CN112729770A - Method and system for positioning fault point of track accompanying optical cable and storage - Google Patents

Method and system for positioning fault point of track accompanying optical cable and storage Download PDF

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CN112729770A
CN112729770A CN202011353971.6A CN202011353971A CN112729770A CN 112729770 A CN112729770 A CN 112729770A CN 202011353971 A CN202011353971 A CN 202011353971A CN 112729770 A CN112729770 A CN 112729770A
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track
mapping
optical fiber
train
optical cable
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CN112729770B (en
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李敏
李彬彬
刘赛
周梓欣
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ANHUI HUIYI COMMUNICATION SCIENCE CO LTD
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Anhui Weiquan Intelligent Technology Co ltd
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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
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52—Outage or fault management, e.g. fault detection or location

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

A fault point positioning method for a track accompanying optical cable comprises the following steps: obtaining the corresponding relation between optical fiber length nodes on the track accompanying optical cable and the geographical coordinates along the track; the method comprises the steps of obtaining optical fiber fault points on a track accompanying optical cable, and obtaining geographic coordinates corresponding to the optical fiber fault points by combining the corresponding relation between optical fiber length nodes on the track accompanying optical cable and geographic coordinates along the track. According to the method and the device, the target vibration signal acquired by the track accompanying optical cable corresponding to the track and the geographic coordinate information acquired by the surveying and mapping train running on the track are mapped based on time synchronization, so that the mapping between the optical fiber length node corresponding to the target vibration signal and the geographic coordinate is realized, and the matching of the geographic coordinate with the optical fiber length node where the fault is located is facilitated when the optical fiber fault is detected, and the fault position is accurately positioned.

Description

Method and system for positioning fault point of track accompanying optical cable and storage
Technical Field
The invention relates to the technical field of track optical fibers, in particular to a method and a system for positioning a fault point of a track accompanying optical cable and a storage.
Background
Track-accompanying optical cables, i.e., optical cables running along the track, are currently a common means of railway network communication and security monitoring.
Various mechanical construction processes such as farmland cultivation, factory construction, road maintenance, illegal construction and the like and natural disaster factors can often occur along the track, and great threats can be generated on the safety of the optical cable accompanying the track. The existing track accompanying optical cable safety state monitoring method (such as a railway optical cable state real-time monitoring system and method CN 108880668A; a railway safety monitoring system and monitoring method CN106452567A) can only realize the positioning of optical cable fault points along the length of the optical cable.
Because optical cable and track are crooked extension, and optical cable can appear bending, reserve optical cable joint, bypass the culvert, bypass the pond etc. relative to the track in laying process, therefore the length of optical cable and the position of track are not the one-to-one correspondence. When the track has a fault with the optical cable, it is difficult to obtain the precise position of the fault point on the track.
At present, after the optical cable fault point is located along the length of the optical cable, the approximate interval position of the optical fiber fault on the track can be inferred only according to the position corresponding relation between the full length of the optical cable and the full length of the track, but the position of the optical cable fault point on the track cannot be accurately determined, and the judgment can be carried out only by a manual secondary inspection method, so that the fault removal efficiency of the track communication optical cable is very low.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a method, a system and a storage for positioning a fault point of a track accompanying optical cable.
One of the purposes of the invention adopts the following technical scheme:
a fault point positioning method for a track accompanying optical cable comprises the following steps:
s100, obtaining the corresponding relation between optical fiber length nodes on the track accompanying optical cable and the geographic coordinates along the track;
s200, acquiring optical fiber fault points on the track accompanying optical cable, and acquiring geographic coordinates corresponding to the optical fiber fault points by combining the corresponding relation between optical fiber length nodes on the track accompanying optical cable and geographic coordinates along the track.
Preferably, the method further comprises step S300: and acquiring a scene picture associated with the geographic coordinate corresponding to the optical fiber fault point.
Preferably, in step S100, a mapping system carried by the train is used to perform mobile mapping on the track line to obtain geographic coordinates along the track line; the mapping system also collects scene pictures and associates the geographic coordinates collected at the same time with the scene pictures.
