CN108809410B - Optical cable fault detection method and optical cable fault detection system - Google Patents
Optical cable fault detection method and optical cable fault detection system Download PDFInfo
- Publication number
- CN108809410B CN108809410B CN201810415854.4A CN201810415854A CN108809410B CN 108809410 B CN108809410 B CN 108809410B CN 201810415854 A CN201810415854 A CN 201810415854A CN 108809410 B CN108809410 B CN 108809410B
- Authority
- CN
- China
- Prior art keywords
- optical cable
- detection
- fault
- optical
- path
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- H04B10/071—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]
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The application relates to an optical cable fault detection method and system of an optical cable monitoring network, wherein the optical cable monitoring network comprises a bidirectional controllable optical switch and an optical cable fault detection device which are arranged at the branch junction of distribution network optical cables, the bidirectional controllable optical switch is connected with optical cable monitoring spare fibers in the distribution network optical cables, and the number of the bidirectional optical switches is multiple; the optical cable fault detection method comprises the following steps: acquiring the position of an optical cable fault detection device, and dynamically generating an optical cable detection path of an optical cable monitoring network through a routing algorithm according to the position of the optical cable fault detection device; generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path; when the distribution network optical cable fails, the optical cable detection channel is detected through the optical cable fault detection device, and a detection result is generated. According to the fault detection method, the optical cable fault is detected through the dynamically generated optical cable detection channel, the applicability to the actual distribution network optical cable network is high, and the detection performance is strong.
Description
Technical Field
The application relates to the technical field of intelligent management of power communication networks, in particular to an optical cable fault detection method and an optical cable fault detection system.
Background
The power distribution network optical cable is a component of a power communication network, is generally laid by adopting a power tower and a pipe trench, and the length of each section is within 3-5 kilometers. The number of the power distribution network optical cables in one city is very large, and reaches thousands or tens of thousands. At present, a power distribution network optical cable is not well detected and managed automatically, and when a fault occurs, a service interruption alarm needs to be relied on, and the fault position is manually searched for and processed.
Currently, the detection of a long-distance Optical cable is generally performed by an Optical cable detection system, that is, a detection light source or an OTDR (Optical Time Domain Reflectometer ) plus an Optical switch is used for detection, and the length of the detection Optical cable is about 100km to 150 km. The optical cable detection system can give an alarm in time before the transmission fault occurs in the optical cable, analyze the reason of the fault in time when the fault occurs, accurately position the distance of the fault point and improve the time of rapid first-aid repair. The optical power detection unit of the optical cable detection system generates by collecting communication optical power, and then sends the generated optical power to an MC (Media Converter, detection center) for analysis and processing, so as to realize alarm detection of dynamic change of optical power. And after receiving the alarm of the optical power detection unit, the detection center analyzes the detection route of the alarm. Then, the optical switch is controlled by the process of switching on the detection center to select the optical fiber to be detected, the remote OTDR transmits detection light different from communication light wavelength, the wavelength division multiplexing detection light is transmitted to a transmission network, and the MC analyzes the data after receiving the test curve data of the OTDR and calculates the data of fault point positions and the like. Finally, fault notification is carried out in various forms such as short messages, GIS (Geographic Information System) positioning, sound and the like.
However, the detection light path of the existing optical cable detection system is fixed, which is difficult to detect thousands of scattered optical cable segments, and the detection performance of the system is very poor.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a method and a system for detecting a fault in an optical cable, which can dynamically monitor the fault in the optical cable.
The optical cable fault detection method of the optical cable monitoring network comprises a bidirectional controllable optical switch and an optical cable fault detection device, wherein the bidirectional controllable optical switch and the optical cable fault detection device are installed at the junction of distribution network optical cable branches;
the optical cable fault detection method comprises the following steps:
acquiring the position of an optical cable fault detection device, and dynamically generating an optical cable detection path of an optical cable monitoring network through a routing algorithm according to the position of the optical cable fault detection device;
generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path;
and when the distribution network optical cable has a fault, detecting the optical cable detection channel through the optical cable fault detection device to generate a detection result.
In one embodiment, after the generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path, the method further includes:
and carrying out fault monitoring on the optical cable detection channel through the optical cable fault detection device.
