the optical cable to be identified (i.e., the point position of the optical cable to be detected), and the polarization state information of the detection light currently transmitted by the target optical cable can be dynamically detected through the polarization light time domain reflectometer corresponding to the target optical cable. When the optical cable to be identified is not the target optical cable, the detected polarization state information is equivalent to that caused by the contact point between the optical cable to be identified and the target optical cable. Therefore, when the optical cable to be detected and the target optical cable are not the same optical cable, the detected polarization state information is relatively stable (a certain frequency change will not occur). When the optical cable to be detected and the target optical cable are the same optical cable, the polarization state information produces a certain frequency deviation change due to the preset disturbance stress on the optical fiber.

[0116] Among them, the embodiments of the present application relate to the field of transmission network communications, and in particular to the cable finding and positioning technology of communication optical cables in the OTN (Optical Transport Network) network operation and maintenance stage.

[0117] At the external optical fiber well, when external stress generated by mechanical or artificial means acts on the target optical cable, the POTDR can monitor the changes in polarization state or frequency deviation caused by the changes in external stress. Specifically, when external stress acts on non-target optical cables, the POTDR connected to the corresponding target optical cable cannot monitor the changes in polarization state or frequency deviation. Furthermore, the POTDR can locate the position of the target optical cable and report the position information to the asset management and operation system. Based on the multi-point positioning information, the operation and maintenance personnel can judge the consistency of the service route and the planned route, and troubleshoot the hidden dangers of route inconsistency in the network.

[0118] The present application proposes a method for finding a communication optical cable, an electronic device and a computer-readable storage medium. In the method for finding a communication optical cable, the technical solution of the embodiment of the present application is to dynamically detect the polarization state information of the detection light currently transmitted by the target optical cable through a polarization light time domain reflectometer corresponding to the target optical cable while applying a preset disturbance stress to the optical cable point to be detected, and then determine whether the optical cable to be identified at the optical cable point to be detected is the target optical cable based on the dynamically detected polarization state information.

[0119] Compared with the current optical cable locating method, the embodiment of the present application does not need to strip off the protective layer of the optical cable at the test point (i.e., the optical cable point to be detected) and bend the fiber core, so as not to damage the optical cable. In addition, the present embodiment uses the high-precision monitoring mechanism of polarized light for detection light, combined with the synaesthesia simultaneous transmission method or the non-synaesthesia simultaneous transmission method, to monitor the polarization state or frequency deviation changes caused by external stress (the external stress can be applied mechanically or manually), so that the embodiment of the present application can find the target optical cable more accurately, thereby improving the accuracy of cable locating and locating the optical cable, facilitating the accurate finding of the target optical cable in a complex existing network environment, and realizing the positioning of the target optical cable. In addition, the multi-point positioning information can be further combined to realize the route identification of the target optical cable, and provide accurate optical cable information for fault location, operation and maintenance cutover, etc.

[0120] In some embodiments, the step of determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the dynamically detected polarization state information comprises:

[0121] Converting the dynamically detected polarization state information into a polarization state dynamic image;

[0122] The polarization state dynamic image is output and displayed through a preset network management application display interface, wherein the polarization state dynamic image is used to indicate whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

[0123] Those skilled in the art will appreciate that the polarization state information refers to a polarization state signal detected by a polarization light time domain reflectometer.

[0124] In some embodiments, the step of determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the dynamically detected polarization state information comprises:

[0125] According to the dynamically detected polarization state information, identifying frequency deviation fluctuation information within a current preset monitoring period;

[0126] When the frequency deviation change value corresponding to the frequency deviation fluctuation information is greater than a preset threshold, determining that the optical cable to be identified at the optical cable point to be detected is the target optical cable;

[0127] When the frequency deviation change value corresponding to the frequency deviation fluctuation information is not greater than a preset threshold, it is determined that the optical cable to be identified at the optical cable point to be detected is not the target optical cable.