Preferably, step S100 specifically includes the following steps:
s101, recording a train carrying a mapping system as a mapping train, carrying out geographical mapping through the mapping system arranged on the mapping train, and acquiring geographical coordinate information of a track in real time;
s102, acquiring a vibration signal generated by running of a train on a track through an optical fiber in a track accompanying optical cable; recording a vibration signal corresponding to the mapping train as a target vibration signal, and acquiring an optical fiber length node corresponding to the target vibration signal according to the length of the mapping train and the installation position of the mapping system on the mapping train;
s103, associating the geographic coordinate information acquired by the same mapping train at the same time with the generated target vibration signal, and mapping between the optical fiber length node corresponding to the target vibration signal and the geographic coordinate information.
Preferably, in step S103, a target track is selected first, and geographic coordinate information collected when the mapping train runs on the target track is associated with the generated target vibration signal; the target track is a track between two adjacent stations along the railway.
Preferably, in step S103, when a plurality of trains run in the same direction on the target track, the arrangement sequence of the mapping trains is first obtained according to the departure time of the station, and then the target vibration signal of the corresponding mapping train on the track accompanying optical cable is obtained according to the arrangement sequence.
Preferably, in step S102, the method for acquiring the optical fiber length node corresponding to the target vibration signal according to the length of the mapping train and the installation position of the mapping system includes: firstly, acquiring a length value of an optical fiber length node along a railway, and acquiring a vibration detection range corresponding to the target vibration signal; the optical fiber length node corresponding to the target vibration signal is an intercepting range which takes the installation position of the mapping system on the mapping train as the center and takes the length value as the diameter in the corresponding vibration detection range; the length value is a fixed value.
Preferably, in step S102, the method for acquiring the optical fiber length node corresponding to the target vibration signal according to the length of the mapping train and the installation position of the mapping system includes: firstly, dividing a track accompanying optical cable into a plurality of optical fiber length nodes, and acquiring the optical fiber length nodes positioned in a vibration detection range of the target vibration signal; and acquiring an optical fiber length node where the mapping system is located as the optical fiber length node corresponding to the target vibration according to the mapping train length and the mapping system installation position.
The second purpose of the invention adopts the following technical scheme:
a rail-associated cable fault point locating system comprising: the storage module is used for storing a computer program;
the processing module is connected with the storage module and is used for realizing the method for positioning the fault point of the track accompanying optical cable when executing the computer program.
The third purpose of the invention adopts the following technical scheme:
a memory having stored therein a computer program which, when executed, implements the above-described method of track accompanying cable fault point location.
The invention has the advantages that:
1. according to the method, the vibration signals in the track accompanying optical cables corresponding to the track and the geographic coordinate information acquired by the mapping system carried by the mapping train running on the track are mapped on the basis of time synchronization, so that the mapping of the optical fiber length node where the vibration signals are located and the geographic coordinate obtained by mobile mapping is realized.
2. According to the invention, the train carries the mapping system to map the coordinates along the track, so that the mapping efficiency is improved, and manpower is released.
3. According to the method, based on the corresponding relation between the track and the track accompanying optical fiber, the geographic coordinate information detected by the mapping system and the simultaneity of the vibration signals collected by the optical fiber sensing system are combined, so that the accurate adaptation of the optical fiber length node and the track geographic coordinate is realized, and the method is favorable for matching the geographic coordinate with the optical fiber length node where the fault is located when the optical fiber fault is detected, and accurately positioning the fault position.
4. The geographical coordinate information collected by the mapping system is a bridge, scene pictures collected by the mapping system are correlated, and the optical fiber fault position is further checked by combining the scene pictures.
Drawings
Fig. 1 is a flowchart of a method for mapping positions between a track accompanying optical cable and a track according to embodiment 1;
fig. 2 is a schematic view of an optical fiber length node acquisition scenario provided in embodiment 1;
fig. 3 is a schematic view of another optical fiber length node acquisition scenario proposed in embodiment 1;
fig. 4 is a schematic view of an application scenario of a track accompanying optical cable and inter-track position mapping system according to embodiment 4;
fig. 5 is a flowchart of a method for positioning a fault point of a track accompanying optical cable according to embodiment 6.
