CN113890607B - Optical cable T contact positioning method and device, computer equipment and storage medium - Google Patents
Optical cable T contact positioning method and device, computer equipment and storage medium Download PDFInfo
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Abstract
The embodiment of the application discloses a method and a device for positioning an optical cable T contact, computer equipment and a storage medium, wherein the method specifically comprises the following steps: acquiring a splicing point position of a first optical cable line and a splicing point position of a second optical cable line, wherein the splicing point positions comprise a common fusion point position and a T-joint fusion point position; determining a plurality of first fiber core lengths according to the connection point position of the first optical cable line, and determining a plurality of second fiber core lengths according to the connection point position of the second optical cable line; and determining the position of the T-junction fusion point according to the difference of the lengths of the plurality of first cores and the lengths of the plurality of second cores. According to the embodiment of the application, the position of the T contact in the optical cable line can be accurately acquired.
Description
Technical Field
The embodiment of the application relates to the field of communication, in particular to an optical cable T contact positioning method and device, computer equipment and a storage medium.
Background
In the design and construction of communication Optical cables, such as Optical Fiber Composite Overhead Ground Wire (OPGW) Optical cables of extra-high voltage direct current lines, due to the influence of the line trend, the geographical environment and the like, a jump point is added on a body Optical cable for Optical transmission from an a site to a C site, and the jump point is fused with the Fiber core of the existing low-voltage-level old line Optical cable so as to access the B site, so that the investment cost can be saved, and the jump point is called as a T point.
In actual work, the operation and maintenance data of the optical cable line stores information such as the position of the T-contact, and when the operation and maintenance data are maintained and updated or hidden danger troubleshooting and fault elimination are performed on the optical cable line, accurate T-contact position information needs to be acquired, and the T-contact position information can only be acquired through the operation and maintenance data currently.
However, the operation and maintenance data is mainly stored in a manual drawing recording mode, most of the operation and maintenance data is lost, or the operation and maintenance data is inaccurate due to the fact that the operation and maintenance data is subjected to projects such as line transfer and modification, optical cable replacement and connection and the like in the long-term operation process, so that the finally obtained T-joint position information is also inaccurate.
Disclosure of Invention
The embodiment of the application provides an optical cable T contact positioning method and device, computer equipment and a storage medium, which are used for accurately acquiring the position of a T contact in an optical cable line.
The method for positioning the T joint of the optical cable comprises the following steps:
acquiring a splicing point position of a first optical cable line and a splicing point position of a second optical cable line, wherein the splicing point positions comprise a common fusion point position and a T-joint fusion point position;
determining a plurality of first fiber core lengths according to the connection point position of the first optical cable line, and determining a plurality of second fiber core lengths according to the connection point position of the second optical cable line;
and determining the position of the T-joint welding point according to the difference of the lengths of the plurality of first cores and the lengths of the plurality of second cores.
Optionally, the obtaining the connection point position of the first optical cable line and the connection point position of the second optical cable line includes:
acquiring a first fiber core sensing signal of the first optical cable line and a second fiber core sensing signal of the second optical cable line;
and determining the position of a splicing point of the first optical cable line according to the first fiber core sensing signal, and determining the position of a splicing point of the second optical cable line according to the second fiber core sensing signal.
Optionally, the determining the lengths of the plurality of first fiber cores according to the connection point position of the first optical cable line, and determining the lengths of the plurality of second fiber cores according to the connection point position of the second optical cable line includes:
determining a first overall fiber core length of the first optical cable line according to the first fiber core sensing signal, and determining a second overall fiber core length of the second optical cable line according to the second fiber core sensing signal;
and determining a plurality of first fiber core lengths in the first integral fiber core length according to the connection point position of the first optical cable line, and determining a plurality of second fiber core lengths in the second integral fiber core length according to the connection point position of the second optical cable line.
Optionally, the determining the T-junction fusion-welding point position according to the difference between the first core lengths and the second core lengths includes:
when the first fiber core length corresponding to the splicing point position of the kth first optical cable line is the same as the second fiber core length corresponding to the splicing point position of the kth second optical cable line, and the first fiber core length corresponding to the splicing point position of the kth first optical cable line is different from the second fiber core length corresponding to the splicing point position of the kth +1 second optical cable line, determining that the splicing point position of the kth first optical cable line or the second optical cable line is the T-junction welding point position, wherein k is a positive integer.