In one embodiment, after the optical cable detection channel is detected by the optical cable fault detection apparatus, generating a detection result further includes:
when the distribution network optical cable fails, determining a fault point of the distribution network optical cable according to the detection result;
updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection channel bypasses the fault point;
and returning to the step of generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
In one embodiment, the detecting the optical cable detection channel by the optical cable fault detection apparatus further includes, after generating the detection result:
determining a fault point of the distribution network optical cable according to the detection result, wherein the detection result comprises an optical cable detection channel where the fault point is located;
updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection path is connected with the fault point, and the bidirectional controllable optical switch connected with the updated optical cable detection path comprises two bidirectional controllable optical switches which are closest to the fault point and are not in the optical cable detection channel where the fault point is located;
and returning to the step of generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
In one embodiment, the detecting the optical cable detection channel and generating the detection result further includes:
and obtaining a fault analysis result according to the detection result and the position information of the optical cable section between two adjacent bidirectional controllable optical switches.
In one embodiment, after obtaining the fault analysis result according to the detection result and the position information of the optical cable segment between two adjacent bidirectional controllable optical switches, the method further includes: and sending out a fault alarm message according to the fault analysis result.
An optical cable fault detection system of an optical cable monitoring network comprises a bidirectional controllable optical switch and an optical cable fault detection device, wherein the bidirectional controllable optical switch and the optical cable fault detection device are installed at the junction of distribution network optical cable branches;
the optical cable fault detection system comprises:
the detection path generation module is used for acquiring the position of the optical cable fault detection device and dynamically generating an optical cable detection path of the optical cable monitoring network through a routing algorithm according to the position of the optical cable fault detection device;
the detection channel generation module is used for generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path;
and the detection result generation module is used for detecting the optical cable detection channel through the optical cable fault detection device to generate a detection result.
In one embodiment, the optical cable fault detection system of the optical cable monitoring network further includes a first path updating module, where the first path updating module is configured to:
when the distribution network optical cable fails, determining a fault point of the distribution network optical cable according to the detection result;
updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection channel bypasses the fault point;
returning to the detection channel generation module to execute the step of generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
In one embodiment, the optical cable fault detection system of the optical cable monitoring network further includes a second path updating module, where the second path updating module is configured to:
when the distribution network optical cable has a fault, determining a fault point of the distribution network optical cable having the fault according to the detection result, wherein the detection result comprises an optical cable detection channel where the fault point is located;
updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection path is connected with the fault point, and the bidirectional controllable optical switch connected with the updated optical cable detection path comprises two bidirectional controllable optical switches which are closest to the fault point and are not in the optical cable detection channel where the fault point is located;
returning to the detection channel generation module to execute the step of generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
An optical cable fault detection system comprises an optical cable monitoring network, a plurality of bidirectional controllable optical switches and a processor, wherein the bidirectional controllable optical switches, the optical cable fault detection device and the processor are installed at the junction of distribution network optical cable branches, the bidirectional controllable optical switches are connected with optical cable monitoring spare fibers in a distribution network optical cable, the processor is respectively connected with each bidirectional controllable optical switch and the optical cable fault detection device, and the processor executes any one of the steps of the method.
According to the optical cable fault detection method and system, the bidirectional controllable optical switch is added in the distribution network optical cable to build the optical cable monitoring network, the optical cable detection path is generated through the routing algorithm, the bidirectional controllable optical switch is controlled to generate the optical cable detection channel according to the optical cable detection path, and when the distribution network optical cable is in fault, the optical cable detection channel is detected through the optical cable fault detection device, so that the detection result of the distribution network optical cable fault is obtained. According to the fault detection method, the optical cable detection channel is dynamically generated through the bidirectional controllable optical switch and the routing algorithm to detect the optical cable faults, a large number of short-distance distribution optical cables can form the long-distance optical cable detection channel through a small number of optical cable fault detection devices, the applicability to an actual distribution network optical cable network is high, and the detection performance is strong.