[0128] In some embodiments, the step of determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the dynamically detected polarization state information comprises:

[0129] Converting the dynamically detected polarization state information into a polarization state dynamic image;

[0130] Outputting and displaying the polarization state dynamic image through a preset network management application display interface;

[0131] The polarization state dynamic image displayed on the network management application display interface is collected, and image recognition processing is performed on the collected polarization state dynamic image to identify whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

[0132] In some embodiments, the method further comprises:

[0133] Under the condition that preset disturbance stress is applied to a plurality of different optical cable points to be detected in sequence, it is determined in sequence whether the optical cable to be identified at each of the optical cable points to be detected is the target optical cable according to the polarization state information detected dynamically;

[0134] The optical cable point to be detected on the target optical cable is taken as the target point, and two adjacent target points among the target points are connected by trajectories to construct point path information;

[0135] The planned optical cable direction of the target optical cable is determined according to the point path information.

[0136] In some embodiments, after determining the planned optical cable direction of the target optical cable according to the point path information, the method further includes:

[0137] Acquire preset service routing planning information, wherein the service routing planning information includes the service routing planning direction of the target optical cable;

[0138] According to the service route planning information, identifying whether the planned direction of the optical cable is consistent with the planned direction of the service route;

[0139] When it is identified that the direction is inconsistent with the service route planning, an alarm prompt message is output.

[0140] In some embodiments, the business light and the detection light transmitted by the target optical cable are in a synaesthesia mode or a non-synaesthesia mode, wherein in the non-synaesthesia mode, the business light and the detection light are transmitted through different optical fibers in the target optical cable.

[0141] The cable-finding method for a communication optical cable provided in an embodiment of the present invention adopts the same or similar technical features as the above-mentioned embodiment 1, and can solve the technical problem of how to improve the accuracy of cable-finding and positioning of the optical cable without causing damage to the optical cable. Compared with the prior art, the beneficial effects of the cable-finding device for a communication optical cable provided in an embodiment of the present invention are the same as the beneficial effects of the cable-finding method for a communication optical cable provided in the above-mentioned embodiment 1, and the other technical features in the cable-finding method for a communication optical cable are the same as the features disclosed in the above-mentioned embodiment method 1, and are not described in detail here.

[0142] Further, in order to help understand the technical principles of the embodiments of the present application, a specific embodiment 2 is listed, including:

[0143] In the present invention, a polarization optical time domain reflectometer (POTDR) is used to monitor the polarization state / frequency deviation changes with or without mechanical or artificial stress to achieve cable finding. The process of the whole solution is as follows: Figure 4 The detailed steps are as follows:

[0144] Step 101: Using a POTDR to monitor polarization state / frequency deviation changes in a target optical cable under mechanical or artificial stress.

[0145] Step 102: Using a POTDR to monitor polarization state / frequency deviation changes in the target optical cable without applying mechanical or artificial stress.

[0146] Step 103, calculating the degree of polarization state / frequency deviation change.

[0147] Step 104, determining whether it is the target optical cable.

[0148] In one embodiment, the polarization state / frequency deviation changes related to stress can be displayed in real time on the network management system interface (i.e., the network management application display interface described above), and whether it is a target optical cable can be determined by the polarization state / frequency deviation changes displayed in real time on the interface. In another embodiment, the frequency deviation change degree in the polarization state information of the target optical cable under the conditions of applying / not applying stress can be compared, and the frequency deviation change degree can be compared with a threshold value. When the frequency deviation change degree is greater than the threshold value, it is determined to be a target optical cable.

