CN117134825B - Multi-core optical cable fault rapid positioning analysis method - Google Patents
Multi-core optical cable fault rapid positioning analysis method Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- 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
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention discloses a multi-core optical cable fault rapid positioning analysis method, which comprises the following steps: performing fault detection on the optical cable detection branch channel; distributing a path set to be detected based on abnormal condition of optical cable signal reception of a fault detector positioned at the head end and the tail end of the optical cable network; analyzing and obtaining a safe optical cable branch set and a fault optical cable bus; analyzing to obtain a fault branch prediction result and an initial fault optical cable branch; analyzing to obtain a fault corresponding branch point, and distributing a plurality of groups of inspection lines taking the fault corresponding branch point as a head-tail point; and (5) checking and analyzing according to the checking line to obtain the final fault position of the optical cable. According to the invention, the detection range is gradually enlarged to find the fault optical cable bus and find the final optical cable fault position in the fault optical cable bus, the branch network paths of the selected area part are detected, and the placement of the final optical cable fault position is further screened out, so that the number and the range of optical cables to be detected are reduced, and the optical cable detection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of power communication fault positioning, in particular to a multi-core optical cable fault rapid positioning analysis method.
Background
The optical cable of the distribution network is a component of an electric power communication network, a fault point of the optical cable is required to be found out as soon as possible due to the fact that the optical cable line breaks down, the fault point of the optical cable is overhauled, fault point detection of the optical cable is usually carried out through an optical cable detection system, laser light intensity of the laser light at different positions of the optical cable network is detected through detecting a branching point or a starting point position of the optical cable, attenuation data of the laser light after the laser light passes through transportation are obtained, an attenuation curve is drawn by taking the optical cable position as an abscissa and an attenuation value, and when the optical cable line breaks down, the position point of the attenuation value suddenly increased in the attenuation curve is the fault point in the optical cable network.
The fault point of the optical cable network can be accurately positioned through the technology, but the optical cable network branches are more, if the detection process is carried out for each branch, the detection range is large, the optical cable which is not faulty cannot be effectively removed in the detection process, and when different optical cable buses with the same optical cable branches are detected, the same optical cable branch is detected, and the repeated detection causes low detection efficiency.
Therefore, the existing optical cable detection technology has the following technical problems that the detection range is large, and the detection efficiency is low due to repeated detection of the optical cable branches in bus detection.
Disclosure of Invention
Therefore, the invention provides a quick positioning analysis method for faults of a multi-core optical cable, which effectively solves the problems of large detection range and low detection efficiency caused by repeated detection of optical branches in bus detection in the prior art.
In order to solve the technical problems, the invention specifically provides the following technical scheme: a multi-core optical cable fault rapid positioning analysis method comprises the following steps:
Step 100, arranging an optical switching device and a fault detector at an optical cable network branch point and at the head and tail ends of the optical cable network, and sending light to an optical cable branch line corresponding to the optical cable network branch point to form an optical cable detection branch channel, performing fault detection on the optical cable detection branch channel, and generating first fault detection data;
Step 200, distributing a path set to be detected based on the abnormal condition of optical cable signal reception of a fault detector positioned at the head end and the tail end of the optical cable network;
Step 300, opening the corresponding optical switching device and the fault detector according to the path set to be detected so as to receive first fault detection data and analyze and obtain a safe optical cable branch set and a fault optical cable bus;
step 400, obtaining a fault branch prediction result based on the fault branch bus and the safe optical cable branch set analysis;
step 500, opening a corresponding optical switching device and a fault detector based on a fault branch prediction result so as to analyze and obtain an initial fault optical cable branch;
Step 600, obtaining a fault corresponding branch point based on initial fault optical cable branch analysis, and distributing a plurality of groups of inspection lines taking the fault corresponding branch point as a head-tail point based on the fault corresponding branch point;
and 700, opening the corresponding optical switching device and the fault detector according to the inspection line, and inspecting and analyzing the final optical cable fault position based on the detection result.
