CN110082070B - Fiber jump testing method - Google Patents
Fiber jump testing method Download PDFInfo
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- CN110082070B CN110082070B CN201910440558.4A CN201910440558A CN110082070B CN 110082070 B CN110082070 B CN 110082070B CN 201910440558 A CN201910440558 A CN 201910440558A CN 110082070 B CN110082070 B CN 110082070B
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- 239000000835 fiber Substances 0.000 title claims abstract description 107
- 238000012360 testing method Methods 0.000 title claims description 53
- 238000004891 communication Methods 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims description 51
- 210000001503 joint Anatomy 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 abstract description 7
- 230000009191 jumping Effects 0.000 abstract description 4
- 238000010998 test method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
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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
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
- H04B10/0775—Performance monitoring and measurement of transmission parameters
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
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- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Optical Communication System (AREA)
Abstract
The invention relates to the technical field of optical fiber communication, and particularly discloses a fiber jumping test method.
Description
Technical Field
The invention relates to the technical field of optical fiber communication, in particular to a fiber jump testing method.
Background
A plurality of communication networks are formed among city offices of the southern power grid, some communication networks are directly connected through optical cables, and some communication networks are connected through continuous optical cables for jumping fibers. In the process of operating the communication network, situations of needing fiber jump transfer or fiber jump recovery and the like are always inevitable, and fiber jump tests are needed in these situations.
The purpose of the fiber jump test is to ensure that all stations can be communicated. Assuming that A, B, C and D four stations need to perform fiber-jumping connection, the current fiber-jumping test method is as follows:
the station A and the station B carry out light focusing operation;
aligning the B station and the C station, and then connecting the AB section and the BC section in a jumper way by using tail fibers;
c station and D station carry on the beam alignment, then jump the fiber to connect BC section and CD section with the tail fiber;
and fourthly, carrying out whole-process light alignment on the station A and the station D.
The fiber skipping test method has the following defects:
some optical cables have poor fiber core quality, and the loss during transmission is large, which eventually results in the situation that the output power cannot meet the power requirement required by the station equipment, however, the current testing method only performs optical operation, and cannot detect the quality problem of the optical cable in situ, so the following situations often occur:
through detection, the B station can be communicated with the C station, and when the C station is detected to the D station, the core loss from the B station to the C station is found to be too large, and the B station needs to return to the B station to jump the fiber again.
The above disadvantages can greatly reduce the working efficiency of the fiber jump test, and in order to avoid multiple returns, workers need to be equipped at each station, which again leads to the problem of human resource waste.
Disclosure of Invention
One object of the present invention is to provide a fiber jump testing method, which can detect the fiber core loss between stations on the spot, and can improve the working efficiency and save the manpower.
In order to achieve the above object, the present invention provides a fiber jump testing method, which is suitable for performing a fiber jump test on a communication network, wherein the communication network sequentially includes a station a, a station B, a station C … … J, and a station K, and two adjacent stations are connected by an electric power cable, and the fiber jump testing method includes:
loop-back wiring: dividing fiber cores in the power optical cable between two adjacent stations into a plurality of fiber core groups according to every two fiber cores as a group, and conducting the two fiber cores of the same fiber core group positioned in the same station; the number of fiber core groups of all the power optical cables is the same;
and (3) broken wire butt joint: disconnecting each fiber core group at one end of the AB power optical cable which connects the site A and the site B, and disconnecting each fiber core group at one end of the BC power optical cable which connects the site B and the site C; connecting the fiber core group of each disconnected AB power optical cable with the fiber core group of a disconnected BC power optical cable, and forming a loop to be tested by the two butted fiber core groups;
and (3) loss test: performing loss test on each group of loops to be tested at the site A, wherein 1/2 of the value obtained by the loss test is the fiber core loss value between the site A and the site C; if the fiber core loss value does not meet the requirement, replacing the AB power optical cable and/or the BC power optical cable; and if the fiber core loss value meets the requirement, performing disconnection butt joint and loss test on the next station in sequence.
Preferably, the loss test is performed on each group of loops to be tested at the site a, and 1/2 of a value obtained by the loss test is a core loss value between the site a and the site C, specifically:
and (3) carrying out loss test on each group of loops to be tested at the site A by using a light source device and an optical power device, wherein 1/2 of the detected power loss value is the fiber core loss value between the site A and the site C.
Preferably, the method further comprises the following steps:
disconnection of tail end loop: and the JK power optical cable for disconnecting the J station and the K station is positioned in each fiber core group at one end of the K station.
Preferably, the method further comprises the following steps:
and accessing the equipment at the site A and the site K to realize communication.
