CN116614176A - Multi-purpose optical cable operation and maintenance system based on cloud platform - Google Patents
Multi-purpose optical cable operation and maintenance system based on cloud platform Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
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- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
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Abstract
The invention provides a cloud platform-based multipurpose optical cable operation and maintenance system, which comprises a field detection module, a signal receiving and transmitting module, an operation and maintenance terminal and a cloud computing module, wherein the field detection module is used for generating knocking at a target detection point; the signal receiving and transmitting module is used for accessing an idle fiber core of the target optical cable in the machine room, transmitting continuous incident optical signals to the idle fiber core, receiving return optical signals returned by the idle fiber core, and transmitting the return optical signals to the cloud computing module; the cloud computing module detects whether a target optical cable exists near the target detection point according to the obtained return signal, and an optical cable detection result is obtained; further calculating the distance from the target detection point to the optical cable of the machine room according to the acquired return signal to obtain a distance detection result; transmitting the obtained optical cable detection result and the distance detection result to an operation and maintenance terminal; the operation and maintenance terminal is used for displaying the obtained optical cable detection result and the distance detection result. The invention is beneficial to reducing the labor cost of the operation and maintenance work of the optical cable and improving the operation and maintenance work efficiency.
Description
Technical Field
The invention relates to the technical field of optical cable operation and maintenance, in particular to a cloud platform-based multipurpose optical cable operation and maintenance system.
Background
The optical cable is an important carrier for information transmission, is a passive asset, is usually laid along a road, and is easy to damage and break due to municipal construction on the road surface, so that signal transmission is affected, and further adverse effects such as application jamming and interruption are caused. Currently, when an optical cable needs to be operated, a method which is commonly used at present is to assign operation staff to arrive at a site for operation and maintenance on the site according to the obtained fault electric positioning information.
However, the fault location information is expanded to provide approximate location information, when an operation and maintenance person arrives at the site according to the fault location information, for example, when an optical cable is laid under the site, a plurality of well covers exist in the site at the same time, so that the operation and maintenance person cannot find the closest optical cable well cover along the line, and a great deal of manpower is required to find the actual position of the optical cable, which results in low target optical cable finding efficiency and large workload and directly influences the efficiency of fault rush-repair.
Disclosure of Invention
Aiming at the technical problems of low efficiency and large workload of the traditional optical cable searching, the invention aims to provide a multipurpose optical cable operation and maintenance system based on a cloud platform.
The aim of the invention is realized by adopting the following technical scheme:
the invention provides a multipurpose optical cable operation and maintenance system based on a cloud platform, which comprises a field detection module, a signal receiving and transmitting module, an operation and maintenance terminal and a cloud computing module,
the field detection module is used for generating knocking at the target detection point;
the signal receiving and transmitting module is used for accessing an idle fiber core of the target optical cable in the machine room, transmitting continuous incident optical signals to the idle fiber core, receiving return optical signals returned by the idle fiber core, and transmitting the return optical signals to the cloud computing module;
the cloud computing module detects whether a target optical cable exists near the target detection point according to the obtained return signal, and an optical cable detection result is obtained; under the condition that the target optical cable is detected, the distance between the target detection point and the optical cable of the machine room is further calculated according to the acquired return signal, and a distance detection result is obtained; transmitting the obtained optical cable detection result and the distance detection result to an operation and maintenance terminal;
the operation and maintenance terminal is used for recording the position of the knocking point and displaying the obtained optical cable detection result and the obtained distance detection result.
Preferably, the field detection module comprises an intelligent knocking unit;
the intelligent knocking unit is used for knocking the rubber hammer at the target detection point with a specified impact force, so that the vibration generated at the target detection point affects the target optical cable, and knocking information is transmitted to the cloud computing module.
Wherein the tapping information includes time information and location information at which the tapping occurs.
Preferably, the field detection module further comprises an environment acquisition unit;
the environment acquisition unit is used for acquiring environment information of the target detection point, wherein the environment information comprises detection point surface temperature information and humidity information, and the acquired environment information is added into knocking information.
Preferably, the field detection module further comprises a positioning unit;
the positioning unit is used for recording the position information of the target detection point, transmitting the obtained position information to the cloud computing module, and further transmitting the position information to the operation and maintenance terminal through the cloud computing module.