Further, the optical switching device comprises a first optical switch arranged at the head end and the tail end of the optical cable network and a second optical switch arranged at the branching point of the optical cable network.
Further, the allocating a path set to be detected based on the abnormal condition of optical cable signal reception of the fault detector located at the head end and the tail end of the optical cable network includes:
Receiving an abnormal condition of optical cable signal reception of the fault detector positioned at the head end and the tail end of the optical cable network;
And acquiring a branch network path of the optical cable network, and taking the branch network path which takes the head end and the tail end of the optical cable network corresponding to the abnormality as an endpoint as a first detection route.
Further, the opening and closing device and the fault detector corresponding to the path set to be detected are opened to receive the first fault detection data and analyze and obtain a safe optical cable branch set and a fault optical cable bus, including:
Opening the optical switching device and the fault detector on a first detection path;
analyzing and obtaining a first safety optical cable branch and a fault optical cable bus according to the detection result of the fault detector;
If the fault condition is not detected, the fault optical cable bus is not analyzed, and a second detection route is set by taking the head end and the tail end of the optical cable network as endpoints;
Opening the optical switching device and the fault detector on the second detection route based on the second detection route;
And analyzing and obtaining the second safety optical cable branch and the fault optical cable bus according to the detection result of the fault detector.
Further, adjacent branching points of the optical cable network are separated by a unit distance.
Further, the opening and closing device and the fault detector corresponding to the path set to be detected are opened to receive the first fault detection data and analyze and obtain the safe optical cable branch set and the fault optical cable bus, and the method further includes:
setting an allocation path threshold as c unit distances;
Taking a branch network path with the head end and the tail end of the optical cable network with the abnormal condition of optical cable signal reception as endpoints and the corresponding path length of a as a first detection path;
Taking a branch network path with the head end and the tail end of the optical cable network with the abnormal condition of optical cable signal reception as endpoints and the corresponding path length of b as a second detection path;
wherein a is less than or equal to c, and b is more than c.
Further, obtaining a fault branch prediction result based on the fault branch bus and the safety optical cable branch set analysis;
opening a corresponding optical switching device and a fault detector based on a fault branch prediction result so as to analyze and obtain an initial fault optical cable branch;
Comprising the following steps:
acquiring the fault branch bus and the safe optical cable branch set;
Removing the first safety optical cable branch and the second safety optical cable branch in the fault branch bus to obtain a fault branch prediction result;
Opening an optical switching device and the fault detector on the fault branch prediction result according to the fault branch prediction result;
and obtaining at least one initial fault optical cable branch according to the detection result of the fault detector.
Further, deriving a fault corresponding branch point based on the initial fault cable branch analysis, comprising:
And acquiring the head and tail points of the initial fault optical cable branch, and marking the head and tail points as fault corresponding branch points.
Further, the allocating a plurality of groups of test lines with the fault corresponding branch point as the head and tail points based on the fault corresponding branch point includes:
Acquiring a branch network path of an optical cable network;
and taking the branch network path with the fault corresponding branch point as a head-tail point as a checking line.
Further, the opening of the corresponding optical switch and the fault detector according to the inspection line, and inspecting and analyzing the final optical cable fault location based on the detection result, includes:
opening an optical switching device and the fault detector on the inspection line;
When the abnormal data of the detection result of the fault detector is 0, analyzing and obtaining the corresponding optical cable fault branch to be the final optical cable fault position;
And when the abnormal data of the detection result of the fault detector is one, analyzing and obtaining that the corresponding optical cable fault branch point is the final optical cable fault position.