Drawings
FIG. 1 is a block diagram of a cable monitoring network in a method for detecting cable faults in one embodiment;
FIG. 2 is a schematic flow chart diagram of a method for optical cable fault detection in one embodiment;
FIG. 3 is a schematic view of a cable detection path in the cable fault detection method according to one embodiment;
FIG. 4 is a schematic diagram of a cable test channel in the method for detecting a cable fault according to one embodiment;
FIG. 5 is a schematic flow chart of a method for detecting a fault in a fiber optic cable according to another embodiment;
FIG. 6 is a schematic flow chart of a method for detecting a fault in an optical fiber cable according to another embodiment;
FIG. 7 is a schematic flow chart of a method for detecting a fault in a fiber optic cable according to another embodiment;
FIG. 8 is a schematic view of a cable test path in another embodiment of a method for detecting a cable fault;
FIG. 9 is a block diagram of a method for detecting a fault in a fiber optic cable according to another embodiment;
FIG. 10 is a block diagram of a cable fault detection system in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The optical cable fault detection method provided by the application can be applied to an optical cable monitoring network shown in figure 1. The black lines in the figure represent the optical cable detection spare fibers in the distribution network optical cable. The optical cable detection spare fiber junction points, namely partial dots such as A2, A3, B2 and the like in the figure are provided with bidirectional controllable optical switches, and meanwhile, optical cable fault detection devices are arranged at the positions B3 and F3 in the figure. The bidirectional controllable optical switch is specifically an mxn mechanical optical switch, the bidirectional controllable optical switch has a plurality of input ports and output ports, and bidirectional conduction of optical signals can be realized, that is, optical signals can be transmitted from the first end to the second end of the optical switch, and also can be transmitted from the second end to the first end, and the function of dynamically switching optical cable detection paths can be realized by the bidirectional controllable optical switch. In order to facilitate detection and install fewer optical cable fault detection devices, the optical cable fault detection devices can be installed at the junctions of spare optical fiber of the optical cables as much as possible.
In one embodiment, as shown in fig. 2, there is provided a method for detecting a fault in an optical cable, which is described by applying the method to fig. 1, and includes the following steps:
s100, acquiring the position of the optical cable fault detection device, and dynamically generating an optical cable detection path of the optical cable monitoring network through a routing algorithm according to the position of the optical cable fault detection device.
The Optical cable fault detection device is a device for detecting whether an Optical cable has a fault, in one embodiment, the Optical cable fault detection device may be an OTDR (Optical Time Domain Reflectometer, OTDR), a basic principle of the OTDR is to measure an Optical fiber transmission loss and a structural loss caused by various structural defects due to scattering, absorption and the like by using a method of analyzing backward scattered light or forward scattered light in an Optical fiber, and when a certain point of the Optical fiber is subjected to a temperature or stress, a scattering characteristic of the point is changed, so that disturbance information of an external signal distributed on a sensing Optical fiber is detected by displaying a corresponding relationship between the loss and the length of the Optical fiber. OTDR testing is performed by launching optical pulses into the fiber and then receiving the returned information at the OTDR port. When light pulses are transmitted within an optical fiber, they may be scattered, reflected, or the like due to the nature of the fiber itself, the connector, the splice, the bend, or other similar events. Some of the scatter and reflections will be returned to the OTDR. The useful information returned is measured by the detectors of the OTDR as time or curve segments at different positions in the fiber. The position of the fault point can be calculated by determining the speed of the light in the glass material from the time it takes to transmit a signal to the time it takes to return a signal. Routing algorithms, also known as routing algorithms, can be distinguished based on a number of characteristics. The purpose of the algorithm is to find a "good" path from the source router to the destination router. The optical cable detection path refers to a path for the optical cable fault detection device to detect the optical cable fault.
The optical cable detection path firstly acquires the position of the optical cable fault detection device in the optical cable monitoring network as shown in the figure, and dynamically generates the optical cable detection path of the optical cable monitoring network through a routing algorithm according to the position of the optical cable fault detection device, wherein the length of the generated optical cable detection path does not exceed the detection range of the optical cable fault detection device. In one embodiment, the generated cable detection path traverses the entire cable monitoring network, i.e., all cable segments of the entire cable monitoring network may be detected by the cable fault detection device. As shown in fig. 3, cable detection paths of B3-B2-C2-C1-D1 are generated.
And S300, generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
An optical switch is an optical device with one or more selectable transmission ports that functions to physically switch or logically operate optical signals in an optical transmission line or integrated optical circuit. The bidirectional controllable optical switch is a multiple-input multiple-output optical switch. The optical cable detection channel is a channel for detecting optical cable faults generated based on the optical cable detection path, so the optical cable detection channel is also generated dynamically. The optical cable fault detection device determines whether the optical cable has a fault by detecting the dynamically generated optical cable detection channel.
And controlling a bidirectional controllable optical switch in the detection path according to the dynamically generated optical cable detection path to dynamically generate an optical cable detection channel. As shown in fig. 4, the cable detection channel is generated by controlling the bidirectional controllable optical switches at B2, C2, C1, and D1.
S500, when the distribution network optical cable breaks down, detecting the optical cable detection channel through the optical cable fault detection device to generate a detection result.
The detection result refers to a fault detection result of the optical cable fault detection device for the fault, and the fault detection result may specifically include a specific location where the fault occurs, a specific type of the fault, and the like. The fault can be determined by monitoring the distribution network optical cable through a dynamically generated optical cable detection channel, and also by receiving fault information input manually.