Detailed Description
Example 1
Referring to fig. 1, the method for mapping a track accompanying optical cable and an inter-track position according to the present embodiment includes the following steps.
S101, recording the train with the mapping system as a mapping train, carrying out geographical mapping through the mapping system installed on the mapping train, and collecting geographical coordinate information of the track in real time.
S102, acquiring a vibration signal generated by running of a train on a track through an optical fiber in a track accompanying optical cable; recording a vibration signal corresponding to the mapping train as a target vibration signal, and acquiring an optical fiber length node corresponding to the target vibration signal according to the length of the mapping train and the installation position of the mapping system on the mapping train. In the specific implementation, in the step, the vibration signal can be collected through the redundant optical fiber in the track accompanying optical cable.
Specifically, in this step, the method for obtaining the optical fiber length node corresponding to the target vibration signal according to the length of the mapping train and the installation position of the mapping system includes: when a target vibration signal generated by a mapping train at any moment is obtained, firstly, a length value of an optical fiber length node on a railway line is obtained, and a vibration detection range corresponding to the target vibration signal is obtained; the optical fiber length node corresponding to the target vibration signal is an intercepting range which takes the installation position of the surveying and mapping system on the surveying and mapping train as the center and takes the length value as the diameter in the vibration detection range corresponding to the target vibration signal; the length value is a fixed value. Referring to fig. 2 specifically, in this embodiment, the corresponding optical fiber length node n is calculated according to the geographical coordinate information acquired by the mapping train each time and the vibration detection range Dn of the mapping train. In the specific implementation of this embodiment, the length value corresponds to the mapping train, and the length value is less than or equal to the distance that the corresponding mapping train runs on two adjacent geographic coordinate information acquisition time intervals, so as to avoid the situation that the same optical fiber length node maps two different geographic coordinates. In this embodiment, the range of the optical fiber length node n corresponding to the mapping train at the current time is shown in fig. 2.
In specific implementation, the optical fiber length node corresponding to the target vibration signal is obtained according to the length of the mapping train and the installation position of the mapping system, and the method can be realized by the following steps: dividing a track accompanying optical cable into a plurality of optical fiber length nodes along the track extension direction, and acquiring the optical fiber length nodes within the vibration detection range of a target vibration signal when the target vibration signal generated by a mapping train at any moment is acquired; and acquiring an optical fiber length node where the mapping system is located as an optical fiber length node corresponding to the target vibration signal according to the mapping train length and the mapping system installation position. For example, as shown in fig. 3, the pre-partitioned fiber length nodes on the track-following fiber optic cable comprise n-4 to n + 3. When the surveying and mapping train is located at the position shown in fig. 3, the vibration detection range is Dn, the vibration detection range Dn spans optical fiber length nodes n-3 to n +1, the length of the surveying and mapping train and the installation position of the surveying and mapping system on the surveying and mapping train can be calculated, the current surveying and mapping system is located on the optical fiber length nodes n, the optical fiber length nodes n serve as optical fiber length nodes corresponding to current target vibration signals, and geographic coordinate information collected by the surveying and mapping train at the current moment is mapped with the optical fiber length nodes n. In the specific implementation of this embodiment, the length of each optical fiber length node along the railway line should be less than or equal to the minimum distance that the mapping train runs on two adjacent geographic coordinate information acquisition time intervals, so as to avoid the situation that the same optical fiber length node maps two different geographic coordinates.
S103, associating the geographical coordinate information acquired by the same mapping train at the same time with the generated target vibration signal, and realizing mapping between the optical fiber length node corresponding to the target vibration signal and the geographical coordinate information, thereby realizing mapping between the track accompanying optical cable and the position between tracks.
In specific implementation, in step S103, a target track is first selected, and when a mapping train enters the target track, geographic coordinate information acquired when the mapping train runs on the target track is associated with a generated target vibration signal, so that an optical fiber length node corresponding to the target vibration signal is mapped with the geographic coordinate information associated with the target vibration signal.