Optionally, after determining that the splice point position of the kth first fiber optic cable line or the second fiber optic cable line is the T-junction splice point position, the method further includes:
obtaining operation and maintenance data, wherein the operation and maintenance data comprise a first tower span of the first optical cable line and a second tower span of the second optical cable line;
and determining the actual geographical position of the welding point position of the T joint according to the first fiber core length and the first tower lever span and/or according to the second fiber core length and the second tower lever span.
Optionally, the method further includes:
and updating the actual geographic positions of the welding point position of the T-joint and the welding point position of the T-joint to the operation and maintenance data.
Optionally, the first optical cable line and the second optical cable line are optical fiber composite overhead ground wire optical cables in an extra-high voltage direct current line.
The embodiment of the application provides an optical cable T contact positioner includes:
the system comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring a splicing point position of a first optical cable line and a splicing point position of a second optical cable line, and the splicing point positions comprise a common welding point position and a T-joint welding point position;
the first determining unit is used for determining a plurality of first fiber core lengths according to the connection point position of the first optical cable line and determining a plurality of second fiber core lengths according to the connection point position of the second optical cable line;
and the second determining unit is used for determining the position of the T-joint welding point according to the difference of the lengths of the plurality of first cores and the lengths of the plurality of second cores.
The computer device provided by the embodiment of the application comprises:
the system comprises a central processing unit, a memory and an input/output interface;
the memory is a transient memory or a persistent memory;
the central processor is configured to communicate with the memory and execute the instruction operations in the memory to perform the aforementioned methods.
The computer-readable storage medium provided by the embodiment of the application comprises instructions which, when run on a computer, cause the computer to execute the aforementioned method.
According to the technical scheme, the embodiment of the application has the following advantages:
according to the embodiment of the application, the connection point position of a first optical cable line and the connection point position of a second optical cable line are obtained, wherein the connection point positions comprise a common welding point position and a T-joint welding point position; determining a plurality of first fiber core lengths according to the connection point position of the first optical cable line, and determining a plurality of second fiber core lengths according to the connection point position of the second optical cable line; and determining the welding point position of the T joint according to the difference between the lengths of the plurality of first fiber cores and the lengths of the plurality of second fiber cores, so that the position of the T joint in the optical cable line can be accurately obtained.
Drawings
FIG. 1 is a diagram of a cable line configuration;
fig. 2 is a schematic diagram of an embodiment of a method for positioning a T-junction of an optical cable according to an embodiment of the present application;
FIG. 3 is a diagram of a cable circuit architecture provided by an embodiment of the present application;
FIG. 4 is a schematic view of an internal structure of an optical cable according to an embodiment of the present application;
FIG. 5 is a schematic illustration of a fiber core sensing signal provided by an embodiment of the present application;
FIG. 6 is a schematic diagram of an implementation system of a cable T-junction locating method according to an embodiment of the present disclosure;
FIG. 7 is a schematic view of an embodiment of a cable T-junction positioning device according to an embodiment of the present application;
fig. 8 is a schematic diagram of an embodiment of a computer device according to an embodiment of the present application.
Detailed Description
Embodiments of the present application will now be described with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely illustrative of some, but not all, embodiments of the present application. As can be known to those skilled in the art, with the development of technology and the emergence of new scenarios, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.
The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the application provides an optical cable T contact positioning method and device, computer equipment and a storage medium, which are used for accurately acquiring the position of a T contact in an optical cable line. The following are detailed below.
As shown in fig. 1, in a communication cable, for example, an Optical Fiber Composite Overhead Ground Wire (OPGW) of an extra-high voltage direct current line, an a site and a C site are connected for communication, optical transmission is completed through a main body cable, when communication with a third party B site is required, a jump point may be added to the main body cable for Optical transmission from the a site to the C site, and the jump point is fused with a core of an existing low-voltage-class old line cable to access the B site, so that investment cost may be saved, and the jump point is called a T-point.
As shown in fig. 2, an embodiment of a method for positioning a T-junction of an optical cable provided by the present application includes:
201. and acquiring the connection point position of the first optical cable line and the connection point position of the second optical cable line.