Preferably, the number of the fiber cores of the power optical cable is plural.
The invention has the beneficial effects that: the fiber skipping testing method can detect the fiber core loss condition between stations on the spot, improve the working efficiency and save manpower.
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, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of a loopback connection provided by an embodiment;
FIG. 2 is a schematic diagram of a disconnection and connection of three stations according to an embodiment;
fig. 3 is a schematic diagram of disconnection and connection at four stations according to an embodiment.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In one aspect, the present embodiment provides a communication network, which includes an a site, a B site, a C site … … J site, and a K site in sequence, where two adjacent sites are connected through an optical power cable. In this embodiment, site a is a starting site, sites B and C … … J are intermediate sites, and site K is an ending site. It is to be understood that the number of intermediate sites can be zero, one, two, three, four, or any number. Preferably, the number of the fiber cores of the power optical cable is plural.
On the other hand, the present embodiment provides a fiber-skipping testing method, which is suitable for performing a fiber-skipping test on a communication network, and includes the following steps:
s10: loop-back wiring: referring to fig. 1, the fiber cores in the power optical cable 2 between two adjacent stations are divided into a plurality of fiber core groups 201 by grouping every two fiber cores, and the two fiber cores of the same fiber core group 201 in the same station are conducted; the number of core groups 201 is the same for all power cables 2.
Preferably, the power optical cable has a 24-core structure, and if all the fiber cores are vacant, each section of power optical cable can form 12 fiber core groups. Generally, a spare core is used for fiber skipping.
Referring to fig. 1 to 2, an optical fiber distribution unit 1 is disposed in each station, and specifically, one optical fiber distribution unit 1 is disposed at each of a starting station and a destination station; the intermediate sites are each provided with two fibre distribution units 2, one for connection to the previous site and the other for connection to the next site. In step S10, the power optical cable 2 between the two optical fiber distribution units 1 connected to each other is first looped back.
Preferably, since each core group of the AB power cable at one end of the a site needs to be used as an access end of the detection apparatus in step S40, each core group of the AB power cable connecting the a site and the B site at one end of the a site may not be connected when step S10 is performed.
Preferably, an automatic closing device may be provided, and when a fault occurs, the automatic closing device provided in each optical fiber distribution unit automatically closes to implement loop-back connection between two adjacent stations. Certainly, because the jumping fiber mainly adopts a spare fiber core, the spare fiber core can be in a loop state at the beginning, when the test is needed, only two batches of workers are needed, one batch of workers directly tests at a starting point station, and the other batch of workers sequentially carries out disconnection butt joint to each station at the downstream.
S20: and (3) broken wire butt joint: disconnecting each fiber core group at one end of the AB power optical cable which connects the site A and the site B, and disconnecting each fiber core group at one end of the BC power optical cable which connects the site B and the site C; and connecting the fiber core group of each group of disconnected AB power optical cables with the fiber core group of one group of disconnected BC power optical cables, and forming a loop to be tested by the two butted fiber core groups.
Specifically, 12 groups of loops to be tested can be obtained at the station a by butting the AB power optical cable and the BC power optical cable, and the length of each group of loops to be tested is twice as long as that of the AC power optical cable.
S30: and (3) loss test: performing loss test on each group of loops to be tested at the site A, wherein 1/2 of the value obtained by the loss test is the fiber core loss value between the site A and the site C; if the fiber core loss value does not meet the requirement, replacing the AB power optical cable and/or the BC power optical cable; and if the fiber core loss value meets the requirement, performing disconnection butt joint and loss test on the next station in sequence.
Specifically, 12 groups of loops to be detected are detected in sequence at the site A, if the fiber core loss value does not meet the requirement, the detection can be immediately carried out, and the detection can be carried out without reaching the site C, so that the time for returning to overhaul is reduced.
Preferably, the loss test is performed on each group of loops to be tested at the site a, and 1/2 of a value obtained by the loss test is a core loss value between the site a and the site C, specifically:
and (3) carrying out loss test on each group of loops to be tested at the site A by using a light source device and an optical power device, wherein 1/2 of the detected power loss value is the fiber core loss value between the site A and the site C.
In this embodiment, if the fiber core loss value meets the requirement, the next station is subjected to disconnection butting and loss testing in sequence, which specifically includes:
it is understood that if there is only one B site in the intermediate site and the C site is the end site, referring to fig. 2, said S30 includes:
if the core loss value satisfies the requirement, S40 is performed.