Preferably, the signal transceiver module comprises a transmitting unit, a modulating unit and a receiving unit; wherein the method comprises the steps of
The transmitting unit is used for transmitting continuous laser to the accessed idle fiber cores;
the modulation unit is connected with the output end of the laser unit and is used for modulating continuous laser into a pulse optical signal and inputting the pulse optical signal into the idle fiber core;
the receiving unit is used for receiving a return light signal generated after the idle fiber core is affected by vibration, converting the acquired return light signal into a digital signal and transmitting the digital signal to the cloud computing module.
Preferably, the cloud computing module comprises an optical cable detection unit, a distance computing unit and a transmission unit; wherein, the liquid crystal display device comprises a liquid crystal display device,
the optical cable detection unit is used for detecting whether a target optical cable exists near the target detection point according to the acquired return optical signal to obtain an optical cable detection result;
the distance calculation unit is used for further calculating the distance from the target detection point to the optical cable of the machine room according to the acquired return signal when the existence of the target optical cable near the target detection point is monitored according to the return optical signal, so as to obtain a distance detection result;
the transmission unit is used for transmitting the obtained optical cable detection result and the distance detection result to the operation and maintenance terminal.
Preferably, the optical cable detecting unit detects whether or not there is a target optical cable in the vicinity of the target detection point based on the acquired return optical signal, and specifically includes:
preprocessing according to the acquired return light signals to obtain preprocessed return light signals;
carrying out maximum extraction according to the preprocessed return light signals to obtain space-time information and intensity information corresponding to the maximum signal values;
comparing the space-time information at the maximum value with the space-time information in the knocking information to obtain a space-time matching result, and matching according to the intensity information at the maximum value and a set intensity threshold to obtain an intensity matching result; and outputting a result of successfully detecting the target optical cable when the space-time matching result and the intensity matching result meet the standards, and marking the maximum position in the signal.
Preferably, the distance calculating unit calculates a distance from the target detection point to the optical cable of the machine room according to the acquired return signal, and specifically includes:
acquiring total time t from signal transmission to reception according to the marked maximum position of the obtained return light signal 12 ；
The distance from the target detection point to the machine room optical cable is calculated by adopting the following formula:
wherein d gj Represents the distance from the target detection point to the optical cable of the machine room, c represents the speed of light, and tem x Representing a temperature compensation coefficient calculated from the acquired temperature information of the surface of the target detection point, wherein tem x ∈[0.95,1.05]When the acquired temperature information is higher, the compensation coefficient is smaller; ref (ref) g Representing the standard refractive index of the free core, obtained from the production parameters of the free core.
Preferably, the operation and maintenance terminal comprises a control unit and a display unit;
the control unit is used for sending a knocking control instruction to the field detection module so that the field detection module can complete knocking on the target detection point according to the obtained knocking control instruction; the signal receiving and transmitting module is used for receiving the signal control instruction from the idle fiber core;
the display unit is used for receiving the optical cable detection result, the distance detection result and/or the optical cable identification result transmitted by the cloud computing module.
Preferably, the transmitting unit is further configured to transmit a high-frequency carrier signal to the accessed idle fiber core, and transmit corresponding characteristic information of the high-frequency carrier signal to the cloud computing module.
Preferably, the field detection module further comprises an optical cable identification unit;
the optical cable identification unit is used for acquiring signals of the target optical cable through the receiver, amplifying the acquired signals to obtain carrier detection signals, and transmitting the acquired carrier detection signals to the cloud computing module.
Preferably, the cloud computing module further comprises an optical cable identification unit;
the optical cable identification unit is used for carrying out high-frequency feature extraction according to the obtained carrier detection signal to obtain high-frequency feature extraction information, and carrying out matching according to the obtained high-frequency feature extraction information and the feature information of the high-frequency carrier signal, and outputting an optical cable identification result when the high-frequency feature extraction information and the feature information are successfully matched.