When a user needs to obtain a T joint of an optical cable line, any two optical cable lines can be measured, for example, the first optical cable line and the second optical cable line, so that a joint point position of the first optical cable line and a joint point position of the second optical cable line are obtained, and the first optical cable line and the second optical cable line can be optical fiber composite overhead ground wire optical cables in an extra-high voltage direct current line. Wherein the position of the connection point includes ordinary fusion splice point position and T joint fusion splice point position, and the position of the connection point of first optical cable circuit includes the ordinary fusion splice point position of first optical cable circuit and the T joint fusion splice point position of first optical cable circuit promptly, and the position of the connection point of second optical cable circuit includes the ordinary fusion splice point position of second optical cable circuit and the T joint fusion splice point position of second optical cable circuit. Wherein, the OPGW optical cable of the current network power is at a common fusion point of about 3-5 kilometers.
Specifically, a first fiber core sensing signal of the first optical cable line and a second fiber core sensing signal of the second optical cable line may be obtained first based on the distributed sensing technology, and then the connection point position of the first optical cable line is determined according to the first fiber core sensing signal, and the connection point position of the second optical cable line is determined according to the second fiber core sensing signal. The optical fiber sensor is used for detecting the sensing signals of the OPGW optical cable fiber cores of the actual operation line, and the positions of the optical cable line connection points can be quickly and accurately positioned by utilizing the different characteristics of two sides of the fusion point.
As shown in fig. 3, a first optical cable line, i.e., line 1, is from a site a to a site B, the site B completes communication to a site C, and a second optical cable line, i.e., line 2, completes communication from the site B to other sites, as shown in fig. 4, a hollow optical unit is manufactured for a layer-twisted stainless steel tube type OPGW optical cable, a plurality of optical fibers may be placed in the optical unit, the site a to the site B is 24 cores, the site B to the site C is 24 cores, the site B to other sites are 48 cores, the optical cable line between the site a and a splicing point is 24 cores, the optical cable lines between the splicing point and the site B are two optical cable lines, respectively 24 cores and 24 cores, and the optical cable line between the splicing point and the site C is 24 cores, and the optical fiber characteristics between the optical cable lines are different, and an optical fiber distribution sensor is used to measure fiber core sensing signals, i.e., the splicing point position of the first optical cable line and the splicing point position of the second optical cable line are obtained by analyzing and calculating the first fiber core sensing signals.
202. And determining a plurality of first fiber core lengths according to the connection point position of the first optical cable line, and determining a plurality of second fiber core lengths according to the connection point position of the second optical cable line.
203. And determining the position of a T-joint welding point according to the difference of the lengths of the first cores and the second cores.
After the splice point position of the first optical cable line and the splice point position of the second optical cable line are obtained, a plurality of first fiber core lengths can be determined according to the splice point position of the first optical cable line, and a plurality of second fiber core lengths can be determined according to the splice point position of the second optical cable line.
Specifically, a first overall fiber core length of the first optical cable line, that is, a total fiber core length of the first optical cable line, may be determined according to the first fiber core sensing signal, a second overall fiber core length of the first optical cable line, that is, a total fiber core length of the second optical cable line, may be determined according to the second fiber core sensing signal, and then a plurality of first fiber core lengths may be determined in the first overall fiber core length according to a splice point position of the first optical cable line, and a plurality of second fiber core lengths may be determined in the second overall fiber core length according to a splice point position of the second optical cable line.
Assuming that line 1 has m splices, line 2 has n splices,
the first core length, i.e. the core lengths of the ith and (i + 1) th junctions in the line 1,
the core lengths of the j-th splice point and the j + 1-th splice point in the line 2 are shown. When the formula is satisfied at the same time:
that is, when a first fiber core length corresponding to the splicing point position of the kth first optical cable line is the same as a second fiber core length corresponding to the splicing point position of the kth second optical cable line, and a first fiber core length corresponding to the splicing point position of the (k + 1) th first optical cable line is different from a second fiber core length corresponding to the splicing point position of the (k + 1) th second optical cable line, determining that the splicing point position of the kth first optical cable line or the second optical cable line is a T-junction fusion point position, where k is a positive integer, thereby determining the position of a T-junction, and the splicing point in fig. 3 is the T-junction.
As shown in fig. 5, when the formula (1) and the formula (2) are satisfied simultaneously, it can be obviously found that the optical fiber sensing signals before and after the T node, that is, the fiber core sensing signal jumps, so that the position of the T node can be determined according to the fiber core length of the abscissa corresponding to the T node.
204. And acquiring operation and maintenance data.
205. The actual geographic location of the T-junction fusion point location is determined based on the first core length and the first tower step pitch, and/or based on the second core length and the second tower step pitch.