When the distribution network optical cable has a fault, the dynamic optical cable detection channel can be detected through the optical cable fault detection device, and a fault detection result of the optical cable fault monitoring network on the distribution network optical cable can be obtained.
According to the optical cable fault detection method, the bidirectional controllable optical switch is added in the distribution network optical cable to build an optical cable monitoring network, an optical cable detection path is generated through a routing algorithm, the bidirectional controllable optical switch is controlled to generate an optical cable detection channel according to the optical cable detection path, and when the distribution network optical cable is in fault, the optical cable detection channel is detected through the optical cable fault detection device, so that the detection result of the distribution network optical cable fault is obtained. According to the fault detection method, the optical cable detection channel is dynamically generated through the bidirectional controllable optical switch and the routing algorithm to detect the optical cable faults, a large number of short-distance distribution optical cables can form the long-distance optical cable detection channel through a small number of optical cable fault detection devices, the applicability to an actual distribution network optical cable network is high, and the detection performance is strong.
As shown in fig. 5, in one embodiment, in step S300, after generating the cable detection channel by controlling the bidirectional controllable optical switch according to the cable detection path, the method further includes:
s400, carrying out fault monitoring on the optical cable detection channel through the optical cable fault detection device.
The monitoring here refers to performing fault monitoring on a dynamically generated optical cable detection channel through an optical cable fault detection device before a fault occurs, so as to find whether an optical cable fault or an optical cable degradation condition exists in a distribution network optical cable, and the monitoring of the optical cable fault may specifically be to find whether the monitored optical cable detection channel has an optical cable interruption condition fault. The monitoring can be specifically preset with a plurality of time points, when the preset time points are reached, the optical cable fault detection device carries out fault monitoring through the optical cable detection channels which are dynamically generated one by one, when the fault of a certain section of distribution network optical cable is monitored, the step S500 can be carried out, then the optical cable fault detection device carries out fault detection on the optical cable detection channels which detect the fault, and detection results are generated. By monitoring the faults of the dynamically generated optical cable detection channel, whether the distribution network optical cable has faults or not can be effectively found, so that the detection of the faults of the distribution network optical cable is more facilitated.
As shown in fig. 6, in one embodiment, in step S300, detecting the optical cable detection channel by the optical cable fault detection apparatus, and after generating the detection result, the method further includes:
and S610, determining a fault point of the distribution network optical cable according to the detection result.
S630, updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection channel bypasses the fault point.
Returning to S300, generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
The fault point refers to a place where the distribution network optical cable has a fault, namely, an optical cable section where the fault is found in the optical cable fault monitoring network through an optical cable fault detection method. The sections D1 through E1 shown in fig. 3 are the failure points. When the distribution network optical cable is found to be in fault, the detection light sent by the optical cable fault detection device may reach the error detection result of the subsequent optical cable section after passing through the fault of the fault point, so the original optical cable fault detection path is updated through a routing algorithm, a new optical cable fault detection path bypassing the optical cable section of the fault point is generated, then the step S300 is returned, an optical cable detection channel is generated by controlling the bidirectional controllable optical switch according to the optical cable detection path, and the fault detection is performed on the optical cable monitoring network through the updated optical cable fault detection path. When a certain optical cable section breaks down, the fault detection of other optical cable sections is prevented from being influenced and cannot be carried out.
As shown in fig. 7, in one embodiment, in step S500, the optical cable detection channel is detected by the optical cable fault detection apparatus, and the step further includes generating a detection result.
And S710, determining a fault point of the distribution network optical cable which has a fault according to the detection result, wherein the detection result comprises an optical cable detection channel where the fault point is located.
And S730, updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection path is connected with the fault point, and the bidirectional controllable optical switch connected with the updated optical cable detection path comprises two bidirectional controllable optical switches which are closest to the fault point and are not in the optical cable detection channel where the fault point is located.
Returning to S300, generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
When the distribution network optical cable has a fault, as shown in fig. 3, after the fault occurs between D1 and E1, the fault detection can only be performed on the optical cable from D1 to the fault point section through the originally generated fault detection channel, so that after the distribution network optical cable has a fault, as shown in fig. 8, the fault point is determined according to the fault detection result, then the optical cable detection path is updated, and the updated optical cable fault detection path should pass through the E1 point and be connected with the fault point. And then detecting the optical cable fault by generating an optical cable detection channel through the newly generated fault detection path. The invention realizes dynamic path detection, can bypass a fault optical cable to continue detecting the following optical cable section, and can dynamically calculate and generate an optical cable route for detecting from the other end when the optical cable detection route at one end is not passed, thereby realizing the whole-process optical cable detection.