[0149] Please refer to Figure 7 , Figure 7This is a schematic diagram of the cable-finding scene of the communication optical cable in the third embodiment of the present application. Among them, the interface is used to display in real time to determine whether it is the target optical cable. Under the synaesthesia method, for standard single-mode optical fiber, POTDR can achieve synaesthesia through wavelength division multiplexing. For few-mode / multimode optical fiber, synaesthesia can be achieved through mode division multiplexing. For multi-core optical fiber, synaesthesia can be achieved through wavelength division multiplexing / core multiplexing. In the non-synaesthesia mode, POTDR needs to occupy a separate optical fiber. BOTDR monitors the change of polarization state when mechanical or artificial stress is applied / not applied, and displays it in real time on the network management / user function interface. By observing the level of change on the interface, it can be determined whether it is the target optical cable.

[0150] Please refer to Figure 8 , Figure 8 Schematic diagram of the cable-finding scenario of the communication optical cable in the fourth embodiment of the present application. Among them, POTDR is deployed at the sending site, and the threshold method is used to determine whether it is the target optical cable. Under the synaesthesia method, for standard single-mode optical fiber, POTDR can achieve synaesthesia through wavelength division multiplexing. For few-mode / multimode optical fiber, synaesthesia can be achieved through mode division multiplexing. For multi-core optical fiber, synaesthesia can be achieved through wavelength division multiplexing / core multiplexing. Under the non-synaesthesia mode, POTDR needs to occupy a separate optical fiber. POTDR monitors the change of polarization state when mechanical or artificial stress is applied / not applied, and compares the degree of change of polarization state / frequency deviation with a preset threshold by calculating the degree of change of polarization state / frequency deviation. When it is greater than the threshold, it is determined to be the target optical cable.

[0151] In this embodiment, if it is described that the optical cable is found by applying external stress to the target optical cable, and the polarization state and frequency deviation change of the target optical cable are displayed on the user function interface, the schematic diagram is as shown in FIG. Fig.11 As shown, Fig.11 The polarization state waveform shown in the rectangular box is the polarization state information generated by the preset disturbance stress.

[0152] During the normal operation of the network, the operation and maintenance personnel can use the method mentioned in this specific embodiment to accurately find the target optical cable in the complex existing network environment, and can realize the positioning of the target optical cable. Based on the multi-point positioning information, the optical cable routing direction can also be identified, thereby providing accurate optical cable information for fault location, operation and maintenance cutover, etc. This specific embodiment can also realize the inspection of the physical routing direction of the optical cable through the optical cable location information reported from multiple places.

[0153] It should be noted that the many details described in the second specific embodiment are only helpful for understanding the technical concept of the present application and do not constitute a limitation of the present application. More simple transformations based on the technical concept of the present application should all be within the scope of protection of the present application.

[0154] Embodiment 3

[0155] Based on the first embodiment of the present application, in another embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 3 This embodiment also provides a method for finding a communication optical cable, the method comprising:

[0156] Step S500, dynamically detecting polarization state information of the detection light currently transmitted by the target optical cable through the optical digital signal processing unit of the coherent optical module connected to the target optical cable, while applying a preset disturbance stress to the optical cable point to be detected;

[0157] In this embodiment, the optical cable point to be detected refers to a preset optical cable detection position on the optical cable to be identified, and a person skilled in the art can apply a preset disturbance stress to the optical cable point to be detected by a mechanical tool (such as a stress applying tool including an optical cable clamp and a vibration generator) or manually. The preset disturbance stress refers to a stress value applied within a preset time period that will produce a preset change.

[0158] Step S600: determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the polarization state information detected dynamically.

[0159] It is known to those skilled in the art that the polarization state information detected dynamically can be used to reflect the stress change information corresponding to each point along the optical fiber. This is because the refractive index of the optical fiber will change with the change of external stress. When high coherence light is used for detection, the phase of the reflected light at each point of the optical fiber will change with the change of stress value. The corresponding reflected light phase change is proportional to the value of the stress change of the optical fiber. Therefore, the target optical cable can be analyzed by detecting the reflected light phase change to determine whether it is subjected to the preset disturbance stress. Fig.11 As shown, Fig.11 The polarization state waveform shown in the rectangular box is the polarization state information generated by the preset disturbance stress.