206. And updating the actual geographic positions of the welding point position of the T-joint and the welding point position of the T-joint to operation maintenance data.
After the position of the T-junction is obtained, operation and maintenance data can be obtained, wherein the operation and maintenance data includes a first tower span of the first optical cable line and a second tower span of the second optical cable line, and then the actual geographical position of the welding point position of the T-junction is determined according to the first fiber core length and the first tower span, and/or according to the second fiber core length and the second tower span, that is, the fiber core length of the T-junction on the first optical cable line is compared with the first tower span, and/or the fiber core length of the T-junction on the second optical cable line is compared with the second tower span, so that the actual geographical position of the T-junction, that is, which tower the T-junction is specifically located on, can be found out, and the welding point position of the T-junction and the actual geographical position can be updated to the operation and maintenance data, thereby ensuring the accuracy of the operation and maintenance data.
As shown in fig. 6, the optical cable T-junction positioning method provided by the present application may be implemented in any system, where the system includes an interface layer, a processing layer, and an application layer, where the interface layer provides a data acquisition interface, supports transverse interconnection with distributed sensing devices, existing production tools, and the like, performs acquisition control, protocol processing, and the like, and automatically acquires and tests information such as distributed sensing data of a fiber core of a line optical cable, operation and maintenance data, and the operation and maintenance data mainly includes information such as a line span, a pole tower number, and the like. The processing layer performs calculation processing on data acquired by the interface, for example, calculates measured fiber core distributed sensing signals, and identifies fiber core lengths of all optical cable splicing points and a test station; the T-joint is accurately positioned by a method of difference comparison of the positions of the welding points through two fiber cores in different directions in the optical cable; calibrating the pole tower number corresponding to the T contact by combining the line operation and maintenance data, realizing accurate positioning, and supplementing and checking the operation and maintenance data; and collecting data, testing results and positioning results, and storing the data, the testing results and the positioning results in a warehouse, so as to provide a basis for an application layer. The application layer comprises the following application scenes according to actual production requirements in the operation work of the power communication network. The method specifically comprises the following steps: scene 1: and maintaining the operation and maintenance data. The following two conditions lead to the change of line operation and maintenance data, will change the fibre core length information between T contact and test site, influence the actual operation and maintenance work of extra-high voltage direct current line body optical cable: 1) In order to optimally adjust the communication network frame structure, an operation and maintenance unit usually adjusts or changes a line in a technical improvement mode, and the like, at the moment, a line corridor changes, and line operation and maintenance data greatly changes; 2) When the optical cable breaks down, the optical cable needs to be replaced or the optical cable is reserved by using the residual cable reel for fault elimination. At this time, the operation and maintenance personnel replace the operation and maintenance data of the line change and deletion section in a manual recording mode, and the integrity and the accuracy of the operation and maintenance basic data cannot be ensured for the whole communication line. In the application scene, the operation and maintenance data of the whole communication line are completely checked by combining the engineering design data, the operation and maintenance data and the fiber core distributed sensing data. Scene 2: and (4) hidden danger troubleshooting and fault elimination. After the extra-high voltage direct current line optical cable finds hidden dangers or breaks down, an optical time-domain reflectometer (OTDR) is usually adopted to test the length information of the hidden dangers or the fiber cores between the fault points and a test station. Under the application scene, the T contact is quickly and accurately positioned, the fiber core length information between the hidden danger point or the fault point and the T contact is calculated, the operation and maintenance data of the body optical cable is corresponded, the quick and accurate positioning of the hidden danger point or the fault point is realized, meanwhile, the low-voltage-grade old circuit data between the test station and the T contact is not needed to be calculated, the influence on the hidden danger and fault positioning due to incomplete or inaccurate operation and maintenance data of the old circuit is avoided, and therefore the quality and the efficiency of hidden danger troubleshooting and fault elimination are effectively improved.
The distributed sensing technology is used for detecting fiber cores of two optical cables in different directions, identifying the splicing points of the optical cables, realizing quick identification of the T joint by utilizing the position difference comparison idea of the welding points of the two lines, being applied to checking operation and maintenance data of the lines, effectively guiding hidden trouble troubleshooting and fault elimination of the optical cable of the extra-high voltage direct current line body, and improving operation and maintenance work efficiency and quality.