In this embodiment, the geographic coordinate information acquired by the surveying and mapping system is a coordinate of the surveying and mapping system along the track, that is, a geographic coordinate of the track. In the embodiment, the geographical coordinates of the track and the optical fiber length nodes are mapped by surveying and mapping the operation of the train, so that the measurement is accurate, the automation degree is high, and the efficiency is high.
Example 2
In step S102 of this embodiment, when a plurality of trains run in the same direction on the target track, the track accompanying optical cable obtains a set of vibration signals at the same time, the number of the set of vibration signals is corresponding to the number of the trains running in the same direction, and each signal in the set of vibration signals corresponds to a different position of the track accompanying optical cable; and acquiring the arrangement sequence of the mapping train in the plurality of trains according to the departure time of the station or the arrival time of the train, comparing the arrangement sequence with the sequence of any group of vibration signals on the track accompanying optical cable, and acquiring the target vibration signals of the corresponding mapping train on the track accompanying optical cable at any moment.
It is assumed that, in the present embodiment, the track R can be set as the target track. The method comprises the steps that a track accompanying optical cable L of a track R collects a target vibration signal H generated by a surveying and mapping train C, geographic coordinate information D collected by a surveying and mapping system carried by the surveying and mapping train C is associated with the target vibration signal H with the same collection time, and an optical fiber length node corresponding to the vibration signal H and the geographic coordinate information D are mapped.
Specifically, the track R where the target vibration signal H is located refers to a track between two adjacent stations where the vibration signal H is located, and may be specifically referred to as (H; R1, R2), where H denotes the target vibration signal, R1 and R2 denote two adjacent train stations where the mapping train passes in sequence, and (H; R1, R2) denotes that the mapping train corresponding to the vibration signal H travels from the train station R1 to the train station R2.
When a plurality of trains run in the same direction on the measured track R and at least one mapping train runs on the measured track R, firstly, the arrangement sequence of the plurality of trains running in the same direction is obtained, and the target vibration signal of the corresponding mapping train on the track accompanying optical cable is obtained according to the arrangement sequence.
Suppose that there are 3 vibration signals H on the track accompanying optical cable L1、H2、H3Synchronously generated and the 3 vibration signals move in the same direction on the track accompanying optical cable L, and in the signal moving direction, H1At the forefront, H3At the end of the run. Meanwhile, three trains C are arranged on the track R corresponding to the track accompanying optical cable L1、C2、C3Running in the same direction and the running direction is equal to 3 vibration signals H1、H2、H3Are in the same direction of movement, and C1At the forefront, C3At the end of the run. Then, it is known that the vibration signal H1Associated train C1Vibration signal H2Associated train C2Vibration signal H3Associated train C3。
Suppose, train C2For mapping trains, the vibration signal H2Is vibrated for the purposeA signal. Train C2The carried geographic coordinate information collected by the mapping system is recorded as D2Obtaining a target vibration signal H2Corresponding optical fiber length node and geographic coordinate information D2The mapping relationship of (2).
Example 3
In step S103 of embodiment 2, the target track is a track between two adjacent stations along the railway. Therefore, the track and the track accompanying optical cable are divided by the distance between two adjacent stations, so that the optical fiber detectors are conveniently arranged at the stations, the optical fiber length nodes are accurately positioned, and the mapping precision of the optical fiber length nodes and the geographic coordinates is further improved.
In this embodiment, two adjacent stations on a line are marked as a and B, and a track accompanying optical cable between the stations a and B of the train is marked as LABUnit track accompanying optical cable LABCollected vibration signal HiNotation as { vibration signal HiTime of acquisition TiOptical fiber length node LiIn which Ti is the vibration signal HiWith Li representing the vibration signal HiCorresponding fiber length nodes. Meanwhile, the geographic coordinate information Dj collected by a mapping system carried by a mapping train running on the track between the train stations A and B is recorded as { geographic coordinate information DjTime of acquisition TjAnd Tj represents the acquisition time of the geographic coordinate information Dj. Thus, in this embodiment, it can be confirmed that the track accompanying optical cable mark L is first identified according to the train stations a and BABTarget vibration signal { vibration signal H }iTime of acquisition TiOptical fiber length node LiAnd associating the geographic coordinate information Dj with the optical fiber length node Li according to the condition that Ti is Tj, and acquiring a mapping relation between the two.