The beneficial effects of the invention are as follows: when detecting that a target optical cable breaks down or the operation and maintenance of the target optical cable are required, the system firstly sets a signal receiving and transmitting module in a machine room, and the signal receiving and transmitting module is connected into an idle fiber core reserved by the target optical cable so that the signal receiving and transmitting module transmits detection signals to the idle fiber core; meanwhile, after the operation and maintenance personnel arrive at the approximate optical cable fault site according to the fault positioning information, a site detection module is arranged on a target detection point (such as a manhole cover, a tower and the like) possibly corresponding to a target optical cable path so as to knock a target monitoring point; after a return signal generated based on the backscattering and Fresnel reverse principle of light is obtained through the signal receiving and transmitting module, the return signal is transmitted to the cloud computing module, the cloud computing module performs centralized data processing, a corresponding optical cable detection result and a corresponding distance detection result are obtained, and the obtained results are displayed through the operation and maintenance terminal. The method is beneficial to operation and maintenance personnel to quickly find the accurate position of the target optical cable on the operation and maintenance site, further operation and maintenance treatment is carried out on the target optical cable, the efficiency and accuracy of the operation and maintenance personnel for finding the target optical cable are improved, the requirements of different scenes are met, the operation that the operation and maintenance personnel need to repeatedly go on a large number of rods to go into the well is avoided, the labor cost of operation and maintenance work is reduced, and the operation and maintenance work efficiency is improved.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is a frame structure diagram of a multipurpose optical cable operation and maintenance system based on a cloud platform according to an embodiment of the present invention.
Detailed Description
The invention is further described in connection with the following application scenario.
Referring to the embodiment of fig. 1, the multipurpose optical cable operation and maintenance system based on the cloud platform comprises a field detection module, a signal transceiver module, an operation and maintenance terminal and a cloud computing module,
the field detection module is used for generating knocking at the target detection point;
the signal receiving and transmitting module is used for accessing an idle fiber core of the target optical cable in the machine room, transmitting continuous incident optical signals to the idle fiber core, receiving return optical signals returned by the idle fiber core, and transmitting the return optical signals to the cloud computing module;
the cloud computing module detects whether a target optical cable exists near the target detection point according to the obtained return signal, and an optical cable detection result is obtained; under the condition that the target optical cable is detected, the distance between the target detection point and the optical cable of the machine room is further calculated according to the acquired return signal, and a distance detection result is obtained; transmitting the obtained optical cable detection result and the distance detection result to an operation and maintenance terminal;
the operation and maintenance terminal is used for recording the position of the knocking point and displaying the obtained optical cable detection result and the obtained distance detection result.
According to the embodiment of the invention, when the fault of the target optical cable is detected or the operation and maintenance of the target optical cable are required, the signal receiving and transmitting module is arranged in the machine room, and the signal receiving and transmitting module is connected into the reserved idle fiber cores of the target optical cable, so that the signal receiving and transmitting module transmits detection signals to the idle fiber cores; meanwhile, after the operation and maintenance personnel arrive at the approximate optical cable fault site according to the fault positioning information, a site detection module is arranged on a target detection point (such as a manhole cover, a tower and the like) possibly corresponding to a target optical cable path so as to knock a target monitoring point; after a return signal generated based on the backscattering and Fresnel reverse principle of light is obtained through the signal receiving and transmitting module, the return signal is transmitted to the cloud computing module, the cloud computing module performs centralized data processing, a corresponding optical cable detection result and a corresponding distance detection result are obtained, and the obtained results are displayed through the operation and maintenance terminal. The method is beneficial to operation and maintenance personnel to quickly find the accurate position of the target optical cable on the operation and maintenance site, further operation and maintenance treatment is carried out on the target optical cable, the efficiency and accuracy of the operation and maintenance personnel for finding the target optical cable are improved, the requirements of different scenes are met, the operation that the operation and maintenance personnel need to repeatedly go on a large number of rods to go into the well is avoided, the labor cost of operation and maintenance work is reduced, and the operation and maintenance work efficiency is improved.
Preferably, the field detection module comprises an intelligent knocking unit;
the intelligent knocking unit is used for knocking the rubber hammer at the target detection point with a specified impact force, so that the vibration generated at the target detection point affects the target optical cable, and knocking information is transmitted to the cloud computing module.
Wherein the tapping information includes time information and location information at which the tapping occurs.
The on-site detection module can generate standard knocking impact on the target detection point according to preset alignment in an intelligent control mode, so that the target optical cable is influenced by the knocking impact force; which helps to increase the level of standardization of the field detection module. Meanwhile, the on-site detection module can also finish knocking the target detection point in a manual operation mode.