Compared with the prior art, the invention has the following beneficial effects:
The invention distributes a path set to be detected according to the abnormal condition of optical cable signal reception of a fault detector positioned at the head end and the tail end of an optical cable network, the path set to be detected gradually increases the detection range, the corresponding optical switching device and the fault detector are controlled to be started according to the path set to be detected, a safe optical cable branch set and a fault optical cable bus are obtained according to analysis of first fault detection data, a fault branch prediction result is obtained by analysis, then the fault branch prediction result is inspected and analyzed to obtain a final optical cable fault position, the detection range is gradually expanded to find the fault optical cable bus and find the final optical cable fault position in the fault optical cable bus, partial branch network paths are selected for detection, and the placement of the final optical cable fault position is further screened out, so that the number and the range of the optical cable to be detected are reduced, and the optical cable detection efficiency is improved;
in addition, the safe optical cable branch set is screened out in the detection process, the detection of the safe optical cable branch set is eliminated in the secondary detection, the repeated detection is avoided, and the detection efficiency is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is a flow chart of a method for rapidly positioning and analyzing faults of a multi-core optical cable according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a branch network path of a fiber optic cable network in an embodiment of the present invention;
fig. 3 is a schematic path diagram of a first detection path in an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in FIG. 1, the invention provides a rapid positioning analysis method for faults of a multi-core optical cable, which comprises the following steps:
Step 100, arranging an optical switching device and a fault detector at an optical cable network branch point and at the head and tail ends of the optical cable network, and sending light to an optical cable branch line corresponding to the optical cable network branch point to form an optical cable detection branch channel, performing fault detection on the optical cable detection branch channel, and generating first fault detection data;
Step 200, distributing a path set to be detected based on the abnormal condition of optical cable signal reception of a fault detector positioned at the head end and the tail end of the optical cable network;
Step 300, opening the corresponding optical switching device and the fault detector according to the path set to be detected so as to receive first fault detection data and analyze and obtain a safe optical cable branch set and a fault optical cable bus;
step 400, obtaining a fault branch prediction result based on the fault branch bus and the safe optical cable branch set analysis;
step 500, opening a corresponding optical switching device and a fault detector based on a fault branch prediction result so as to analyze and obtain an initial fault optical cable branch;
Step 600, obtaining a fault corresponding branch point based on initial fault optical cable branch analysis, and distributing a plurality of groups of inspection lines taking the fault corresponding branch point as a head-tail point based on the fault corresponding branch point;
and 700, opening the corresponding optical switching device and the fault detector according to the inspection line, and inspecting and analyzing the final optical cable fault position based on the detection result.
According to the invention, a path set to be detected is distributed according to the abnormal condition of optical cable signal reception of a fault detector positioned at the head end and the tail end of an optical cable network, the detection range of the path set to be detected is gradually increased, the opening and closing device and the fault detector are controlled to be opened according to the path set to be detected, a safe optical cable branch set and a fault optical cable bus are obtained according to analysis of first fault detection data, a fault branch prediction result is obtained through analysis, then a final optical cable fault position is obtained through inspection and analysis of the fault branch prediction result, the detection range is gradually increased to find the fault optical cable bus and find the final optical cable fault position in the fault optical cable bus, and the placement of the branch network path of a selected area and further screening out the final optical cable fault position reduces the number and the range of the optical cable to be detected, and improves the optical cable detection efficiency.
The optical switch device adopts a mechanical optical switch, and is assumed to be a branch network path of an optical cable network as shown in fig. 2, wherein the optical switch device is installed at each optical cable network branch point of a, b, c and the like and at the head end and the tail end of the optical cable network, and the optical switch device at each optical cable network branch point can emit light to an optical cable branch line which is correspondingly connected in a conducting way.
The optical switching device comprises a first light switch and a second light switch; the first light switch is arranged at the head end and the tail end of the optical cable network, and the second light switch is arranged at a branching point of the optical cable network.
In the above embodiment, the first optical switch is installed at the head and tail ends of the optical cable such as a, b, c, d, and the second optical switch is installed at the branching point of the optical cable network such as e, f, g, where the optical switching device at s can send out light to the ns, os, sx three optical cable branching routes.
When the optical cable network works normally, the fault detector positioned at the head and tail ends of the optical cable network monitors the transmission of signals of the optical cable network in real time, other detection equipment can be used for monitoring the optical cable transmission condition of the optical cable network in the practical application process, and the optical cable fault positioning program is performed when the optical cable network has abnormal transmission.