Example 4
Referring to fig. 4, in the present embodiment, a track accompanying optical cable and inter-track position mapping system is provided, including: the fiber detector 1, the communication module 6, the processing module 7 and the storage module 8.
The optical fiber detector is used for detecting vibration signals in the track accompanying optical cable corresponding to the target track.
The communication module 6 is used for communicating with the fiber-optic probe 1 and the mapping system 4 mounted on the train 3.
And the storage module 8 is used for storing the computer program.
The processing module 7 is respectively connected to the communication module 6 and the storage module 8, and is configured to implement the track accompanying optical cable and inter-track position mapping method described in embodiment 1, embodiment 2, embodiment 3, or embodiment 4 when executing a computer program, so as to implement mapping between the optical fiber length node and the geographical coordinate on the track 5.
In specific implementation, the processing module 7 may set a region range, and the processing module communicates with the optical fiber detector for detecting the vibration signal in the corresponding region range and the mapping system in the corresponding region range through the communication module. Therefore, signal crosstalk in different region ranges can be avoided through region range division, and accuracy and reliability of data processing are improved.
In specific implementation, the region range associated with the processing module 7 includes at least one section of track located between adjacent train stations, so that the train stations can accurately adapt the corresponding relationship between the track 5 and the track accompanying optical cable 2, thereby ensuring the association accuracy between the target vibration signal and the geographic coordinate information.
Example 5
The present embodiment provides a memory storing a computer program for implementing the track accompanying optical cable and inter-track position mapping method described in embodiment 1, embodiment 2, or embodiment 3 when the computer program is executed.
Example 6
Referring to fig. 5, the present embodiment provides a method for positioning a fault point of a track accompanying optical cable, which specifically includes the following steps:
s100, obtaining the corresponding relation between the optical fiber length node on the track accompanying optical cable and the geographical coordinates along the track.
Specifically, in this step, the method for mapping positions between the track accompanying optical cable and the track provided by the present invention is adopted to obtain the correspondence between the optical fiber length node on the track accompanying optical cable and the geographical coordinate along the track, that is, the target vibration signal acquired by the track accompanying optical cable corresponding to the track and the geographical coordinate information acquired by the surveying and mapping train operating on the track are mapped based on time synchronization, so that mapping between the optical fiber length node corresponding to the target vibration signal and the geographical coordinate information is realized.
In this embodiment, the obtaining of the corresponding relationship between the optical fiber length node on the track accompanying optical cable and the geographical coordinate along the track may specifically refer to embodiments 1 to 3.
S200, acquiring optical fiber fault points on the track accompanying optical cable, and acquiring geographic coordinates corresponding to the optical fiber fault points by combining the corresponding relation between optical fiber length nodes on the track accompanying optical cable and geographic coordinates along the track.
Compared with the existing mode of marking the optical fiber fault position by the optical fiber length, in the embodiment, after the optical fiber fault point, namely the optical fiber length node where the fault position is located, is obtained, the optical fiber fault point is further positioned by the geographical coordinates, so that the optical fiber fault position is clear and visible, and the secondary positioning of optical fiber maintenance is avoided.
In specific implementation, in this embodiment, step S300 may be further configured: and acquiring a scene picture associated with the geographic coordinate corresponding to the optical fiber fault point. Specifically, the scene picture is included in the geographic coordinate information collected by the mapping system.