Preferably, the field detection module further comprises an environment acquisition unit;
the environment acquisition unit is used for acquiring environment information of the target detection point, wherein the environment information comprises detection point surface temperature information and humidity information, and the acquired environment information is added into knocking information.
The humidity information of different target detection points (such as a manhole cover, a tower and the like) can influence the impact of knocking impact force; and the temperature information of the scene where the optical cable is located also affects the temperature attribute and affects the accuracy of subsequent further analysis, so that in the process of data acquisition, the environment information of the scene where the optical cable is located is acquired and uploaded to the cloud computing module for recording, and related information can be called when the subsequent analysis is facilitated.
Preferably, the field detection module further comprises a positioning unit;
the positioning unit is used for recording the position information of the target detection point, transmitting the obtained position information to the cloud computing module, and further transmitting the position information to the operation and maintenance terminal through the cloud computing module.
By recording the positioning information of the target detection point, when the target optical cable is detected, the path information of the target optical cable can be marked and updated according to the recorded positioning information, so that the record file of the path information of the optical cable can be established, repeated searching work of subsequent operation and maintenance work is avoided, and the data management level of the operation and maintenance work of the optical cable is improved.
Preferably, the signal transceiver module comprises a transmitting unit, a modulating unit and a receiving unit; wherein the method comprises the steps of
The transmitting unit is used for transmitting continuous laser to the accessed idle fiber cores;
the modulation unit is connected with the output end of the laser unit and is used for modulating continuous laser into a pulse optical signal and inputting the pulse optical signal into the idle fiber core;
the receiving unit is used for receiving a return light signal generated after the idle fiber core is affected by vibration, converting the acquired return light signal into a digital signal and transmitting the digital signal to the cloud computing module.
The signal receiving and transmitting module is arranged in the machine room, is accessed into an idle fiber core in the target optical cable through the signal receiving and transmitting module and transmits corresponding optical signals, and can be used as signal basis for optical cable detection, distance calculation and optical cable identification. And the received return light signals are subjected to digital processing and transmitted to a cloud computing module in real time for further analysis and computation.
Preferably, the cloud computing module comprises an optical cable detection unit, a distance computing unit and a transmission unit; wherein, the liquid crystal display device comprises a liquid crystal display device,
the optical cable detection unit is used for detecting whether a target optical cable exists near the target detection point according to the acquired return optical signal to obtain an optical cable detection result;
the distance calculation unit is used for further calculating the distance from the target detection point to the optical cable of the machine room according to the acquired return signal when the existence of the target optical cable near the target detection point is monitored according to the return optical signal, so as to obtain a distance detection result;
the transmission unit is used for transmitting the obtained optical cable detection result and the distance detection result to the operation and maintenance terminal.
The cloud computing module is built based on a cloud platform, and based on the strong computing capability of the cloud platform, the obtained returned optical signals are subjected to centralized intelligent analysis and processing and wireless transmission of results, so that the data computing capability and the data transmission capability of the system can be improved, and the optical cable searching and identifying efficiency is further improved.
The routing trend of the optical cable, the coiling information of the optical cable, the routing foldback, the fiber dividing point, the connector box, the breakpoint of the optical cable, the position of the loss point and the like can be checked by acquiring the length of the optical cable from the machine room at the current knocking point and based on the length.
Preferably, the optical cable detecting unit detects whether or not there is a target optical cable in the vicinity of the target detection point based on the acquired return optical signal, and specifically includes:
preprocessing according to the acquired return light signals to obtain preprocessed return light signals;
carrying out maximum extraction according to the preprocessed return light signals to obtain space-time information and intensity information corresponding to the maximum signal values;
comparing the space-time information at the maximum value with the space-time information in the knocking information to obtain a space-time matching result, and matching according to the intensity information at the maximum value and a set intensity threshold to obtain an intensity matching result; and outputting a result of successfully detecting the target optical cable when the space-time matching result and the intensity matching result meet the standards, and marking the maximum position in the signal.