[0160] Exemplarily, the service light and the detection light transmitted by the target optical cable are in a synaesthesia mode or a non-synaesthesia mode, wherein in the non-synaesthesia mode, the service light and the detection light are transmitted through different optical fibers in the target optical cable.

[0161] This embodiment can be used for cable finding by utilizing the optical digital signal processing unit (oDSP) of the coherent optical module in each station of the optical network. In the synaesthesia mode, the detection light received and sent by the optical module can achieve synaesthesia with the service light. For standard single-mode optical fiber, synaesthesia can be achieved through wavelength division multiplexing. For few-mode / multimode optical fiber, synaesthesia can be achieved through mode division multiplexing. For multi-core optical fiber, synaesthesia can be achieved through wavelength division multiplexing / core multiplexing.

[0162] In this embodiment, the service light and the detection light transmitted in the target optical cable are in a synaesthesia simultaneous transmission mode or a non-synaesthesia simultaneous transmission mode. In the non-synaesthesia simultaneous transmission mode, the service light and the detection light are transmitted through different optical fibers in the target optical cable. This ensures that in the process of cable locating the target optical cable, the normal transmission of the service light is not affected, and further, the normal use of the user's service application functions is not affected, thereby improving the robustness of the cable locating method for the communication optical cable in the embodiment of the present application.

[0163] The cable-finding and positioning principle of the communication optical cable provided in the embodiment of the present application is as follows: when the optical cable winding reels in the optical fiber well are entangled with each other and the target optical cable cannot be identified, the preset disturbance stress can be applied based on mechanical tools or manually at the preset optical cable detection position of the optical cable to be identified (i.e., the point position of the optical cable to be detected), and the polarization state information of the detection light currently transmitted by the target optical cable can be dynamically detected through the optical digital signal processing unit of the coherent optical module corresponding to the target optical cable. When the optical cable to be identified is not the target optical cable, the detected polarization state information is equivalent to that caused by the contact point between the optical cable to be identified and the target optical cable, so when the optical cable to be detected and the target optical cable are not the same optical cable, the detected polarization state information is relatively stable (a certain frequency change will not be generated). When the optical cable to be detected and the target optical cable are the same optical cable, the polarization state information produces a certain frequency deviation change due to the preset disturbance stress on the optical fiber.

[0164] Among them, the embodiments of the present application relate to the field of transmission network communications, and in particular to the cable finding and positioning technology of communication optical cables in the OTN (Optical Transport Network) network operation and maintenance stage.

[0165] At the external optical fiber well, when external stress generated by mechanical or artificial means acts on the target optical cable, the optical digital signal processing unit (oDSP) of the coherent optical module can monitor the changes in polarization state or frequency deviation caused by the changes in external stress. Specifically, when external stress acts on non-target optical cables, the oDSP connected to the corresponding target optical cable cannot monitor the changes in polarization state or frequency deviation. Furthermore, the oDSP can locate the position of the target optical cable and report the position information to the asset management and operation system. Based on the multi-point positioning information, the operation and maintenance personnel can judge the consistency of the service route and the planned route, and troubleshoot the hidden dangers of route inconsistency in the network.

[0166] The present application proposes a method for finding a communication optical cable, an electronic device and a computer-readable storage medium. In the method for finding a communication optical cable, the technical solution of the embodiment of the present application is to dynamically detect the polarization state information of the detection light currently transmitted by the target optical cable through the optical digital signal processing unit of the coherent optical module connected to the target optical cable while applying a preset disturbance stress to the optical cable point to be detected, and then determine whether the optical cable to be identified at the optical cable point to be detected is the target optical cable based on the dynamically detected polarization state information.