According to the embodiment of the application, the connection point position of a first optical cable line and the connection point position of a second optical cable line are obtained, wherein the connection point positions comprise a common welding point position and a T-joint welding point position; determining a plurality of first fiber core lengths according to the connection point position of the first optical cable line, and determining a plurality of second fiber core lengths according to the connection point position of the second optical cable line; and determining the position of the welding point of the T joint according to the difference between the lengths of the first fiber cores and the lengths of the second fiber cores, so that the position of the T joint in the optical cable line can be accurately obtained.
As shown in fig. 7, an optical cable T-junction positioning device 700 provided by the embodiment of the present application includes:
an obtaining unit 701, configured to obtain a connection point position of a first optical cable line and a connection point position of a second optical cable line, where the connection point positions include a common fusion point position and a T-junction fusion point position;
a first determining unit 702, configured to determine a plurality of first fiber core lengths according to the connection point position of the first optical cable line, and determine a plurality of second fiber core lengths according to the connection point position of the second optical cable line;
the second determining unit 703 is configured to determine a position of a T-junction fusion point according to a difference between the lengths of the plurality of first cores and the lengths of the plurality of second cores.
Optionally, the obtaining unit 701 is specifically configured to obtain a first fiber core sensing signal of a first optical cable line and a second fiber core sensing signal of a second optical cable line; and determining the position of a splicing point of the first optical cable line according to the first fiber core sensing signal, and determining the position of a splicing point of the second optical cable line according to the second fiber core sensing signal.
Optionally, the first determining unit 702 is specifically configured to determine a first overall fiber core length of the first optical cable line according to the first fiber core sensing signal, and determine a second overall fiber core length of the second optical cable line according to the second fiber core sensing signal; determining a plurality of first fiber core lengths in the first overall fiber core length according to the splice point position of the first optical cable line, and determining a plurality of second fiber core lengths in the second overall fiber core length according to the splice point position of the second optical cable line.
Optionally, the second determining unit 703 is specifically configured to determine that the splice point position of the kth first optical cable line or the second optical cable line is a T-junction splice point position when a first fiber core length corresponding to the splice point position of the kth first optical cable line is the same as a second fiber core length corresponding to the splice point position of the kth second optical cable line, and a first fiber core length corresponding to the splice point position of the (k + 1) th first optical cable line is different from a second fiber core length corresponding to the splice point position of the (k + 1) th second optical cable line, where k is a positive integer.
Optionally, the obtaining unit 701 is further configured to obtain operation and maintenance data, where the operation and maintenance data includes a first tower span of the first optical cable line and a second tower span of the second optical cable line; the second determination unit 703 is further configured to determine an actual geographical location of the T-junction fusion point position according to the first core length and the first tower span, and/or according to the second core length and the second tower span.
Optionally, the cable T-junction locating device 700 further comprises an updating unit 704, wherein the updating unit 704 is configured to update the T-junction welding point location and the actual geographic location of the T-junction welding point location to the operation maintenance data.
Optionally, the first optical cable line and the second optical cable line are optical fiber composite overhead ground wire optical cables in an extra-high voltage direct current line.
In the embodiment of the application, the connection point position of a first optical cable line and the connection point position of a second optical cable line are obtained through an obtaining unit 701, wherein the connection point positions comprise a common welding point position and a T-joint welding point position; the first determining unit 702 determines a plurality of first fiber core lengths according to the connection point position of the first optical cable line, and determines a plurality of second fiber core lengths according to the connection point position of the second optical cable line; the second determining unit 703 determines the position of the T-junction fusion point according to the difference between the lengths of the first cores and the lengths of the second cores, so that the position of the T-junction in the optical cable line can be accurately obtained.
Fig. 8 is a schematic structural diagram of a computer device according to an embodiment of the present disclosure, where the computer device 800 may include one or more Central Processing Units (CPUs) 801 and a memory 805, and the memory 805 stores one or more application programs or data.
The computer device 800 may also include one or more power supplies 802, one or more wired or wireless network interfaces 803, one or more input/output interfaces 804, and/or one or more operating systems, such as Windows Server, mac OS XTM, unixTM, linuxTM, freeBSDTM, and the like.
The central processing unit 801 may execute the method for positioning the T-junction of the optical cable provided in the foregoing embodiments, and details are not described herein.
In another embodiment of the present application, a computer-readable storage medium is further provided, in which a computer is stored, and when the computer executes the instructions, the apparatus executes the method for locating a T-junction of a fiber optic cable provided in the foregoing embodiment.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.