If there are two intermediate stations, i.e., a B station and a C station, and a D station is a destination station, referring to fig. 3, each optical fiber distribution unit 1 is connected by an optical power cable 2, where S30 includes:
if the fiber core loss value meets the requirement:
and C, performing disconnection butting on the station C: disconnecting each fiber core group at one end of the C site of the BC power optical cable connecting the B site and the C site, and disconnecting each fiber core group at one end of the C site of the CD power optical cable connecting the C site and the D site; connecting the fiber core group of each disconnected BC power optical cable with the fiber core group of a disconnected CD power optical cable, and forming a loop to be tested by the two butted fiber core groups;
performing loss test on the C site: performing loss test on each group of loops to be tested at the site A, wherein 1/2 of the value obtained by the loss test is the fiber core loss value between the site A and the site D; if the fiber core loss value does not meet the requirement, replacing the CD power optical cable; if the core loss value satisfies the requirement, S40 is performed.
By analogy, when the number of the intermediate stations is gradually increased, the next station is subjected to disconnection butting and loss testing in sequence until the measured fiber core loss value of the intermediate station connected with the terminal station meets the requirement, and S40 is executed.
S40: disconnection of tail end loop: and the JK power optical cable for disconnecting the J station and the K station is positioned in each fiber core group at one end of the K station.
It is understood that the K site is an end site.
S50: and accessing the equipment at the site A and the site K to realize communication.
It is understood that the K site is an end site.
According to the fiber skipping testing method provided by the embodiment, the fiber cores on two sides of all stations are subjected to paired loopback wiring, then one group of people is adopted to perform matching testing at the starting point, the other group of people performs fiber detaching and butt joint at each node in sequence, limited manpower is fully utilized to finish fiber skipping work with high efficiency and high quality, the work is simpler and clearer, the quality of fiber skipping is improved, and once an emergency occurs, an emergency channel can be immediately skipped, so that the rapid recovery of a communication network can be guaranteed.
Compared with the prior art, the fiber jump testing method provided by the embodiment has the following beneficial effects:
1. the workload of operation and maintenance personnel is reduced, the time is relatively shortened, the operation cost is reduced, and the working efficiency is improved.
2. By adopting the method, the fiber core with the problem can be found in time and replaced immediately, the working quality of fiber jumping is ensured, and the working reliability is improved. Especially, when an emergency light path fault occurs, the service can be quickly recovered, the stability of a communication network is improved, and the risk of the power grid is reduced.
The fiber skipping testing method provided by the invention can detect the fiber core loss condition between stations on the spot, not only can improve the working efficiency, but also can save manpower.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A fiber jump testing method is suitable for conducting fiber jump testing on a communication network, the communication network sequentially comprises a station A, a station B, a station C … … J and a station K, and two adjacent stations are communicated through an electric power optical cable, and the fiber jump testing method is characterized by comprising the following steps:
loop-back wiring: dividing fiber cores in the power optical cable between two adjacent stations into a plurality of fiber core groups according to every two fiber cores as a group, and conducting the two fiber cores of the same fiber core group positioned in the same station; the number of fiber core groups of all the power optical cables is the same;
and (3) broken wire butt joint: disconnecting each fiber core group at one end of the AB power optical cable which connects the site A and the site B, and disconnecting each fiber core group at one end of the BC power optical cable which connects the site B and the site C; connecting the fiber core group of each disconnected AB power optical cable with the fiber core group of a disconnected BC power optical cable, and forming a loop to be tested by the two butted fiber core groups;
and (3) loss test: performing loss test on each group of loops to be tested at the site A, wherein 1/2 of the value obtained by the loss test is the fiber core loss value between the site A and the site C; if the fiber core loss value does not meet the requirement, replacing the AB power optical cable and/or the BC power optical cable; and if the fiber core loss value meets the requirement, performing disconnection butt joint and loss test on the next station in sequence.
2. The fiber jump testing method according to claim 1, wherein the loss test is performed on each group of loops to be tested at the site a, and 1/2 of a value obtained by the loss test is a core loss value between the site a and the site C, specifically:
and (3) carrying out loss test on each group of loops to be tested at the site A by using a light source device and an optical power device, wherein 1/2 of the detected power loss value is the fiber core loss value between the site A and the site C.
3. The fiber jump testing method of claim 1, further comprising:
disconnection of tail end loop: and the JK power optical cable for disconnecting the J station and the K station is positioned in each fiber core group at one end of the K station.
4. The fiber jump testing method of claim 3, further comprising:
and accessing the equipment at the site A and the site K to realize communication.
5. The fiber jump testing method of claim 1, wherein the number of cores of the power optical cable is plural.
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| CN201910440558.4A CN110082070B (en) | 2019-05-24 | 2019-05-24 | Fiber jump testing method |
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