[0167] Compared with the current optical cable locating method, the embodiment of the present application does not need to peel off the protective layer of the optical cable at the test point (i.e., the optical cable point to be detected) and bend the fiber core, so as not to damage the optical cable. In addition, the present embodiment utilizes the high-precision monitoring mechanism of the optical digital signal processing unit (oDSP) for the detection light, combined with the synaesthesia simultaneous transmission method or the non-synaesthesia simultaneous transmission method, to monitor the polarization state or frequency deviation changes caused by external stress (the external stress can be applied mechanically or manually), so that the embodiment of the present application can find the target optical cable more accurately, thereby improving the accuracy of cable locating for the optical cable, facilitating the accurate finding of the target optical cable in a complex existing network environment, and realizing the positioning of the target optical cable. In addition, the multi-point positioning information can be further combined to realize the route direction identification of the target optical cable, and provide accurate optical cable information for fault location, operation and maintenance cutover, etc.

[0168] In some embodiments, the step of determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the dynamically detected polarization state information comprises:

[0169] Converting the dynamically detected polarization state information into a polarization state dynamic image;

[0170] The polarization state dynamic image is output and displayed through a preset network management application display interface, wherein the polarization state dynamic image is used to indicate whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

[0171] Those skilled in the art will appreciate that the polarization state information refers to a polarization state signal detected by an optical digital signal processing unit (oDSP).

[0172] In some embodiments, the step of determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the dynamically detected polarization state information comprises:

[0173] According to the dynamically detected polarization state information, identifying frequency deviation fluctuation information within a current preset monitoring period;

[0174] When the frequency deviation change value corresponding to the frequency deviation fluctuation information is greater than a preset threshold, determining that the optical cable to be identified at the optical cable point to be detected is the target optical cable;

[0175] When the frequency deviation change value corresponding to the frequency deviation fluctuation information is not greater than a preset threshold, it is determined that the optical cable to be identified at the optical cable point to be detected is not the target optical cable.

[0176] In some embodiments, the step of determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the dynamically detected polarization state information comprises:

[0177] Converting the dynamically detected polarization state information into a polarization state dynamic image;

[0178] Outputting and displaying the polarization state dynamic image through a preset network management application display interface;

[0179] The polarization state dynamic image displayed on the network management application display interface is collected, and image recognition processing is performed on the collected polarization state dynamic image to identify whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

[0180] In some embodiments, the method further comprises:

[0181] Under the condition that preset disturbance stress is applied to a plurality of different optical cable points to be detected in sequence, it is determined in sequence whether the optical cable to be identified at each of the optical cable points to be detected is the target optical cable according to the polarization state information detected dynamically;

[0182] The optical cable point to be detected on the target optical cable is taken as the target point, and two adjacent target points among the target points are connected by trajectories to construct point path information;

[0183] The planned optical cable direction of the target optical cable is determined according to the point path information.

[0184] In some embodiments, after determining the planned optical cable direction of the target optical cable according to the point path information, the method further includes:

[0185] Acquire preset service routing planning information, wherein the service routing planning information includes the service routing planning direction of the target optical cable;

[0186] According to the service route planning information, identifying whether the planned direction of the optical cable is consistent with the planned direction of the service route;

[0187] When it is identified that the direction is inconsistent with the service route planning, an alarm prompt message is output.

[0188] In some embodiments, the business light and the detection light transmitted by the target optical cable are in a synaesthesia mode or a non-synaesthesia mode, wherein in the non-synaesthesia mode, the business light and the detection light are transmitted through different optical fibers in the target optical cable.

[0189] The cable-finding method for a communication optical cable provided in an embodiment of the present invention adopts the same or similar technical features as the above-mentioned embodiment 1, and can solve the technical problem of how to improve the accuracy of cable-finding and positioning of the optical cable without causing damage to the optical cable. Compared with the prior art, the beneficial effects of the cable-finding device for a communication optical cable provided in an embodiment of the present invention are the same as the beneficial effects of the cable-finding method for a communication optical cable provided in the above-mentioned embodiment 1, and the other technical features in the cable-finding method for a communication optical cable are the same as the features disclosed in the above-mentioned embodiment method 1, and are not described in detail here.