As shown in fig. 9, in one embodiment, step S500 is performed to detect the optical cable detection channel, and after generating the detection result, the method further includes:
and S800, obtaining a fault analysis result according to the detection result and the position information of the optical cable section between two adjacent bidirectional controllable optical switches. If the optical cable in the optical cable monitoring system has a fault, the optical cable fault detection device can determine the position information of the fault point and the position information of the optical cable section between each two adjacent bidirectional controllable optical switches according to the detection result to accurately position the fault point, and the fault point is recorded to generate a fault analysis result. The fault analysis can make the optical cable maintenance personnel more clear and intuitively know the fault of the optical cable. The position information of the cable segment may be GIS (geographic information System) information of the cable segment.
In one embodiment, the step S800, after obtaining the fault analysis result according to the detection result and the position information of the optical cable segment between two adjacent bidirectional controllable optical switches, further includes: and S900, sending a fault warning message according to the fault analysis result. After the fault analysis result is generated by analyzing the fault result, an alarm message is sent according to the fault analysis result, namely the alarm message is sent after the fault analysis result with the fault is obtained, and the alarm message is not sent when the fault analysis result without the fault is obtained. And the optical cable maintenance personnel is informed whether the optical cable fault occurs through the alarm message, so that the optical cable maintenance personnel can be reminded to maintain or otherwise process the fault as soon as possible.
According to the optical cable fault detection method, the bidirectional controllable optical switch is added in the distribution network optical cable to build an optical cable monitoring network, an optical cable detection path is generated through a routing algorithm, the bidirectional controllable optical switch is controlled to generate an optical cable detection channel according to the optical cable detection path, and when the distribution network optical cable is in fault, the optical cable detection channel is detected through the optical cable fault detection device, so that the detection result of the distribution network optical cable fault is obtained. According to the fault detection method, the optical cable detection channel is dynamically generated through the bidirectional controllable optical switch and the routing algorithm to detect the optical cable faults, a large number of short-distance distribution optical cables can form the long-distance optical cable detection channel through a small number of optical cable fault detection devices, the applicability to an actual distribution network optical cable network is high, and the detection performance is strong.
In one embodiment, a method for detecting a fault in an optical cable is provided, comprising the steps of:
s200, acquiring the position of the optical cable fault detection device, and dynamically generating an optical cable detection path of the optical cable monitoring network through a routing algorithm according to the position of the optical cable fault detection device.
And S400, generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
And S500, carrying out fault monitoring on the optical cable detection channel through the optical cable fault detection device.
S600, when the distribution network optical cable fails, detecting the optical cable detection channel through the optical cable fault detection device to generate a detection result.
And S610, determining a fault point of the distribution network optical cable according to the detection result.
S630, updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection channel bypasses the fault point.
Returning to S300, generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
And S710, determining a fault point of the distribution network optical cable which has a fault according to the detection result, wherein the detection result comprises an optical cable detection channel where the fault point is located.
And S730, updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection path is connected with the fault point, and the bidirectional controllable optical switch connected with the updated optical cable detection path comprises two bidirectional controllable optical switches which are closest to the fault point and are not in the optical cable detection channel where the fault point is located.
Returning to S300, generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
And S800, obtaining a fault analysis result according to the detection result and the position information of the optical cable section between two adjacent bidirectional controllable optical switches.
And S900, sending a fault warning message according to the fault analysis result.
It should be understood that although the various steps in the flowcharts of fig. 1-9 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1-9 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
As shown in fig. 10, an optical cable fault detection system of an optical cable monitoring network includes a bidirectional controllable optical switch and an optical cable fault detection device installed at a branch junction of a distribution network optical cable, where the bidirectional controllable optical switch is connected with a spare optical cable monitoring fiber in the distribution network optical cable, and the number of the bidirectional optical switches is plural;
the optical cable fault detection system comprises:
the detection path generation module 100 is configured to obtain a position of the optical cable fault detection device, and dynamically generate an optical cable detection path of the optical cable monitoring network through a routing algorithm according to the position of the optical cable fault detection device;
the detection channel generation module 300 is configured to generate an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path;
and the detection result generation module 500 is used for detecting the optical cable detection channel through the optical cable fault detection device to generate a detection result when the distribution network optical cable has a fault.
In one embodiment, the optical cable fault detection system of the optical cable monitoring network further comprises a fault monitoring module, and the fault monitoring module is used for carrying out fault monitoring on the optical cable detection channel through the optical cable fault detection device.