Claims (9)
1. A method for locating a T-junction of an optical cable, comprising:
acquiring a splicing point position of a first optical cable line and a splicing point position of a second optical cable line, wherein the splicing point positions comprise a common splicing point position and a T-joint splicing point position, and the first optical cable line and the second optical cable line pass through the same station;
determining a plurality of first fiber core lengths according to the connection point position of the first optical cable line, and determining a plurality of second fiber core lengths according to the connection point position of the second optical cable line;
determining the position of the T-junction welding point according to the difference of the lengths of the plurality of first cores and the lengths of the plurality of second cores;
wherein the determining the T-junction fusion point position according to the difference between the first core lengths and the second core lengths comprises:
when the first fiber core length corresponding to the splicing point position of the kth first optical cable line is the same as the second fiber core length corresponding to the splicing point position of the kth second optical cable line, and the first fiber core length corresponding to the splicing point position of the kth first optical cable line is different from the second fiber core length corresponding to the splicing point position of the kth +1 second optical cable line, determining that the splicing point position of the kth first optical cable line or the second optical cable line is the T-junction welding point position, wherein k is a positive integer.
2. The method of claim 1, wherein obtaining splice point locations for a first fiber optic line and a second fiber optic line comprises:
acquiring a first fiber core sensing signal of the first optical cable line and a second fiber core sensing signal of the second optical cable line;
and determining the position of a splicing point of the first optical cable line according to the first fiber core sensing signal, and determining the position of a splicing point of the second optical cable line according to the second fiber core sensing signal.
3. The method of claim 2, wherein determining a plurality of first core lengths from splice point locations of the first fiber optic cable run and a plurality of second core lengths from splice point locations of a second fiber optic cable run comprises:
determining a first overall fiber core length of the first optical cable line according to the first fiber core sensing signal, and determining a second overall fiber core length of the second optical cable line according to the second fiber core sensing signal;
determining a plurality of first fiber core lengths in the first overall fiber core length according to the splice point position of the first optical cable line, and determining a plurality of second fiber core lengths in the second overall fiber core length according to the splice point position of the second optical cable line.
4. The method of claim 1, wherein after determining that the splice location of the kth of the first fiber optic cable run or the second fiber optic cable run is the T-junction splice location, the method further comprises:
acquiring operation and maintenance data, wherein the operation and maintenance data comprise a first tower span of the first optical cable line and a second tower span of the second optical cable line;
and determining the actual geographic position of the T-joint welding point according to the first fiber core length and the first tower span and/or according to the second fiber core length and the second tower span.
5. The method of claim 4, further comprising:
and updating the actual geographic positions of the welding point position of the T-joint and the welding point position of the T-joint to the operation and maintenance data.
6. The method of any of claims 1-3, wherein the first cable run and the second cable run are fiber optic composite overhead ground wire cables in an extra-high voltage direct current line.
7. An optical cable T-junction positioning device, comprising:
the system comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring a splicing point position of a first optical cable line and a splicing point position of a second optical cable line, the splicing point positions comprise a common splicing point position and a T-joint splicing point position, and the first optical cable line and the second optical cable line pass through the same station;
the first determining unit is used for determining a plurality of first fiber core lengths according to the connection point position of the first optical cable line and determining a plurality of second fiber core lengths according to the connection point position of the second optical cable line;
a second determining unit, configured to determine a position of the T-junction fusion point according to a difference between the lengths of the plurality of first cores and the lengths of the plurality of second cores;
wherein the determining the T-junction fusion joint location from the difference in the first core lengths and the second core lengths comprises:
when the first fiber core length corresponding to the splicing point position of the kth first optical cable line is the same as the second fiber core length corresponding to the splicing point position of the kth second optical cable line, and the first fiber core length corresponding to the splicing point position of the kth first optical cable line is different from the second fiber core length corresponding to the splicing point position of the kth +1 second optical cable line, determining that the splicing point position of the kth first optical cable line or the second optical cable line is the T-junction welding point position, wherein k is a positive integer.
8. A computer device, comprising:
the system comprises a central processing unit, a memory and an input/output interface;
the memory is a transient storage memory or a persistent storage memory;
the central processor is configured to communicate with the memory and execute the operations of the instructions in the memory to perform the method of any of claims 1 to 6.
9. A computer-readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 6.
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