[0190] Further, in order to help understand the technical principles of the embodiments of the present application, a specific embodiment 3 is listed, including:

[0191] In the present invention, the optical digital signal processing unit (oDSP) of the coherent optical module is used to monitor the polarization state and frequency deviation changes with or without mechanical or artificial stress to achieve cable finding. The process of the whole solution is as follows: Figure 4 The detailed steps are as follows:

[0192] Step 101: Under the condition of applying mechanical or artificial stress, use the coherent optical module oDSP to monitor the polarization state / frequency deviation change in the target optical cable.

[0193] Step 102: monitor polarization state / frequency deviation changes in the target optical cable using a coherent optical module oDSP without applying mechanical or artificial stress.

[0194] Step 103, calculating the degree of polarization state / frequency deviation change.

[0195] Step 104, determining whether it is the target optical cable.

[0196] In one embodiment, the polarization state / frequency deviation changes related to stress can be displayed in real time on the network management system interface (i.e., the network management application display interface described above), and whether it is a target optical cable can be determined by the polarization state / frequency deviation changes displayed in real time on the interface. In another embodiment, the frequency deviation change degree in the polarization state information of the target optical cable under the conditions of applying / not applying stress can be compared, and the frequency deviation change degree can be compared with a threshold value. When the frequency deviation change degree is greater than the threshold value, it is determined to be a target optical cable.

[0197] Please refer to Fig. 9 , Fig. 9 This is a schematic diagram of the cable-finding scenario for communication optical cables in the fifth embodiment of the present application. Among them, the interface is used to display in real time to determine whether it is the target optical cable. Since the coherent optical module is the basic component unit of the optical network, the service optical module can be used directly for cable finding, and inter-sensory integration can be achieved. The oDSP in the coherent optical module is used at the receiving site to monitor the changes in the polarization state frequency deviation of the target optical cable when mechanical or artificial stress is applied / not applied, and it is displayed in real time on the network management / user function interface. By observing the level of change on the interface, it can be determined whether it is the target optical cable.

[0198] Please refer to Fig.10 , Fig.10 This is a schematic diagram of the cable-finding scenario of the communication optical cable in the sixth embodiment of the present application. Among them, the threshold method is used to determine whether it is the target optical cable. Since the coherent optical module is the basic component unit of the optical network, the service optical module can be used for cable finding, and interaceptive integration can be achieved. The oDSP in the coherent optical module is used at the receiving site to monitor the polarization state and frequency deviation changes of the target optical cable when mechanical or artificial stress is applied / not applied, and the threshold method is used to judge that when the degree of change is greater than the threshold, it is the target optical cable.

[0199] In this embodiment, if it is described that the optical cable is found by applying external stress to the target optical cable, and the polarization state and frequency deviation change of the target optical cable are displayed on the user function interface, the schematic diagram is as shown in FIG. Fig.11 As shown, Fig.11 The polarization state waveform shown in the rectangular box is the polarization state information generated by the preset disturbance stress.

[0200] During the normal operation of the network, the operation and maintenance personnel can use the method mentioned in this specific embodiment to accurately find the target optical cable in the complex existing network environment, and can realize the positioning of the target optical cable. Based on the multi-point positioning information, the optical cable routing direction can also be identified, thereby providing accurate optical cable information for fault location, operation and maintenance cutover, etc. This specific embodiment can also realize the inspection of the physical routing direction of the optical cable through the optical cable location information reported from multiple places.

[0201] It should be noted that the many details described in the third specific embodiment are only helpful for understanding the technical concept of the present application and do not constitute a limitation of the present application. More simple transformations based on the technical concept of the present application should all be within the scope of protection of the present application.

[0202] Embodiment 4

[0203] An embodiment of the present invention provides an electronic device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the cable finding method of the communication optical cable in the above-mentioned embodiment one.