In one embodiment, the optical cable fault detection system of the optical cable monitoring network further includes a first path updating module, where the first path updating module is configured to:
determining a fault point of the distribution network optical cable according to the detection result;
updating an optical cable detection path through a routing algorithm, wherein the updated optical cable detection channel bypasses the fault point;
and the return detection channel generation module executes the step of generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
In one embodiment, the optical cable fault detection system of the optical cable monitoring network further includes a second path updating module, and the second path updating module is configured to:
determining a fault point of the distribution network optical cable according to the detection result, wherein the detection result comprises an optical cable detection channel where the fault point is located;
updating an optical cable detection path through a routing algorithm, wherein the updated optical cable detection path is connected with a fault point, and the bidirectional controllable optical switch connected with the updated optical cable detection path comprises two bidirectional controllable optical switches which are closest to the fault point and are not in an optical cable detection channel where the fault point is located;
and the return detection channel generation module executes the step of generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
In one embodiment, the optical cable fault detection system of the optical cable monitoring network further includes a detection result analysis module, configured to obtain a fault analysis result according to the detection result and position information of an optical cable segment between two adjacent bidirectional controllable optical switches.
In one embodiment, the optical cable fault detection system of the optical cable monitoring network further comprises an alarm module, configured to send out a fault alarm message according to the fault analysis result.
According to the optical cable fault detection system, the bidirectional controllable optical switch is added in the distribution network optical cable to build an optical cable monitoring network, an optical cable detection path is generated through a routing algorithm, an optical cable detection channel is generated by controlling the bidirectional controllable optical switch according to the optical cable detection path, and the optical cable detection channel is detected through the optical cable fault detection device to obtain a detection result of the distribution network optical cable fault. According to the fault detection method, the optical cable detection channel is dynamically generated through the bidirectional controllable optical switch and the routing algorithm to detect the optical cable faults, a large number of short-distance distribution optical cables can form the long-distance optical cable detection channel through a small number of optical cable fault detection devices, the applicability to an actual distribution network optical cable network is high, and the detection performance is strong.
For specific limitations of the cable fault detection apparatus, reference may be made to the above limitations of the cable fault detection method, which are not described herein again. The modules in the cable fault detection device can be wholly or partially realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
An optical cable fault detection system comprises an optical cable monitoring network, a bidirectional controllable optical switch, an optical cable fault detection device and a processor, wherein the optical cable monitoring network comprises the bidirectional controllable optical switch, the optical cable fault detection device and the processor, the bidirectional controllable optical switch is arranged at a branch intersection point of a distribution network optical cable, the bidirectional controllable optical switch is connected with optical cable monitoring spare fibers in the distribution network optical cable, the number of the bidirectional controllable optical switches is multiple, the processor is respectively connected with each bidirectional controllable optical switch and the optical cable fault detection device, and the processor realizes the following steps when executing the operation of the optical cable fault detection method:
acquiring the position of an optical cable fault detection device, and dynamically generating an optical cable detection path of an optical cable monitoring network through a routing algorithm according to the position of the optical cable fault detection device;
generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path;
when the distribution network optical cable fails, the optical cable detection channel is detected through the optical cable fault detection device, and a detection result is generated.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and fault monitoring is carried out on the optical cable detection channel through the optical cable fault detection device.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
determining a fault point of the distribution network optical cable according to the detection result;
updating an optical cable detection path through a routing algorithm, wherein the updated optical cable detection channel bypasses the fault point;
and returning to the step of generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
determining a fault point of the distribution network optical cable according to the detection result, wherein the detection result comprises an optical cable detection channel where the fault point is located;
updating an optical cable detection path through a routing algorithm, wherein the updated optical cable detection path is connected with a fault point, and the bidirectional controllable optical switch connected with the updated optical cable detection path comprises two bidirectional controllable optical switches which are closest to the fault point and are not in an optical cable detection channel where the fault point is located;
and returning to the step of generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and obtaining a fault analysis result according to the detection result and the position information of the optical cable section between two adjacent bidirectional controllable optical switches.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and the fault alarm module is used for sending out a fault alarm message according to the fault analysis result.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The optical cable fault detection method of the optical cable monitoring network comprises a bidirectional controllable optical switch and an optical cable fault detection device, wherein the bidirectional controllable optical switch and the optical cable fault detection device are installed at the junction of distribution network optical cable branches;
the optical cable fault detection method comprises the following steps:
acquiring the position of an optical cable fault detection device, and dynamically generating an optical cable detection path of an optical cable monitoring network through a routing algorithm according to the position of the optical cable fault detection device, wherein the length of the generated optical cable detection path does not exceed the detection range of the optical cable fault detection device;
generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path;
and when the distribution network optical cable has a fault, carrying out fault detection on the optical cable detection channel through the optical cable fault detection device to generate a fault detection result.