Wherein, the distribution to-be-detected path set based on the abnormal condition of optical cable signal reception of the fault detector positioned at the head end and the tail end of the optical cable network comprises the following steps:
Receiving an abnormal condition of optical cable signal reception of a fault detector positioned at the head end and the tail end of the optical cable network;
and acquiring a branch network path of the optical cable network, and taking the branch network path which takes the head end and the tail end of the optical cable network corresponding to the abnormality as an endpoint as a first detection route.
In the above embodiment, when the fault detector located at the head and tail ends of the optical cable network detects that the optical cable signal is abnormally received, the corresponding branch network path is obtained, the corresponding first detection route is obtained, and then the optical switching device and the fault detector on the first detection route are opened to detect each optical cable branch line on the corresponding first detection route.
The first detection route is an optical cable transmission path with a path length within a certain range, and is also used for detecting and positioning in a small range.
Opening the corresponding optical switching device and the fault detector according to the path set to be detected so as to receive first fault detection data and analyze and obtain a safe optical cable branch set and a fault optical cable bus, wherein the method comprises the following steps:
opening an optical switching device and a fault detector on a first detection route;
analyzing and obtaining a first safety optical cable branch and a fault optical cable bus according to the detection result of the fault detector;
If the fault condition is not detected, the fault optical cable bus is not analyzed, and a second detection route is set by taking the head end and the tail end of the optical cable network as endpoints;
opening the optical switching device and the fault detector on the second detection route based on the second detection route;
And analyzing and obtaining the second safety optical cable branch and the fault optical cable bus according to the detection result of the fault detector.
When the first detection route does not find the fault optical cable bus, the second detection route is distributed to perform larger-range fault finding.
In the practical application process, adjacent optical cable network branch points are separated by a unit distance.
Opening the corresponding optical switching device and the fault detector according to the path set to be detected so as to receive first fault detection data and analyze and obtain a safe optical cable branch set and a fault optical cable bus, and further comprising:
setting an allocation path threshold as c unit distances;
Taking a branch network path with the head end and the tail end of the optical cable network with the abnormal condition of optical cable signal reception as endpoints and the corresponding path length of a as a first detection path;
Taking a branch network path with the head end and the tail end of the optical cable network with the abnormal condition of optical cable signal reception as endpoints and the corresponding path length of b as a second detection path;
wherein a is less than or equal to c, and b is more than c.
In the above embodiment, two adjacent branch points of the optical cable network are separated by a unit distance, that is, in the optical cable network, a unit distance is separated between c and g, a unit distance is separated between 4 and d, etc., the allocation path threshold set in the above step is determined according to the actual situation, and it is assumed that the optical cable signal transmission between c and d is abnormal, and the path between c and d exists: cgkoty4d, cgkosx4d, cgjnsx4d, cgjnrw3x4d, etc., wherein the first three paths are each 7 units long and the fourth path is 9 units long, c may be set to 7 (in practice, 9 or other values may be set), and a branch network path having a path length of 9 units or less is used as the first detection path, that is, cgkoty d, cgkosx4d, cgjnsx4d is used as the first detection path, and the optical switching device and the fault detector on the first detection path are turned on as shown in fig. 3.
In the invention, a fault detector of one optical cable network branch point is defaulted to be used for detecting the light receiving condition of an optical switching device corresponding to a path adjacent to the optical cable network branch point, wherein when the optical switching device at c emits light, the fault detector at g is used for detecting whether the light transmission at c is abnormal or not.
In the invention, the preliminary detection step is divided into two steps, the detection ranges of the two steps are different and gradually increased, in the practical application process, the detection steps can be set to 3, 4 and the like, the detection range is gradually increased (correspondingly, a plurality of distribution path thresholds are also required to be set in the case, and two distribution path thresholds are required to be set if the detection step is 3 steps), and the preliminary detection step is stopped when the corresponding fault optical cable bus is found.
Taking the example of detecting a faulty fiber optic cable bus for the first time, the fault detector at s in the first detection route detection process receives an abnormal signal, and ns and os fiber optic cable branch lines may have problems, in the first detection routes cgkoty d, cgkosx4d, cgjnsx4d, cgkosx d and cgjnsx4d related to ns and os fiber optic cable branch lines are taken as faulty fiber optic cable buses, and all fiber optic cable branch lines in cgkoty d and other fiber optic cable branch lines excluding ns and os fiber optic cable branch lines in cgkosx d and cgjnsx4d are taken as first safe fiber optic cable branches.
And when the first detection does not detect the fault optical cable bus, starting the second detection, and correspondingly analyzing to obtain the second safe optical cable branch and the fault optical cable bus in a mode consistent with the process.
After the faulty branch bus and the safe optical cable branch set are found in the process, the next faulty optical cable branch is detected.
Obtaining a fault branch prediction result based on the fault branch bus and the safety optical cable branch set analysis;
opening a corresponding optical switching device and a fault detector based on a fault branch prediction result so as to analyze and obtain an initial fault optical cable branch;
Comprising the following steps:
acquiring a fault branch bus and a safe optical cable branch set;
removing the first safety optical cable branch and the second safety optical cable branch in the fault branch bus to obtain a fault branch prediction result;
opening an optical switching device and a fault detector on the fault branch prediction result according to the fault branch prediction result;
and obtaining at least one initial fault optical cable branch according to the detection result of the fault detector.
Wherein, all the optical cable branch lines in cgkoty d and other optical cable branch lines except ns and os optical cable branch lines in cgkosx d and cgjnsx4d are taken as first safe optical cable branches, (the situation is not detected for the second time and therefore the situation of the second safe optical cable branch is not considered), cgkosx d and cgjnsx4d are taken as fault optical cable buses, after the corresponding first safe optical cable branches are removed, ns and os optical cable branch lines are obtained as fault branch prediction results, an optical switching device and a fault detector on ns and os optical cables are started, at an n optical cable network branch point, the light emitted by the optical switching device of s is received for analysis, at an s optical cable network branch point, the light emitted by n and o is received for analysis, and at an o, the light emitted by s is received for analysis.
Assuming that the result of the analysis of the light rays emitted by the optical switch device receiving s is abnormal at the branch point of the n optical cable network, ns is the result of the initial fault optical cable branch.
Deriving a fault correspondence branch point based on an initial fault cable branch analysis, comprising:
And acquiring the head and tail points of the initial fault optical cable branch, and marking the head and tail points as fault corresponding branch points.
After analysis shows that ns is the initial fault optical cable branch, the head and tail points n and s of ns are obtained as fault corresponding branch points.
After the analysis results in the corresponding branch point of the fault, the fault location is checked.
Wherein, based on the corresponding branch point of trouble a plurality of groups of inspection lines that regard the corresponding branch point of trouble as head and tail point of trouble are distributed, include:
Acquiring a branch network path of an optical cable network;
And taking the branch network path with the branch point corresponding to the fault as the head-tail point as a checking line.
Because the branch network paths of the optical cable network are complicated, in the practical application process, part of branch network paths taking the branch points corresponding to faults as head and tail points can be selected as test lines, and njgkos, njgkoty4xs can be taken as test lines on the assumption that n and s are branch points corresponding to faults.
After obtaining the inspection line, opening the corresponding optical switching device and the fault detector according to the inspection line, and obtaining the final optical cable fault position by inspection and analysis based on the detection result, wherein the method comprises the following steps:
opening an optical switching device and a fault detector on the inspection line;
When the abnormal data of the detection result of the fault detector is 0, analyzing and obtaining the corresponding optical cable fault branch to be the final optical cable fault position;
When the abnormal data of the detection result of the fault detector is one, the corresponding optical cable fault branch point is analyzed and obtained to be the final optical cable fault position.
In the above embodiment, njgkos, njgkoty4 ×4xs is taken as the inspection line, the optical switch device and the fault detector on the inspection line are turned on, and if the inspection line njgkos, njgkoty4 ×s has no abnormal detection result, the optical cable fault branch ns is the final optical cable fault location, if jn in the inspection line njgkos or njgkoty4 ×s has abnormal detection result data, the optical cable fault branch point n is determined to be the final optical cable fault location, and if xs in the inspection line njgkoty4 ×s has abnormal detection result data, the optical cable fault branch point s is determined to be the final optical cable fault location.
In the invention, additional check lines can be set according to the initial fault optical cable branch, a fault corresponding branch point is obtained according to the initial fault optical cable branch, and the sum of the branch network path taking the fault corresponding branch point as the head and tail points and the initial fault optical cable branch is taken as the check line.
In this case, the optical switching device and the fault detector on the inspection line are turned on according to the inspection line; according to the condition that the number of abnormal data is 1 according to the detection result of the fault detector, analyzing and obtaining the corresponding optical cable fault branch to be the final optical cable fault position; and according to the condition that the abnormal data are multiple and the abnormal optical cable fault branches exist a common end point in the detection result of the fault detector, analyzing and obtaining the corresponding optical cable fault branch point as the final optical cable fault position.
That is, after analysis to obtain ns as the initial fault optical cable branch, n and s are corresponding branch points of faults, njgkosn, njgkoty4xsn can be used as a test line, the test line under the condition is used as a closed loop, an optical switching device and a fault detector on the test line are started, the ns section in the test line njgkosn, njgkoty4xsn is assumed to have abnormal detection results, the analysis to obtain the optical cable fault branch ns as the final optical cable fault position, the jn and ns in the test line njgkos or njgkoty4xs are assumed to have abnormal detection result data, the optical cable fault branch point n is determined to be the final optical cable fault position, and the xs and ns in the test line njgkoty xs are assumed to have abnormal detection result data, and the optical cable fault branch point s is determined to be the final optical cable fault position.
When ns has no problem and the inspection line has no problem, the inspection program is restarted, the accuracy of the detection mode is higher, the problem that ns has detection faults in the detection process can be avoided, and the repeated detection of ns is realized.
The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this application will occur to those skilled in the art, and are intended to be within the spirit and scope of the application.
Claims (9)
1. The quick positioning analysis method for the faults of the multi-core optical cable is characterized by comprising the following steps of:
Step 100, arranging an optical switching device and a fault detector at each optical cable network branch point and at the head and tail ends of the optical cable network, and sending out light to an optical cable branch line corresponding to the optical cable network branch point to form an optical cable detection branch channel, performing fault detection on the optical cable detection branch channel and generating first fault detection data;
Step 200, distributing a path set to be detected based on the abnormal condition of optical cable signal reception of a fault detector positioned at the head end and the tail end of the optical cable network;
Comprising the following steps:
Receiving an abnormal condition of optical cable signal reception of the fault detector positioned at the head end and the tail end of the optical cable network;
Acquiring a branch network path of an optical cable network, and taking the branch network path which takes the head end and the tail end of the optical cable network corresponding to the abnormality as an endpoint as a first detection route;
Step 300, opening the corresponding optical switching device and the fault detector according to the path set to be detected so as to receive first fault detection data and analyze and obtain a safe optical cable branch set and a fault optical cable bus;
step 400, obtaining a fault branch prediction result based on the fault branch bus and the safe optical cable branch set analysis;
Step 500, opening an optical switching device and a fault detector on the fault branch prediction result based on the fault branch prediction result so as to analyze and obtain an initial fault optical cable branch;
Step 600, obtaining a fault corresponding branch point based on initial fault optical cable branch analysis, and distributing a plurality of groups of inspection lines taking the fault corresponding branch point as a head-tail point based on the fault corresponding branch point;
Step 700, opening the corresponding optical switching device and the fault detector according to the inspection line, and inspecting and analyzing the final optical cable fault position based on the detection result;
The fault detector of one optical cable network branch point is used for detecting the light receiving condition of the optical switching device of the optical cable network branch point adjacent to the corresponding path.