The optical cable detection unit firstly carries out pretreatment according to the acquired return optical signals, so that the quality of the return optical signals can be improved; meanwhile, the optical signal is returned to carry out maximum detection, the peak position in the optical signal can be detected, and whether the optical cable is affected by vibration generated by knocking or not is judged according to the intensity and space-time information of the maximum position, so that whether the target optical cable exists in the peripheral range of the target detection point is judged; when the signal intensity according to the maximum position exceeds the standard threshold value of the vibration signal generated by knocking, the influence of knocking vibration on the target optical cable is indicated, meanwhile, whether the time-space information corresponds to the vibration impact generated by knocking the target detection point is judged according to the time and position information corresponding to the maximum position, when the deviation between the time-space information of the maximum position and the time-space information recorded according to knocking is smaller than a preset range value, the signal maximum position corresponds to the knocking is judged, the influence of the knocking on the target optical cable is judged, the influence of the target optical cable is indicated to be near the target detection point, and the target detection point is a path position corresponding to the target optical cable; the operation and maintenance personnel can further go down the well or climb the pole according to the target detection point, so that the target optical cable is further searched.
The invention also particularly provides a technical scheme for preprocessing the obtained return optical signals, which considers the condition that the obtained return optical signals are interfered by noise due to the fact that the return optical signals in the idle fiber cores are easily influenced by surrounding environment factors in the receiving and interfering processes of the obtained return optical signals, and comprises the following steps:
preferably, the optical cable detection unit performs preprocessing according to the acquired return optical signal, and specifically includes:
CEEMD (complementary empirical mode decomposition) is performed according to the obtained return optical signal to obtain K IMF components { Sig } of the return optical signal imf1 ,Sig imf2 ,…,Sig imfK Sum of margins Sig CC ；
And respectively calculating first characteristic factors of the IMF components, wherein the adopted first characteristic factor calculation function is as follows:
wherein fac (K) represents the first characteristic factor of the kth IMF component, k=1, 2, … K-1, sig imfk (n) represents the magnitude of the nth sample point in the kth IMF component, n=1, 2, … L, L represents the total number of sample points, mean (Sig imfk ) Representing the average amplitude, sigma, of each sample point in the kth IMF component Sigimfk Representing the variance, rate, of the amplitude of each sample point in the kth IMF component zero (k) A zero-crossing rate representing a kth IMF component; omega 1 And omega 2 Representing the weight factor;
a high-low frequency division is performed once according to a first characteristic factor of each IMF component, wherein a division factor p=argmax (fac (k)) is determined, and { Si imf1 ,…,Si imfp-1 The IMF component of } is labeled as a high frequency IMF component, { Sig } imfp ,Sig imfp+ Marked as the next highest frequency IMF component, { Sig imfp+2 ,…,Sig imfK Marked as low frequency IMF component;
from the resulting second highest frequency IMF component Sig imfp ,Sig imfp+1 Reconstructing to obtain a secondary high-frequency signal Sig shf And for the obtained secondary high frequency signal Sig shf Performing secondary CEEMD decomposition to obtain J IMF components { Sig }, of the secondary high-frequency signal Simf1 ,Si Simf2 ,…,Sig simfJ Sum of margins Sig SCC ；
And according to a second characteristic factor of the acquired IMF component, the adopted second characteristic factor calculating function is as follows:
wherein fac2 (j) represents the second characteristic factor of the jth IMF component, si Simfj (n) represents the magnitude of the nth sample point in the jth IMF component, mean (Sig) Simfj ) Representing the average amplitude of each sample point in the jth IMF component,representing the amplitude variance of each sampling point in the jth IMF component;
performing a second high-low frequency division according to a second characteristic factor of each IMF component, wherein a division factor q=argmax (fac 2 (q)) is determined, and { Si Simf1 ,…,Si Simf The IMF components of } are marked as high frequency IMF components, the remaining IMF components { Sig } Simfq+1 ,…,Si SimfJ Marked as low frequency IMF component;
based on the obtained high-frequency IMF component { Sig } imf1 ,…,Sig imfp }、{Sig Simf1 ,…,Sig simfq Reconstructing to obtain high-frequency component signal sig H The method comprises the steps of carrying out a first treatment on the surface of the Based on the obtained low-frequency IMF component { Sig } imfp ,…,Sig imfK }、{Sig Simfq+1 ,…,Si SimfJ Reconstructing to obtain low-frequency component signal sig L ；
Based on the obtained high-frequency component signal sig H And performing filtering processing, wherein the adopted filtering processing function is as follows:
wherein sig' h (n) the amplitude of the nth sample point in the filtered high-frequency component signal sIG l (N) represents the amplitude, sig, of the nth sample point in the low frequency component signal H (n) the amplitude, sigma, of the nth sample point in the high frequency component signal H (n) represents the standard deviation of the amplitude of each sampling point in the local range centered on the nth sampling point in the high-frequency component signal, mean H (n) represents the average amplitude, σ, of each sampling point in the local range centered on the nth sampling point in the high-frequency component signal H (sig H ) Representing the standard deviation of the amplitude of each sampling point in the high-frequency component signal, mean H (sig H ) Represents the average amplitude of each sampling point in the high frequency component signal, delta represents the filter factor, wherein delta epsilon [0.1,0.3]The method comprises the steps of carrying out a first treatment on the surface of the Y represents a set filtering threshold value, in which
According to the filtered high-frequency component signal si' H And a low frequency component signal si L And reconstructing to obtain the preprocessed return light signal.
Preferably, the local range is a range of 0.1L in length centered on the nth sampling point.
In particular, in the preprocessing of the obtained return optical signal, the return optical signal is first decomposed based on CEEMD technology to obtain primary decomposed IMF components of the return optical signal, and according to the characteristics of the return optical signal, a first characteristic factor is provided to calculate the characteristic value of each IMF component, so that each IMF component can be divided into a high frequency component, a sub-high frequency component and a low frequency component according to the characteristic value obtained by the overall change characteristic between IMF components; in the conventional high-low frequency division scheme, the mixed signals are easily subjected to one-cut division, so that the high-low frequency division effect is poor, and the effect of subsequent filtering processing is affected. And finally, filtering processing is carried out according to the high-frequency component signals obtained by dividing, the processing area is screened based on the local change characteristics of the high-frequency component signals through the proposed filtering processing function, the situation that the characteristic sections containing more characteristic information are processed is avoided, meanwhile, the noise interference of the flat signal sections is suppressed to the greatest extent, the signal to noise ratio of the signals is improved, the characteristic information (maximum characteristic information) of the return optical signals is reserved while the noise influence of the environmental factors is proposed, and the accuracy of further maximum characteristic extraction and optical cable detection according to the preprocessed signals is indirectly improved.
Preferably, the distance calculating unit calculates a distance from the target detection point to the optical cable of the machine room according to the acquired return signal, and specifically includes:
acquiring total time t from signal transmission to reception according to the marked maximum position of the obtained return light signal 12 ；
The distance from the target detection point to the machine room optical cable is calculated by adopting the following formula:
wherein d gj Represents the distance from the target detection point to the optical cable of the machine room, c represents the speed of light, te x Representing a temperature compensation coefficient calculated from the acquired temperature information of the surface of the target detection point, wherein tem x ∈[0.95,1.05]When the acquired temperature information is higher, the compensation coefficient is smaller; ref (ref) g Representing the standard refractive index of the free core, obtained from the production parameters of the free core.
When the distance calculation is performed according to the acquired return light signals, according to the maximum position of the detected knocking influence, time difference information between sending and receiving of the maximum position signals is calculated, and according to a proposed distance calculation formula, the distance between the target detection point and the optical cable of the machine room is calculated, wherein a temperature compensation coefficient is particularly added in the distance calculation process to compensate the influence of the field temperature on the refractive index of the optical cable, and the accuracy of the distance calculation is improved.
Preferably, the transmitting unit is further configured to transmit a high-frequency carrier signal to the accessed idle fiber core, and transmit corresponding characteristic information of the high-frequency carrier signal to the cloud computing module.
Preferably, the field detection module further comprises an optical cable identification unit;
the optical cable identification unit is used for acquiring signals of a target optical cable through the receiver, amplifying the acquired signals to obtain carrier detection signals, and transmitting the acquired carrier detection signals to the cloud computing module;
the cloud computing module further comprises an optical cable identification unit;
the optical cable identification unit is used for carrying out high-frequency feature extraction according to the obtained carrier detection signal to obtain high-frequency feature extraction information, and carrying out matching according to the obtained high-frequency feature extraction information and the feature information of the high-frequency carrier signal, and outputting an optical cable identification result when the high-frequency feature extraction information and the feature information are successfully matched.