2. The method of claim 1, wherein the generating a cable detection channel by controlling the bidirectional controllable optical switch according to the cable detection path further comprises:
and carrying out fault monitoring on the optical cable detection channel through the optical cable fault detection device.
3. The method of claim 1, wherein after the detecting the cable detection channel by the cable fault detection device and generating the detection result, further comprising:
determining a fault point of the distribution network optical cable according to the detection result;
updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection channel bypasses the fault point;
and returning to the step of generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
4. The method of claim 1, wherein the detecting the cable inspection channel by the cable fault detection device further comprises, after generating the detection result:
determining a fault point of the distribution network optical cable according to the detection result, wherein the detection result comprises an optical cable detection channel where the fault point is located;
updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection path is connected with the fault point, and the bidirectional controllable optical switch connected with the updated optical cable detection path comprises two bidirectional controllable optical switches which are closest to the fault point and are not in the optical cable detection channel where the fault point is located;
and returning to the step of generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
5. The method of claim 1, wherein the detecting the optical cable detection channel further comprises, after generating the detection result:
and obtaining a fault analysis result according to the detection result and the position information of the optical cable section between two adjacent bidirectional controllable optical switches.
6. The method according to claim 5, wherein after obtaining the fault analysis result according to the detection result and the position information of the optical cable segment between two adjacent bidirectional controllable optical switches, sending a fault alarm message according to the fault analysis result.
7. An optical cable fault detection system of an optical cable monitoring network comprises a bidirectional controllable optical switch and an optical cable fault detection device, wherein the bidirectional controllable optical switch and the optical cable fault detection device are installed at the junction of distribution network optical cable branches;
the optical cable fault detection system comprises:
the detection path generation module is used for acquiring the position of the optical cable fault detection device, and dynamically generating an optical cable detection path of the optical cable monitoring network through a routing algorithm according to the position of the optical cable fault detection device, wherein the length of the generated optical cable detection path does not exceed the detection range of the optical cable fault detection device;
the detection channel generation module is used for generating an optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path;
and the detection result generation module is used for detecting the optical cable detection channel through the optical cable fault detection device to generate a detection result when the distribution network optical cable has a fault.
8. The system of claim 7, further comprising a first path update module configured to:
determining a fault point of the distribution network optical cable according to the detection result;
updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection channel bypasses the fault point;
returning to the detection channel generation module to execute the step of generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
9. The system of claim 7, further comprising a second path update module configured to:
determining a fault point of the distribution network optical cable according to the detection result, wherein the detection result comprises an optical cable detection channel where the fault point is located;
updating the optical cable detection path through a routing algorithm, wherein the updated optical cable detection path is connected with the fault point, and the bidirectional controllable optical switch connected with the updated optical cable detection path comprises two bidirectional controllable optical switches which are closest to the fault point and are not in the optical cable detection channel where the fault point is located;
returning to the detection channel generation module to execute the step of generating the optical cable detection channel by controlling the bidirectional controllable optical switch according to the optical cable detection path.