2. The rapid localization analysis method of a multi-core optical cable fault of claim 1 wherein the optical switch means comprises a first optical switch mounted at the head-tail end of the optical cable network and a second optical switch mounted at a branch point of the optical cable network.
3. The method for quickly positioning and analyzing faults of a multi-core optical cable according to claim 1, wherein the opening and closing device and the fault detector corresponding to the path set to be detected are opened to receive first fault detection data and analyze and obtain a branch set of the safety optical cable and a fault optical cable bus, and the method comprises the following steps:
Opening the optical switching device and the fault detector on a first detection path;
analyzing and obtaining a first safety optical cable branch and a fault optical cable bus according to the detection result of the fault detector;
If the fault condition is not detected, the fault optical cable bus is not analyzed, and a second detection route is set by taking the head end and the tail end of the optical cable network as endpoints;
Opening the optical switching device and the fault detector on the second detection route based on the second detection route;
And analyzing and obtaining the second safety optical cable branch and the fault optical cable bus according to the detection result of the fault detector.
4. A method of rapid localization analysis of a multi-core optical cable fault as claimed in claim 3 wherein adjacent branch points of the cable network are separated by a unit distance.
5. The rapid positioning analysis method for multi-core optical cable faults according to claim 4, wherein the optical switching device and the fault detector corresponding to the path set to be detected are turned on to receive first fault detection data and analyze and obtain a safe optical cable branch set and a fault optical cable bus, and further comprising:
setting an allocation path threshold as c unit distances;
Taking a branch network path with the head end and the tail end of the optical cable network with the abnormal condition of optical cable signal reception as endpoints and the corresponding path length of a as a first detection path;
Taking a branch network path with the head end and the tail end of the optical cable network with the abnormal condition of optical cable signal reception as endpoints and the corresponding path length of b as a second detection path;
wherein a is less than or equal to c, and b is more than c.
6. The rapid localization analysis method of multi-core cable faults of claim 5, wherein the fault branch prediction results are obtained based on analysis of a fault branch bus and a safe cable branch set;
opening a corresponding optical switching device and a fault detector based on a fault branch prediction result so as to analyze and obtain an initial fault optical cable branch;
Comprising the following steps:
acquiring the fault branch bus and the safe optical cable branch set;
Removing the first safety optical cable branch and the second safety optical cable branch in the fault branch bus to obtain a fault branch prediction result;
Opening an optical switching device and the fault detector on the fault branch prediction result according to the fault branch prediction result;
and obtaining at least one initial fault optical cable branch according to the detection result of the fault detector.
7. The method for rapid localization analysis of a multi-core cable fault of claim 6, wherein deriving the fault-corresponding branch point based on an initial fault cable branch analysis comprises:
And acquiring the head and tail points of the initial fault optical cable branch, and marking the head and tail points as fault corresponding branch points.
8. The rapid positioning analysis method for multi-core optical cable faults according to claim 7, wherein the distributing groups of inspection lines taking the fault corresponding branch point as the head and tail points based on the fault corresponding branch point comprises:
Acquiring a branch network path of an optical cable network;
and taking the branch network path with the fault corresponding branch point as a head-tail point as a checking line.
9. The rapid positioning analysis method for multi-core optical cable faults according to claim 8, wherein the opening of the corresponding optical switching device and the fault detector according to the inspection line to inspect and analyze the final optical cable fault location based on the detection result comprises:
opening an optical switching device and the fault detector on the inspection line;
When the abnormal data of the detection result of the fault detector is 0, analyzing and obtaining the corresponding optical cable fault branch to be the final optical cable fault position;
And when the abnormal data of the detection result of the fault detector is one, analyzing and obtaining that the corresponding optical cable fault branch point is the final optical cable fault position.
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