After the target detection point corresponding to the target optical cable path is determined, the operation and maintenance personnel further find the target optical cable at the target position in a pole climbing or well descending mode, wherein, aiming at the condition that a plurality of optical cables exist at the target position, a high-frequency carrier signal with a designated frequency can be transmitted to the target optical cable through a transmitting unit, the carrier signals in the optical cable are collected through the optical cable identification unit of the field detection module contacting different target optical cables, and the specific target optical cable is further determined through the frequency of the collected carrier signals.
Preferably, the operation and maintenance terminal comprises a control unit and a display unit;
the control unit is used for sending a knocking control instruction to the field detection module so that the field detection module can complete knocking on the target detection point according to the obtained knocking control instruction; the signal receiving and transmitting module is used for receiving the signal control instruction from the idle fiber core;
the display unit is used for receiving the optical cable detection result, the distance detection result and/or the optical cable identification result transmitted by the cloud computing module.
The operation and maintenance terminal can be built based on special intelligent equipment or intelligent mobile phones, operation and maintenance personnel only need to hold the operation and maintenance terminal, the functions of remote control and result receiving and displaying can be completed, the operation and maintenance personnel can grasp the search result of the target optical cable in real time, the operation and maintenance personnel can be helped to quickly locate the target optical cable, and operation and maintenance efficiency is improved.
It should be noted that, in each embodiment of the present invention, each functional unit/module may be integrated in one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated in one unit/module. The integrated units/modules described above may be implemented either in hardware or in software functional units/modules.
From the description of the embodiments above, it will be apparent to those skilled in the art that the embodiments described herein may be implemented in hardware, software, firmware, middleware, code, or any suitable combination thereof. For a hardware implementation, the processor may be implemented in one or more of the following units: an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, other electronic units designed to perform the functions described herein, or a combination thereof. For a software implementation, some or all of the flow of an embodiment may be accomplished by a computer program to instruct the associated hardware. When implemented, the above-described programs may be stored in or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. The computer readable media can include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. A multipurpose optical cable operation and maintenance system based on a cloud platform is characterized by comprising a field detection module, a signal receiving and transmitting module, an operation and maintenance terminal and a cloud computing module,
the field detection module is used for generating knocking at the target detection point;
the signal receiving and transmitting module is used for accessing an idle fiber core of the target optical cable in the machine room, transmitting continuous incident optical signals to the idle fiber core, receiving return optical signals returned by the idle fiber core, and transmitting the return optical signals to the cloud computing module;
the cloud computing module detects whether a target optical cable exists near the target detection point according to the obtained return signal, and an optical cable detection result is obtained; under the condition that the target optical cable is detected, the distance between the target detection point and the optical cable of the machine room is further calculated according to the acquired return signal, and a distance detection result is obtained; transmitting the obtained optical cable detection result and the distance detection result to an operation and maintenance terminal;
the operation and maintenance terminal is used for recording the position of the knocking point and displaying the obtained optical cable detection result and the obtained distance detection result.
2. The cloud platform-based multi-purpose optical cable operation and maintenance system of claim 1, wherein the field detection module comprises an intelligent knocking unit;
the intelligent knocking unit is used for knocking the rubber hammer at the target detection point with a specified impact force, so that the vibration generated at the target detection point affects the target optical cable, and knocking information is transmitted to the cloud computing module.
Wherein the tapping information includes time information and location information at which the tapping occurs.
3. The cloud platform-based multi-purpose optical cable operation and maintenance system of claim 2, wherein the field detection module further comprises an environment acquisition unit;
the environment acquisition unit is used for acquiring environment information of the target detection point, wherein the environment information comprises detection point surface temperature information and humidity information, and the acquired environment information is added into knocking information.
4. The cloud platform-based multi-purpose optical cable operation and maintenance system of claim 2, wherein the field detection module further comprises a positioning unit;
the positioning unit is used for recording the position information of the target detection point, transmitting the obtained position information to the cloud computing module, and further transmitting the position information to the operation and maintenance terminal through the cloud computing module.