[0204] Reference below Fig.12 , which shows a schematic diagram of the structure of an electronic device suitable for implementing the embodiments of the present disclosure. Fig.12 As shown, the electronic device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM 1002) or a program loaded from a storage device into a random access memory (RAM 1004). In RAM 1004, various programs and data required for the operation of the electronic device are also stored. The processing device 1001, ROM 1002, and RAM 1004 are connected to each other via a bus 1005. An input / output (I / O) interface is also connected to the bus 1005.

[0205] Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 1009. The communication device 1009 can allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows an electronic device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have alternatively.

[0206] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment of the present disclosure are executed.

[0207] The electronic device provided by the present invention adopts the method for finding a communication optical cable in the above embodiment, which can solve the technical problem of how to improve the accuracy of finding and locating the optical cable without damaging the optical cable. Compared with the prior art, the beneficial effects of the electronic device provided by the embodiment of the present invention are the same as the beneficial effects of the method for finding a communication optical cable provided by the above embodiment, and the other technical features of the electronic device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0208] It should be understood that the various parts of the present disclosure can be implemented with hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0209] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

[0210] Embodiment 5

[0211] An embodiment of the present invention provides a computer-readable storage medium having computer-readable program instructions stored thereon, and the computer-readable program instructions are used to execute the communication optical cable locating method in the above embodiment.

[0212] The computer-readable storage medium provided in the embodiment of the present invention may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination thereof.

[0213] The computer-readable storage medium may be included in the electronic device, or may exist independently without being installed in the electronic device.

[0214] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the electronic device, the electronic device: when applying a preset disturbance stress to the optical cable point to be detected, dynamically detect the polarization state information of the detection light currently transmitted by the target optical cable through the Brillouin optical time domain reflectometer connected to the target optical cable; determine whether the optical cable to be identified at the optical cable point to be detected is the target optical cable based on the dynamically detected polarization state information. Alternatively, when applying a preset disturbance stress to the optical cable point to be detected, dynamically detect the polarization state information of the detection light currently transmitted by the target optical cable through the optical digital signal processing unit of the coherent optical module connected to the target optical cable; determine whether the optical cable to be identified at the optical cable point to be detected is the target optical cable based on the dynamically detected polarization state information. Alternatively, when a preset disturbance stress is applied to the optical cable point to be detected, the polarization state information of the detection light currently transmitted by the target optical cable is dynamically detected through a polarization light time domain reflectometer corresponding to the target optical cable; based on the dynamically detected polarization state information, it is determined whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

[0215] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages, such as Java, Smalltalk, C++, and conventional procedural programming languages, such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0216] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present invention. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0217] The modules involved in the embodiments described in the present disclosure may be implemented by software or hardware, wherein the name of the module does not limit the unit itself in some cases.

[0218] The computer-readable storage medium provided by the present invention stores computer-readable program instructions for executing the above-mentioned communication optical cable locating method, which can solve the technical problem of how to improve the accuracy of locating the optical cable without damaging the optical cable. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the embodiment of the present invention are the same as the beneficial effects of the communication optical cable locating method provided by the above-mentioned embodiments 1 to 3, and will not be repeated here.

[0219] Embodiment 6

[0220] An embodiment of the present invention further provides a computer program product, including a computer program, which implements the steps of the above-mentioned method for finding a communication optical cable when executed by a processor.

[0221] The computer program product provided by the present application can solve the technical problem of how to improve the accuracy of locating the optical cable without damaging the optical cable. Compared with the prior art, the beneficial effects of the computer program product provided by the embodiment of the present invention are the same as the beneficial effects of the method for locating the communication optical cable provided by the above-mentioned embodiments 1 to 3, and will not be described in detail here.

[0222] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent processing scope of the present application.