That is, in this embodiment, the mapping system obtains the corresponding relationship between the geographic coordinates along the track and the scene picture, so that after obtaining the geographic coordinates corresponding to the optical fiber fault point, the corresponding scene picture is further obtained, so as to assist the positioning of the optical fiber fault point through the scene picture.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A fault point positioning method for a track accompanying optical cable is characterized by comprising the following steps:
s100, obtaining the corresponding relation between optical fiber length nodes on the track accompanying optical cable and the geographic coordinates along the track;
s200, acquiring optical fiber fault points on the track accompanying optical cable, and acquiring geographic coordinates corresponding to the optical fiber fault points by combining the corresponding relation between optical fiber length nodes on the track accompanying optical cable and geographic coordinates along the track.
2. The method for locating the fault point of the track-accompanying optical cable according to claim 1, further comprising the step S300 of: and acquiring a scene picture associated with the geographic coordinate corresponding to the optical fiber fault point.
3. The method for locating the fault point of the track accompanying optical cable according to claim 2, wherein in step S100, the track line is subjected to mobile mapping by a mapping system carried by a train, so as to obtain the geographic coordinates of the track line; the mapping system also collects scene pictures and associates the geographic coordinates collected at the same time with the scene pictures.
4. The method for locating the fault point of the track-accompanying optical cable according to claim 1, wherein the step S100 specifically includes the steps of:
s101, recording a train carrying a mapping system as a mapping train, carrying out geographical mapping through the mapping system arranged on the mapping train, and acquiring geographical coordinate information of a track in real time;
s102, acquiring a vibration signal generated by running of a train on a track through an optical fiber in a track accompanying optical cable; recording a vibration signal corresponding to the mapping train as a target vibration signal, and acquiring an optical fiber length node corresponding to the target vibration signal according to the length of the mapping train and the installation position of the mapping system on the mapping train;
s103, associating the geographic coordinate information acquired by the same mapping train at the same time with the generated target vibration signal, and mapping between the optical fiber length node corresponding to the target vibration signal and the geographic coordinate information.
5. The method for locating the fault point of the track accompanying optical cable according to claim 4, wherein in step S103, a target track is first selected, and geographical coordinate information collected when the mapping train runs on the target track is associated with the generated target vibration signal; the target track is a track between two adjacent stations along the railway.
6. The method as claimed in claim 5, wherein in step S102, when a plurality of trains are traveling in the same direction on the target track, the sequence of the mapped trains is obtained according to the departure time of the station, and the target vibration signals of the mapped trains on the track accompanying cable are obtained according to the sequence.
7. The method for locating the fault point of the track accompanying optical cable according to claim 4, wherein in step S102, the method for obtaining the optical fiber length node corresponding to the target vibration signal according to the mapping train length and the mapping system installation position includes: firstly, acquiring a length value of an optical fiber length node along a railway, and acquiring a vibration detection range corresponding to the target vibration signal; the optical fiber length node corresponding to the target vibration signal is an intercepting range which takes the installation position of the mapping system on the mapping train as the center and takes the length value as the diameter in the corresponding vibration detection range; the length value is a fixed value.
8. The method for locating the fault point of the track accompanying optical cable according to claim 4, wherein in step S102, the method for obtaining the optical fiber length node corresponding to the target vibration signal according to the mapping train length and the mapping system installation position includes: firstly, dividing a track accompanying optical cable into a plurality of optical fiber length nodes, and acquiring the optical fiber length nodes positioned in a vibration detection range of the target vibration signal; and acquiring an optical fiber length node where the mapping system is located as the optical fiber length node corresponding to the target vibration according to the mapping train length and the mapping system installation position.
9. A rail-associated cable fault point locating system, comprising: the storage module is used for storing a computer program;
a processing module is connected to the storage module, the processing module is configured to implement the method for locating a fault point of a track-bound optical cable according to any one of claims 1 to 8 when executing the computer program.
10. A memory having stored therein a computer program which, when executed, implements the method of track-bound cable fault point location according to any one of claims 1 to 8.
CN202011353971.6A 2020-11-26 2020-11-26 Track companion optical cable fault point positioning method, system and memory Active CN112729770B (en)

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CN111830546A (en) * 2020-07-20 2020-10-27 北京天润海图科技有限公司 Outdoor railcar landmark deployment method

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