5. The cloud platform-based multi-purpose optical cable operation and maintenance system of claim 2, wherein the signal transceiver module comprises a transmitting unit, a modulating unit and a receiving unit; wherein the method comprises the steps of
The transmitting unit is used for transmitting continuous laser to the accessed idle fiber cores;
the modulation unit is connected with the output end of the laser unit and is used for modulating continuous laser into a pulse optical signal and inputting the pulse optical signal into the idle fiber core;
the receiving unit is used for receiving a return light signal generated after the idle fiber core is affected by vibration, converting the acquired return light signal into a digital signal and transmitting the digital signal to the cloud computing module.
6. The multipurpose optical cable based on the cloud platform as claimed in claim 5, wherein the cloud computing module comprises an optical cable detection unit, a distance computing unit and a transmission unit; wherein, the liquid crystal display device comprises a liquid crystal display device,
the optical cable detection unit is used for detecting whether a target optical cable exists near the target detection point according to the acquired return optical signal to obtain an optical cable detection result;
the distance calculation unit is used for further calculating the distance from the target detection point to the optical cable of the machine room according to the acquired return signal when the existence of the target optical cable near the target detection point is monitored according to the return optical signal, so as to obtain a distance detection result;
the transmission unit is used for transmitting the obtained optical cable detection result and the distance detection result to the operation and maintenance terminal.
7. The cloud platform-based multi-purpose optical cable operation and maintenance system of claim 6, wherein the optical cable detection unit detects whether the target optical cable exists in the vicinity of the target detection point according to the acquired return optical signal, and specifically comprises:
preprocessing according to the acquired return light signals to obtain preprocessed return light signals;
carrying out maximum extraction according to the preprocessed return light signals to obtain space-time information and intensity information corresponding to the maximum signal values;
comparing the space-time information at the maximum value with the space-time information in the knocking information to obtain a space-time matching result, and matching according to the intensity information at the maximum value and a set intensity threshold to obtain an intensity matching result; and outputting a result of successfully detecting the target optical cable when the space-time matching result and the intensity matching result meet the standards, and marking the maximum position in the signal.
8. The cloud platform-based multi-purpose optical cable operation and maintenance system of claim 6, wherein the distance calculating unit calculates the distance from the target detection point to the machine room optical cable according to the acquired return signal, and specifically comprises:
acquiring total time t from signal transmission to reception according to the marked maximum position of the obtained return light signal 12 ；
The distance from the target detection point to the machine room optical cable is calculated by adopting the following formula:
wherein d gj Represents the distance from the target detection point to the optical cable of the machine room, c represents the speed of light, te x Representing a temperature compensation coefficient calculated from the acquired temperature information of the surface of the target detection point, wherein tem x ∈[0.95,1.05]When the acquired temperature information is higher, the compensation coefficient is smaller; ref (ref) g Representing the standard refractive index of the free core, obtained from the production parameters of the free core.
9. The cloud platform-based multi-purpose optical cable operation and maintenance system of claim 6, wherein the operation and maintenance terminal comprises a control unit and a display unit;
the control unit is used for sending a knocking control instruction to the field detection module so that the field detection module can complete knocking on the target detection point according to the obtained knocking control instruction; the signal receiving and transmitting module is used for receiving the signal control instruction from the idle fiber core;
the display unit is used for receiving the optical cable detection result, the distance detection result and/or the optical cable identification result transmitted by the cloud computing module.
10. The cloud platform-based multi-purpose optical cable operation and maintenance system of claim 2, wherein the transmitting unit is further configured to transmit a high-frequency carrier signal to the accessed idle fiber core, and transmit corresponding high-frequency carrier signal characteristic information to the cloud computing module;
the field detection module further comprises an optical cable identification unit;
the optical cable identification unit is used for acquiring signals of a target optical cable through the receiver, amplifying the acquired signals to obtain carrier detection signals, and transmitting the acquired carrier detection signals to the cloud computing module;
the cloud computing module further comprises an optical cable identification unit;
the optical cable identification unit is used for carrying out high-frequency feature extraction according to the obtained carrier detection signal to obtain high-frequency feature extraction information, and carrying out matching according to the obtained high-frequency feature extraction information and the feature information of the high-frequency carrier signal, and outputting an optical cable identification result when the high-frequency feature extraction information and the feature information are successfully matched.
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