Claims

1. A method for finding a communication optical cable, characterized in that: include: Under the condition that a preset disturbance stress is applied to the point of the optical cable to be detected, the polarization state information of the detection light currently transmitted by the target optical cable is dynamically detected by a Brillouin optical time domain reflectometer correspondingly connected to the target optical cable; According to the dynamically detected polarization state information, it is determined whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

2. The method for finding a communication optical cable according to claim 1, characterized in that: The step of determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the polarization state information detected dynamically comprises: Converting the dynamically detected polarization state information into a polarization state dynamic image; The polarization state dynamic image is output and displayed through a preset network management application display interface, wherein the polarization state dynamic image is used to indicate whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

3. The method for finding a communication optical cable according to claim 1, characterized in that: The step of determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the polarization state information detected dynamically comprises: According to the dynamically detected polarization state information, identifying frequency deviation fluctuation information within a current preset monitoring period; When the frequency deviation change value corresponding to the frequency deviation fluctuation information is greater than a preset threshold, determining that the optical cable to be identified at the optical cable point to be detected is the target optical cable; When the frequency deviation change value corresponding to the frequency deviation fluctuation information is not greater than a preset threshold, it is determined that the optical cable to be identified at the optical cable point to be detected is not the target optical cable.

4. The method for finding a communication optical cable according to claim 1, characterized in that: The step of determining whether the optical cable to be identified at the optical cable point to be detected is the target optical cable according to the polarization state information detected dynamically comprises: Converting the dynamically detected polarization state information into a polarization state dynamic image; Outputting and displaying the polarization state dynamic image through a preset network management application display interface; The polarization state dynamic image displayed on the network management application display interface is collected, and image recognition processing is performed on the collected polarization state dynamic image to identify whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

5. The method for finding a communication optical cable according to claim 1, characterized in that: The method further comprises: Under the condition that preset disturbance stress is applied to a plurality of different optical cable points to be detected in sequence, it is determined in sequence whether the optical cable to be identified at each of the optical cable points to be detected is the target optical cable according to the polarization state information detected dynamically; The optical cable point to be detected on the target optical cable is taken as the target point, and two adjacent target points among the target points are connected by trajectories to construct point path information; The planned optical cable direction of the target optical cable is determined according to the point path information.

6. The method for finding a communication optical cable according to claim 5, characterized in that: After determining the planned optical cable direction of the target optical cable according to the point path information, the method further includes: Acquire preset service routing planning information, wherein the service routing planning information includes the service routing planning direction of the target optical cable; According to the service route planning information, identifying whether the planned direction of the optical cable is consistent with the planned direction of the service route; When it is identified that the direction is inconsistent with the service route planning, an alarm prompt message is output.

7. The method for finding a communication optical cable according to any one of claims 1 to 6, characterized in that: The service light and the detection light transmitted by the target optical cable are in a synaesthesia mode or a non-synaesthesia mode, wherein in the non-synaesthesia mode, the service light and the detection light are transmitted through different optical fibers in the target optical cable.

8. A method for finding a communication optical cable, characterized in that: include: Under the condition that a preset disturbance stress is applied to the optical cable point to be detected, the polarization state information of the detection light currently transmitted by the target optical cable is dynamically detected by a polarization time domain reflectometer correspondingly connected to the target optical cable; According to the dynamically detected polarization state information, it is determined whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

9. A method for finding a communication optical cable, characterized in that: include: Under the condition that a preset disturbance stress is applied to the optical cable point to be detected, the polarization state information of the detection light currently transmitted by the target optical cable is dynamically detected through the optical digital signal processing unit of the coherent optical module correspondingly connected to the target optical cable; According to the dynamically detected polarization state information, it is determined whether the optical cable to be identified at the optical cable point to be detected is the target optical cable.

10. An electronic device, characterized in that: include: A memory, a processor, and a communication optical cable locating program stored in the memory and executable on the processor, wherein the communication optical cable locating program, when executed by the processor, implements the communication optical cable locating method as claimed in any one of claims 1 to 9.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a communication optical cable locating program, and when the communication optical cable locating program is executed by a processor, the communication optical cable locating method according to any one of claims 1 to 9 is implemented.

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