10. An optical cable fault detection system is characterized in that an optical cable monitoring network comprises two-way controllable optical switches, optical cable fault detection devices and a processor, wherein the two-way controllable optical switches are installed at the junction of distribution network optical cable branches, the two-way controllable optical switches are connected with optical cable monitoring spare fibers in a distribution network optical cable, the number of the two-way controllable optical switches is multiple, the processor is respectively connected with each two-way controllable optical switch and each optical cable fault detection device, and the processor executes the steps of the method of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810415854.4A CN108809410B (en) | 2018-05-03 | 2018-05-03 | Optical cable fault detection method and optical cable fault detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810415854.4A CN108809410B (en) | 2018-05-03 | 2018-05-03 | Optical cable fault detection method and optical cable fault detection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108809410A CN108809410A (en) | 2018-11-13 |
| CN108809410B true CN108809410B (en) | 2020-05-01 |
Family
ID=64093172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810415854.4A Active CN108809410B (en) | 2018-05-03 | 2018-05-03 | Optical cable fault detection method and optical cable fault detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108809410B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111010629A (en) * | 2019-12-24 | 2020-04-14 | 电信科学技术第五研究所有限公司 | Optical cross network connection detection method, device, storage medium and equipment |
| CN115347949B (en) * | 2022-07-08 | 2024-08-23 | 山东高速信息集团有限公司 | Road information transmission optical cable fault monitoring method and monitoring system |
| CN115347947B (en) * | 2022-08-25 | 2023-12-12 | 国家电网有限公司 | Distribution network communication optical cable fault positioning device |
| CN116527130A (en) * | 2023-05-19 | 2023-08-01 | 中通维易科技服务有限公司 | Detection method applied to long-distance optical cable |
| CN117134825B (en) * | 2023-09-04 | 2024-07-23 | 安徽新识智能科技有限公司 | Multi-core optical cable fault rapid positioning analysis method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630972A (en) * | 2009-08-19 | 2010-01-20 | 烽火通信科技股份有限公司 | Optical fiber line intelligent detection system and optical fiber line intelligent detection method for wavelength division multiplex (WDM) network |
| EP2818843A1 (en) * | 2013-06-25 | 2014-12-31 | British Telecommunications public limited company | Optical network fault identification |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001285323A (en) * | 2000-04-03 | 2001-10-12 | Hitachi Ltd | Optical network |
| CN102208941B (en) * | 2010-03-30 | 2014-01-08 | 华为技术有限公司 | Fiber failure detection system, method, optical switch and passive optical network system |
| CN101984561B (en) * | 2010-11-15 | 2014-09-10 | 中兴通讯股份有限公司 | System and method for detecting optical fiber faults of passive optical network |
| US8655167B1 (en) * | 2011-01-05 | 2014-02-18 | Google Inc. | Fiber diagnosis system for point-to-point optical access networks |
| CN203445988U (en) * | 2013-08-23 | 2014-02-19 | 于佐成 | Fiber protective device for passive optical network |
| CN104601228A (en) * | 2015-02-04 | 2015-05-06 | 苏州萤石光电科技有限公司 | System and method for positioning PON network optical fiber link failures |
| CN107395269B (en) * | 2017-07-20 | 2021-02-05 | 全球能源互联网研究院 | Arrangement method and monitoring device for power optical fiber distribution communication network |
-
2018
- 2018-05-03 CN CN201810415854.4A patent/CN108809410B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630972A (en) * | 2009-08-19 | 2010-01-20 | 烽火通信科技股份有限公司 | Optical fiber line intelligent detection system and optical fiber line intelligent detection method for wavelength division multiplex (WDM) network |
| EP2818843A1 (en) * | 2013-06-25 | 2014-12-31 | British Telecommunications public limited company | Optical network fault identification |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108809410A (en) | 2018-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108809410B (en) | Optical cable fault detection method and optical cable fault detection system | |
| JP3908703B2 (en) | System for optical network testing using OTDR | |
| TWI458953B (en) | A remote water sensing system with optical fiber | |
| CN1333454A (en) | Optical cable real time monitoring system | |
| CN105490739A (en) | System and method for monitoring optical cable of backbone network | |
| CN104518826A (en) | Fiber fault monitoring method, equipment and system | |
| CN104796191B (en) | A kind of transmitting device | |
| KR101342361B1 (en) | realtime Optical Monitoring system possible auto Switching of Optical line. | |
| CN103427898B (en) | Method and system for determining branch fault point of passive optical network | |
| CN109510663A (en) | A kind of system and method that fiber optic cable monitor and big data analysis are carried out based on intelligent optical fiber distribution | |
| CN113726422A (en) | Optical fiber online monitoring system capable of managing network | |
| JP2023107236A (en) | Enhanced line monitoring and parameter reporting for high fiber count undersea fiber optic transmission systems with multiple switchable branches | |
| CN108155935B (en) | Optical cable network fault detection device | |
| CN112964301A (en) | Monitoring method, device, system, equipment and storage medium of power pipeline | |
| CN117834001A (en) | Network optical fiber detection device and method | |
| CN113556171A (en) | Line fault position determination method based on optical cable path | |
| KR101919018B1 (en) | Smart optical line monitoring system | |
| CN112242869A (en) | Optical fiber fault detection system | |
| KR100692669B1 (en) | Real-time optical cable management system | |
| KR102631476B1 (en) | Apparatus for monitoring disorder of optical line and method thereof | |
| CN111189483A (en) | Distributed optical fiber sensing system, control method and control device thereof, and storage medium | |
| CN103560826B (en) | A kind of multistagely non-ly divide equally EPON network fiber fault testing method | |
| WO2023083112A1 (en) | Detection method, detection apparatus, optical fiber system and network device | |
| JP2009027518A (en) | Communication failure detection system and its method | |
| WO2022099552A1 (en) | System and method for real-time fiber performance monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |