CN114362819A - Optical cable fault point positioning method, device, equipment and medium - Google Patents

Abstract

The embodiment of the application provides a method, a device, equipment and a medium for positioning an optical cable fault point, which relate to the technical field of network communication, and the method comprises the following steps: acquiring a first lighting distance between a measurement starting point and a fault point; determining a first reference point and a second reference point based on the first lighting distance and the lighting distance from the measurement starting point to each welding point on the optical cable section to be measured; acquiring the position of an optical cable identification pile between a first datum point and a second datum point; and determining the position of the fault point based on the first lighting distance and the position of the optical cable identification pile between the first datum point and the second datum point. The position of the fault point can be accurately positioned.

Description

A method, device, equipment and medium for locating fault point of optical cable

technical field

The present application relates to the technical field of network communication, and in particular, to a method, device, equipment and medium for locating a fault point of an optical cable.

Background technique

With the application of optical fiber communication technology, the number of optical cables laid underground in cities is also increasing, and the maintenance of optical cables has become more arduous. In the maintenance of optical cables, locating the fault point of the optical cable is the focus of the maintenance work.

The current method of locating the fault point of the optical cable mainly relies on the optical time-domain reflectometer (OTDR) and other equipment in the equipment room to transmit optical signals into the optical cable to obtain the lighting distance between the equipment room and the fault point. , and then the maintenance personnel judge the approximate location of the fault point based on the lighting distance and the sum of the straight-line distances between all adjacent optical cable marking piles on the optical cable laying route through years of experience.

Optical cables are usually not completely straight, but have a certain curvature, and the optical cable marking piles will not be set very densely. In order to facilitate the maintenance of the optical cables, the optical cables will be reserved by crimping in some positions during the laying of the optical cables. The lighting distance obtained by OTDR and other equipment is the length of the optical cable between the fault point and the equipment room, so there is a large deviation between the lighting distance and the sum of the straight-line distances between all adjacent optical cable marking piles on the optical cable laying route. Such a deviation will cause maintenance personnel to fail to find the exact location of the fault point when locating the fault point of the optical cable, resulting in poor location accuracy of the fault point.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present application is to provide a method, device, equipment and medium for locating the fault point of an optical cable, so as to accurately locate the fault point of the optical cable, and the specific technical scheme is as follows:

In a first aspect, an embodiment of the present application discloses a method for locating a fault point of an optical cable, and the method includes:

Obtain the first lighting distance between the measurement starting point and the fault point, and the first lighting distance is the distance between the measurement starting point and the fault point obtained by transmitting an optical signal to the optical cable section to be measured at the measurement starting point. lighting distance;

A first reference point and a second reference point are determined based on the first lighting distance and the lighting distance from the measurement starting point to each fusion point on the cable segment to be measured, and the first reference point is the The welding point closest to the fault point on one side of the fault point, and the second reference point is the welding point closest to the fault point on the other side of the fault point;

obtaining the position of the optical fiber cable marker between the first reference point and the second reference point;

The position of the fault point is determined based on the first lighting distance and the position of the optical fiber cable marking pile between the first reference point and the second reference point.

In a second aspect, an embodiment of the present application discloses a device for locating a fault point of an optical cable, and the device includes:

The first acquisition module is used to acquire the first lighting distance between the measurement starting point and the fault point, and the first lighting distance is the measurement obtained by transmitting an optical signal to the optical cable section to be measured at the measurement starting point The lighting distance between the starting point and the fault point;

The first determination module is used to determine the first reference point and the second reference point based on the first lighting distance and the lighting distance from the measurement starting point to each fusion point on the optical cable segment to be measured. The first reference point is the welding point closest to the fault point on one side of the fault point, and the second reference point is the welding point closest to the fault point on the other side of the fault point;

a second acquisition module, configured to acquire the position of the optical cable marking pile between the first reference point and the second reference point;

The second determining module is configured to determine the position of the fault point based on the first lighting distance and the position of the optical cable marking pile between the first reference point and the second reference point.

In a third aspect, an embodiment of the present application discloses an electronic device, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus;

memory for storing computer programs;

The processor is configured to implement the method steps described in any one of the above aspects when executing the program stored in the memory.

In a fourth aspect, an embodiment of the present application discloses a computer-readable storage medium, characterized in that, a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, any one of the above-mentioned aspects is implemented. described method steps.

In a fifth aspect, the embodiments of the present application further provide a computer program product including instructions, which, when executed on a computer, enables the computer to execute any one of the above-mentioned methods.

By adopting the above technical solutions, the method, device, equipment and medium for locating the fault point of the optical cable provided by the embodiments of the present application, by obtaining the first lighting distance of the fault point, based on the first lighting distance of the fault point and the distance on the cable section to be tested The lighting distance of the fusion point, determine the first reference point and the second reference point of the fault point, and accurately locate the range of the fault point of the optical cable between the first reference point and the second reference point, which is equivalent to removing the optical cable to be tested. The influence of the reserved optical cable on the segment and the bending distribution of the optical cable beyond the first reference point to the second reference point on the fault point location greatly improves the accuracy of the fault point location. By calculating the position of the optical cable marking pile and the first lighting distance between the two reference points, the position of the fault point can be obtained, which can reduce the bending distribution of the optical cable between the first reference point and the second reference point and locate the fault point of the optical cable. Influence, improve the accuracy of fiber optic cable fault point location.

Of course, implementing any product or method of the present application does not necessarily require achieving all of the advantages described above at the same time.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application, and for those of ordinary skill in the art, other embodiments can also be obtained according to these drawings.

1 is a flowchart of a method for locating a fault point of an optical cable according to an embodiment of the present application;

FIG. 2 is another flowchart of a method for locating a fault point of an optical cable according to an embodiment of the present application;

FIG. 3a is a schematic diagram of a method for querying a fault point of an optical cable provided by an embodiment of the application;

FIG. 3b is a schematic diagram of another optical cable fault point query method provided by an embodiment of the application;

4 is a flowchart of another method for locating a fault point of an optical cable according to an embodiment of the present application;

5a is a schematic diagram of a reference point determination method provided by an embodiment of the present application;

5b is a schematic diagram of another reference point determination method provided by an embodiment of the present application;

6 is another flowchart of a method for locating a fault point of an optical cable according to an embodiment of the present application;

FIG. 7 is a schematic diagram of another optical cable fault point query method provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of an optical cable fault point locating device according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art based on the present application fall within the protection scope of the present application.

The method for locating a fault point of an optical cable provided by the embodiment of the present application may be performed by an electronic device, and the electronic device may be a device such as a smart phone, a tablet computer, a desktop computer, and a server.

A method for locating a fault point of an optical cable provided by an embodiment of the present application is described in detail below. As shown in FIG. 1 , an embodiment of the present application provides a method for locating a fault point of an optical cable, and the method includes:

S101. Obtain a first lighting distance between a measurement starting point and a fault point.

Wherein, the first lighting distance is the lighting distance between the measurement starting point and the fault point obtained by transmitting an optical signal to the optical cable segment to be measured at the measurement starting point.

In the embodiment of the present application, the fault point is the breakpoint of the optical cable laid underground or overhead, and the measurement starting point is the active equipment in the communication equipment room that can communicate with any section of the optical cable section to be measured with the fault point.

When there is a fault point in the optical cable segment between the two communication equipment rooms, which leads to the interruption of communication, the technician can check the fault warning from the port of the equipment connected to the optical fiber cable segment in one of the communication equipment rooms. The OTDR device transmits an optical signal to the port, so that the optical signal is transmitted in the optical cable segment connected to the port, so as to measure the lighting distance from the active device in the communication room to the fault point of the optical cable segment.

Since the optical signal sent by the OTDR device will reach the fault point through the optical cable from the measurement starting point, the first optical distance is the length of the optical cable between the measurement starting point and the fault point.

S102, determining a first reference point and a second reference point based on the first lighting distance and the lighting distance from the measurement starting point to each fusion point on the optical cable segment to be measured.

Wherein, the first reference point is the welding point closest to the fault point on one side of the fault point, and the second reference point is the welding point closest to the fault point on the other side of the fault point;

In the embodiment of the present application, the optical cable connecting two communication equipment rooms is usually spliced by multiple shorter optical cables, and there will be fusion splices between two adjacent sections of the optical cable, and the lighting distance from the communication equipment room to these fusion points It can be measured by the optical signal emitted by the OTDR device.

In one embodiment, for two adjacent communication equipment rooms, there are multiple optical cable segments between the two adjacent communication equipment rooms, and each optical fiber cable segment has a splicing point. Shot distance between splices, and save the shot distance in the database. Furthermore, when locating the fault point, the electronic device can obtain the lighting distance from the measurement starting point to each fusion point on the optical cable segment to be measured from the database according to the measurement starting point and the optical cable segment information input by the user.

For example, there are optical cable 1, optical cable 2 and optical cable 3 between communication equipment room 1 and communication equipment room 2. Optical cable 1 and optical cable 2 are connected by fusion point A, and optical cable 2 and optical cable 3 are connected by fusion point B.

The OTDR equipment can be used in the communication equipment room 1 to light the optical cable in the direction of the communication equipment room 2, so as to obtain the lighting distance from the communication equipment room 1 to the fusion point A and the lighting distance to the fusion point B.

In addition, the OTDR equipment can be used in the communication equipment room 2 to light the optical cable in the direction of the communication equipment room 1, so as to obtain the lighting distance from the communication equipment room 2 to the fusion point A and the lighting distance to the fusion point B.

S103: Acquire the position of the optical cable marking pile between the first reference point and the second reference point.

Optical cable marking piles are marking piles set on the ground to mark the position of optical cables, manholes of underground pipelines, poles of pole roads, etc. Usually, the marking piles of optical cables will have the words "there are optical cables under, excavation prohibited". The location of the marking pile is the longitude and latitude of the optical cable marking pile.

In the embodiment of the present application, the technician can collect the longitude and latitude of the fusion point on each optical cable segment and the longitude and latitude of the optical cable identification pile through the Global Positioning System (Global Positioning System, GPS) positioning device in advance, and save them in the database. After the position of the first reference point and the position of the second reference point, the position of the optical cable marking pile between the first reference point and the second reference point can be obtained from the database.

S104 , determining the location of the fault point based on the first lighting distance and the location of the optical cable marking pile between the first reference point and the second reference point.

The method provided by the embodiment of the present application determines the first reference point of the fault point by obtaining the first lighting distance of the fault point, and based on the first lighting distance of the fault point and the lighting distance of each welding point on the optical cable segment to be tested and the second reference point, the range of the fault point of the optical cable is accurately positioned between the first reference point and the second reference point, which is equivalent to removing the reserved optical cable and the first reference point to the second reference point on the cable segment to be tested. The influence of the bending distribution of the optical cable on the fault point location greatly improves the accuracy of the fault point location. By performing the calculation, the position of the fault point can be obtained, the influence of the bending distribution of the optical cable between the first reference point and the second reference point on the location of the optical cable fault point can be reduced, and the accuracy of the location of the optical cable fault point can be improved.

In another embodiment of the present disclosure, as shown in FIG. 2 , the method includes the following steps:

S201. Acquire the information of the measurement starting point and the optical cable section to be measured input by the user on the Geographic Information System (Geographic Information System or Geo-Information system, GIS) interface.

S202. Receive a user's measurement instruction.

The technician can input the information of the first lighting distance, the measurement starting point, and the optical cable segment to be measured into the electronic device, and click the start measurement button. Accordingly, the electronic device can receive the user's measurement instruction.

In practice, the optical cable connecting the two communication rooms A and B consists of multiple cores, but not all the cores in the optical cable are connected from A to B, and the optical cable between A and B may have an optical junction point, that is, A part of the fiber cores in this section of optical cable is tapped to other communication rooms at the optical junction point.

Therefore, the user has two input methods in the fault point query interface:

1. As shown in Figure 3a, if all the fiber cores of the optical cable section between the communication room AB are not tapped, you need to input the first lighting distance, measurement starting point and measurement direction in the query interface.

2. As shown in Figure 3b, if part of the fiber core of the optical cable segment between the communication equipment room AB is tapped to other equipment rooms, the port connecting the fiber core of the computer room B in the equipment room A is 2TA-01-02-A-2 -11-1, you need to enter the first lighting distance, measurement starting point, and the fiber core port 2TA-01-02-A-2-11-1 in the A computer room connected to the B computer room in the query interface.

S203 , in response to the measurement instruction, obtain the first lighting distance from the measurement starting point to the fault point, and obtain the lighting distance from the measurement starting point to each fusion point on the cable segment to be measured based on the information of the optical cable segment to be measured.

After S203, S102 to S104 may be performed.

With this method, the user only needs to input the information of the first lighting distance, the measurement starting point and the optical cable segment to be measured, and click the measurement button to accurately locate the fault point. The fault point location does not need to rely on manual calculation, and the operation is simple and fast. .

In another embodiment of the present application, as shown in FIG. 4 , on the basis of the foregoing embodiment, S102 may be specifically implemented as:

S1021 , based on the first lighting distance and the lighting distance from the measurement starting point to each fusion point on the optical cable segment to be measured, determine the target fusion point closest to the fault point.

S1021 can be specifically implemented as:

Subtract the lighting distance from the measurement starting point to each fusion point on the optical cable segment to be measured and the first lighting distance respectively, and take the absolute value of each difference to obtain the distance between each fusion point and the fault point;

Determine the minimum distance between each fusion point and the fault point, and obtain the target fusion point closest to the fault point.

That can be achieved by the following formula:

P=min(|BM1-BP|,|BM2-BP|,...,|BMn-BP|)

Among them, P is the target fusion point closest to the fault point, BMn represents the lighting distance from the measurement starting point to the nth fusion point on the cable segment to be measured, and BP represents the OTDR lighting distance from the current fault point to the measurement starting point, namely Measure the lighting distance from the starting point to the fault point. In actual operation, keep the measurement starting point of the BMn value, the measurement starting point of the BP value, and the measured optical cable segment consistent, so that the OTDR lighting direction of the BMn value and the BP value are consistent.

|BM1-BP|, |BM2-BP|,…,|BMn-BP| represent the distance between each fusion point and the fault point, respectively.

Obtain the minimum value of |BM1-BP|, |BM2-BP|,…,|BMn-BP|, that is, to determine the minimum value of the distance between each welding point and the fault point, and then the distance to the fault point can be obtained. The nearest target weld point.

For example, if the minimum distance between each welding point and the fault point is |BM2-BP|, the target welding point is determined to be the welding point corresponding to the lighting distance BM2.

By subtracting the lighting distance from the measurement starting point to each splicing point on the optical cable segment to be tested and the first illuminating distance, and taking the absolute value of each difference, it is equivalent to obtaining the optical cable between each fusion point and the fault point. Then, by determining the minimum value of the absolute value of each difference, it is equivalent to determining the fusion point with the shortest optical cable length between the fault point and the fault point, that is, determining the target fusion point with the closest distance to the fault point. The target fusion splicing point that is closest to the fault point is determined, thereby improving the accuracy of fault point location.

S1022, if the second lighting distance from the measurement starting point to the target fusion point is less than the first lighting distance, then determine that the first reference point is the target fusion point, and the second reference point is the target fusion point in the direction from the measurement start point to the target fusion point. The next splice of the splice.

For example, as shown in Figure 5a, the measurement starting point is computer room A, the fault point is C, and the target fusion point is B. It can be understood that the three points of ACB are on the same optical cable segment, and the lighting distance from A to B is the second lighting Distance, the lighting distance from A to C is the first lighting distance.

Assume that in the direction from A to B, the next welding point of B is E, and the previous welding point of B is D;

If the second lighting distance is smaller than the first lighting distance, B is the first reference point, and E is the second reference point.

S1023. If the second lighting distance is greater than the first lighting distance, the second reference point is the target fusion point, and the first reference point is the last fusion point of the target fusion point in the direction from the measurement starting point to the target fusion point.

Following the previous example, as shown in FIG. 5b, if the second lighting distance is greater than the first lighting distance, B is the second reference point, and D is the first reference point.

In another embodiment of the present application, if the first lighting distance is equal to the second lighting distance, the position of the fault point and the target welding point coincide, and the electronic device can directly determine the position of the fault point as the position of the target welding point .

By adopting this method, the target welding point closest to the fault point can be determined through the first lighting distance and the lighting distance of each welding point on the optical cable segment to be measured, and then by comparing the first lighting distance and the measurement starting point to the target The positional relationship between the target welding point and the fault point can be obtained by the size relationship of the second lighting distance of the welding point. Furthermore, the welding point on the other side of the fault point that is closest to the fault point can be determined, that is, the position of the fault point can be precisely positioned between two adjacent welding points, that is, the first reference point and the second reference point between. Since the lighting distance can reflect the real length of the optical cable between the measurement starting point and the fault point or the fusion point, the fault point is located between the first reference point and the second reference point, which excludes the first reference point and the second reference point. The influence of the reserved length of the optical cable outside the two reference points and the bending of the optical cable on the positioning accuracy of the fault point improves the positioning accuracy.

In another embodiment of the present application, on the basis of the foregoing embodiment, the foregoing step S104 may be specifically implemented as:

First, obtain the position information of the curve between the first reference point and the second reference point through the st_makeline() function:

geometryBM=st_makeline(geometry[g1, g2...gn-1, gn])

g1 is the GIS information corresponding to the longitude and latitude of the first reference point, gn is the GIS information corresponding to the longitude and latitude of the second reference point, and g2...gn-1 represent the longitude and latitude of the optical cable identification pile in the direction from the first reference point to the second reference point in turn Corresponding GIS information.

The built-in function of PostGIS is a commonly used function in the process of developing a geographic information system, and the function st_makeline() in the built-in function of PostGIS is a function that generates lines from the positions of multiple points. The sequence of ...gn-1, gn generates a curve, and the two ends of the curve are the first reference point and the second reference point.

geometry() is used to convert data types. Since g1, g2...gn-1, and gn in this application are GIS information corresponding to latitude and longitude, they are the data types of individual points. The function st_makeline() can convert the data types of points into lines. The data type, that is, the generated geometryBM is the position information of the curve from the first reference point to the second reference point.

Introduce the built-in function ST_LineInterpolatePoint() of PostGIS:

The function ST_LineInterpolatePoint( ) is a function for calculating the position of the unknown point when the conditions 1 and 2 are satisfied.

Wherein, the unknown point is located between two endpoints, and condition 1 is that the positions of the two endpoints are known, and the positions of multiple points between the two endpoints are known.

Condition 2 is the ratio of the distance between the known unknown point and one of the endpoints to the distance between the two endpoints.

The application scenario of the built-in function is replaced with the scenario in the embodiment of the present application, that is, in the embodiment of the present application, the above two endpoints are the first reference point and the second reference point, the unknown point is the fault point, and the gap between the two endpoints is The position is the position of the fiber optic cable marking pile between the first reference point and the second reference point.

By replacing the above scenarios, the GIS positioning formula of the fault point can be obtained:

Bpgeometry=ST_LineInterpolatePoint(geometryBM,(BP-BMg1)/(ST_Length(sd_st_transform(geometryBM,26986))));

Among them, Bpgeometry is the location of the fault point;

geometryBM is the position information of the curve between the first reference point and the second reference point;

BP is the first lighting distance;

BMg1 is the lighting distance from the test starting point to the first reference point;

The function sd_st_transform(, 26986) is used to convert the position information of the curve between the first reference point and the second reference point into position coordinates in the 26986 coordinate system;

The function ST_Length( ) calculates the length of the curve between the first reference point and the second reference point in the 26986 coordinate system according to the converted coordinate points of the 26986 coordinate system.

It can be understood that (BP-BMg1)/(ST_Length(sd_st_transform(geometryBM, 26986))) is the ratio of the distance from the first reference point to the fault point to the length of the curve from the first reference point to the second reference point, and then , the function ST_LineInterpolatePoint() can calculate the latitude and longitude of the fault point according to the ratio and geometryBM.

It should be noted that the function ST_LineInterpolatePoint() and the function st_makeline() are both built-in functions of PostGIS. For the calculation principles of the above functions, please refer to the relevant description.

Using this method, based on the PostGIS routing and positioning principle, the GIS information corresponding to the longitude and latitude of the first reference point, the GIS information corresponding to the longitude and latitude of the second reference point, and the longitude and latitude of the optical cable marking pile between the first reference point and the second reference point are used. The corresponding GIS information generates the position information of the curve between the first reference point and the second reference point, and converts the position information of the curve into the position coordinates in the 26986 coordinate system, and then calculates the curve based on the coordinates and the function ST_Length() The length in the 26986 coordinate system does not directly calculate the straight-line distance between the first reference point and the second reference point, so that the calculated length of the curve between the first reference point and the second reference point is closer to the first reference point. The length of the optical cable bent between the reference point and the second reference point, by calculating the ratio of the distance from the first reference point to the fault point to the length of the curve from the first reference point to the second reference point, so as to achieve a more accurate calculation of the fault point The position in the direction from the first reference point to the second reference point. Furthermore, combined with the position information of the curve between the first reference point and the second reference point, the position of the fault point can be obtained through the function ST_LineInterpolatePoint(). accuracy of point positioning.

In the embodiment of the present application, as shown in FIG. 6 , on the basis of the above-mentioned embodiment, after step S104, it further includes:

S601. Display the location of the fault point on the GIS map of the GIS interface of the geographic information system.

As shown in Figure 7, for example, when the user enters the GIS interface, the first lighting distance is 6530m, the measurement starting point is the transmission computer room on the second floor of the hub building, and the direction is the direction from the transmission computer room on the second floor of the hub building to the Shiliulihe computer room, click Start Measure button, the location of the optical cable line to be measured and the fault point on the line will be displayed in the GIS map of the geographic information platform.

By adopting this method, the location of the fault point will be directly displayed on the GIS map interface of the geographic information platform, so that the location of the optical cable fault point is intuitive and accurate, and the experience dependence of the line maintenance personnel is eliminated, so that the maintenance personnel who are not familiar with the on-site routing can also quickly locate the optical cable. The location of the fault point; when the optical cable fault occurs, the line maintenance personnel can directly go to the corresponding location to repair the optical cable according to the location of the fault point displayed on the map, without the need for full inspection.

In the embodiment of the present application, the geographic information platform is used to execute the method for locating the fault point of the optical cable provided by the embodiment of the present application, and the specific construction process of the geographic information platform is as follows:

The geodetic mapping map is loaded through the geographic server GeoServer, and the system platform is built in combination with the administrative area planning boundary information.

In the background of the system, technicians perform the entry of dummy resource information such as optical cables, splice boxes, and optical switches in the area, as well as the association of optical fibers and terminals, and configure the optical cable calculation functions and formulas in the above embodiments in the system.

The GIS information provided by the PostgresSQL database generates a geographic layer containing optical cable routes on GeoServer, and displays the geographic layer. PostgreSQL is an object-relational database management system.

By adopting this method, the geographic information platform can automatically locate the fault point according to the first lighting distance input by the user, the position of the optical cable marking pile and the position of the welding point in the platform, and display the calculated position of the fault point on the geographic information platform. On the GIS map, that is, the user only needs to input the first lighting distance and the measurement starting point and the information of the optical cable section to be measured in the user interface, and click to start the measurement to easily and intuitively see the geographical location of the fault point on the user interface. This platform can solve the problem of telecommunication It has strong applicability for operators to locate cable fault points in various production scenarios.

Corresponding to the above method embodiments, the embodiments of the present application further provide a device for locating fault points of an optical cable. As shown in FIG. 8 , the device includes:

The first acquisition module 801 is used to acquire the first lighting distance between the measurement starting point and the fault point, and the first lighting distance is the difference between the measurement starting point and the fault point obtained by transmitting an optical signal to the optical cable section to be measured at the measurement starting point. the lighting distance between

The first determination module 802 is used to determine the first reference point and the second reference point based on the first lighting distance and the lighting distance from the measurement starting point to each welding point on the optical cable segment to be measured, and the first reference point is the fault point The welding point closest to the fault point on one side, and the second reference point is the welding point closest to the fault point on the other side of the fault point;

The second acquisition module 803 is used to acquire the position of the optical cable marking pile between the first reference point and the second reference point;

The second determining module 804 is configured to determine the position of the fault point based on the first lighting distance and the position of the optical cable marking pile between the first reference point and the second reference point.

In another embodiment of the present application, the first determining module 802 is specifically configured to:

Based on the first lighting distance and the lighting distance from the measurement starting point to each fusion point on the cable segment to be measured, determine the target fusion point closest to the fault point;

If the second lighting distance from the measurement starting point to the target welding point is less than the first lighting distance, the first reference point is determined as the target welding point, and the second reference point is the target welding point in the direction from the measurement starting point to the target welding point. the next fusion point;

If the second lighting distance is greater than the first lighting distance, the second reference point is the target fusion point, and the first reference point is the last fusion point of the target fusion point in the direction from the measurement starting point to the target fusion point.

In another embodiment of the present application, the first determining module 802 is specifically configured to:

Subtract the lighting distance from the measurement starting point to each fusion point on the optical cable segment to be measured and the first lighting distance respectively, and take the absolute value of each difference to obtain the distance between each fusion point and the fault point;

Determine the minimum distance between each fusion point and the fault point, and obtain the target fusion point closest to the fault point.

In another embodiment of the present application, the second determining module 804 is specifically configured to:

Calculate the location of the failure point according to the following expression:

Calculate the location of the failure point according to the following expression:

Bpgeometry=ST_LineInterpolatePoint(geometryBM,(BP-BMg1)/(ST_Length(sd_st_transform(geometryBM,26986))));

Among them, geometryBM=st_makeline(geometry[g1, g2...gn-1, gn]);

geometryBM is the position information of the curve between the first reference point and the second reference point;

The st_makeline() function is used to generate lines from points;

g1 is the GIS information corresponding to the latitude and longitude of the first reference point, gn is the GIS information corresponding to the latitude and longitude of the second reference point, and g2...gn-1 sequentially represent the position of the optical cable identification pile in the direction from the first reference point to the second reference point. GIS information corresponding to latitude and longitude;

BP is the first lighting distance;

BMg1 is the lighting distance from the test starting point to the first reference point;

The function sd_st_transform(, 26986) is used to convert the position information of the curve between the first reference point and the second reference point into position coordinates in the 26986 coordinate system;

The function ST_Length( ) is used to calculate the length of the curve between the first reference point and the second reference point in the 26986 coordinate system according to the converted position coordinates of the 26986 coordinate system.

In another embodiment of the present application, the device further includes:

The display module is used to display the location of the fault point on the GIS map of the GIS interface of the geographic information system.

In another embodiment of the present application, the device further includes:

The third acquisition module is used to acquire the information of the measurement starting point and the optical cable segment to be measured input by the user in the GIS interface;

The receiving module is used to receive the user's measurement instruction;

The response module is used to, in response to the measurement instruction, perform the step of obtaining the first lighting distance between the measurement starting point and the fault point, and obtain the information from the measurement starting point to each fusion splicing point on the fiber optic cable segment to be measured based on the information of the optical cable segment to be measured. Lighting distance.

An embodiment of the present application further provides an electronic device, as shown in FIG. 9 , including a processor 901 , a communication interface 902 , a memory 903 and a communication bus 904 , wherein the processor 901 , the communication interface 902 , and the memory 903 pass through the communication bus 904 complete communication with each other,

a memory 903 for storing computer programs;

The processor 901 is configured to implement the method steps in the foregoing method embodiments when executing the program stored in the memory 903 .

The communication bus mentioned in the above electronic device may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus or the like. The communication bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

The communication interface is used for communication between the above electronic device and other devices.

The memory may include random access memory (Random Access Memory, RAM), and may also include non-volatile memory (Non-Volatile Memory, NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

The above-mentioned processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (Digital SignalProcessor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

In another embodiment provided by the present application, a computer-readable storage medium is also provided, and a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, any one of the above-mentioned fault points of the optical fiber cable is realized The steps of the positioning method.

In yet another embodiment provided by the present application, there is also provided a computer program product containing instructions, which, when run on a computer, cause the computer to execute the steps of any method for locating a fault point of an optical cable in the above-mentioned embodiments.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, Solid State Disk (SSD)), among others.

It should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Each embodiment in this specification is described in a related manner, and the same and similar parts between the various embodiments may be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the apparatus embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and reference may be made to some descriptions of the method embodiments for related parts.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application are included in the protection scope of this application.

Claims (14)

1. A method for locating fault points of an optical cable, comprising: Obtain the first lighting distance between the measurement starting point and the fault point, and the first lighting distance is the distance between the measurement starting point and the fault point obtained by transmitting an optical signal to the optical cable section to be measured at the measurement starting point. lighting distance; A first reference point and a second reference point are determined based on the first lighting distance and the lighting distance from the measurement starting point to each fusion point on the cable segment to be measured, and the first reference point is the The welding point closest to the fault point on one side of the fault point, and the second reference point is the welding point closest to the fault point on the other side of the fault point; obtaining the position of the optical fiber cable marker between the first reference point and the second reference point; The position of the fault point is determined based on the first lighting distance and the position of the optical fiber cable marking pile between the first reference point and the second reference point. 2 . The method according to claim 1 , wherein the first reference point is determined based on the first lighting distance and the lighting distance from the measurement starting point to each welding point on the optical cable segment to be measured. 3 . and a second fiducial including: Determine the target fusion point closest to the fault point based on the first lighting distance and the lighting distance from the measurement starting point to each fusion point on the cable segment to be measured; If the second lighting distance from the measurement starting point to the target welding point is less than the first lighting distance, then the first reference point is determined as the target welding point, and the second reference point is at In the direction from the measurement starting point to the target fusion point, the next fusion point of the target fusion point; If the second lighting distance is greater than the first lighting distance, the second reference point is the target welding point, and the first reference point is the direction from the measurement starting point to the target welding point , the previous fusion point of the target fusion point. 3. The method according to claim 2, characterized in that, based on the first lighting distance and the lighting distance from the measurement starting point to each welding point on the optical cable segment to be measured, determine the fault with the fault. The point is closest to the target fusion point, including: Subtract the lighting distance from the measurement starting point to each fusion point on the optical cable segment to be measured from the first lighting distance, and take the absolute value of each difference to obtain the difference between each fusion point and the fault point. the distance; The minimum value of the distance between each welding point and the fault point is determined, and the target welding point closest to the fault point is obtained. 4. The method according to claim 2, wherein the determination of the The location of the fault point, including: The location of the failure point is calculated according to the following expression: Bpgeometry=ST_LineInterpolatePoint(geometryBM,(BP-BMg1)/(ST_Length(sd_st_transform(geometryBM,26986)))); Among them, geometryBM=st_makeline(geometry[g1, g2...gn-1, gn]); geometryBM is the position information of the curve between the first reference point and the second reference point; The st_makeline() function is used to generate lines from points; g1 is the GIS information corresponding to the latitude and longitude of the first reference point, gn is the GIS information corresponding to the latitude and longitude of the second reference point, and g2...gn-1 sequentially represent the position of the optical cable identification pile in the direction from the first reference point to the second reference point. GIS information corresponding to latitude and longitude; BP is the first lighting distance; BMg1 is the lighting distance from the test starting point to the first reference point; The function sd_st_transform(, 26986) is used to convert the position information of the curve between the first reference point and the second reference point into position coordinates in the 26986 coordinate system; The function ST_Length( ) is used to calculate the length of the curve between the first reference point and the second reference point in the 26986 coordinate system according to the converted position coordinates of the 26986 coordinate system. 5. The method according to any one of claims 1-4, characterized in that, based on the first lighting distance, the position of the optical fiber cable marker between the first reference point and the second reference point , after determining the location of the fault point, the method further includes: The location of the fault point is displayed on the GIS map of the GIS interface of the geographic information system. 6. The method according to claim 5, characterized in that, before acquiring the first lighting distance between the measurement starting point and the fault point, the method further comprises: Obtain the information of the measurement starting point and the optical cable segment to be measured input by the user in the GIS interface; Receive user's measurement instructions; In response to the measurement instruction, the step of obtaining the first lighting distance between the starting point of measurement and the fault point is performed, and based on the information of the optical cable segment to be measured, the starting point of measurement is obtained to the optical cable segment to be measured. The lighting distance of each welding point. 7. An optical cable fault point locating device, characterized in that, comprising: The first acquisition module is used to acquire the first lighting distance between the measurement starting point and the fault point, and the first lighting distance is the measurement obtained by transmitting an optical signal to the optical cable section to be measured at the measurement starting point The lighting distance between the starting point and the fault point; The first determination module is used to determine the first reference point and the second reference point based on the first lighting distance and the lighting distance from the measurement starting point to each fusion point on the optical cable segment to be measured. The first reference point is the welding point closest to the fault point on one side of the fault point, and the second reference point is the welding point closest to the fault point on the other side of the fault point; a second acquisition module, configured to acquire the position of the optical cable marking pile between the first reference point and the second reference point; The second determining module is configured to determine the position of the fault point based on the first lighting distance and the position of the optical cable marking pile between the first reference point and the second reference point. 8. The device according to claim 7, wherein the first determining module is specifically configured to: Determine the target fusion point closest to the fault point based on the first lighting distance and the lighting distance from the measurement starting point to each fusion point on the cable segment to be measured; If the second lighting distance from the measurement starting point to the target welding point is less than the first lighting distance, then the first reference point is determined as the target welding point, and the second reference point is at In the direction from the measurement starting point to the target fusion point, the next fusion point of the target fusion point; If the second lighting distance is greater than the first lighting distance, the second reference point is the target welding point, and the first reference point is the direction from the measurement starting point to the target welding point , the previous fusion point of the target fusion point. 9. The apparatus according to claim 8, wherein the first determining module is specifically configured to: Subtract the lighting distance from the measurement starting point to each fusion point on the optical cable segment to be measured from the first lighting distance, and take the absolute value of each difference to obtain the difference between each fusion point and the fault point. the distance; The minimum value of the distance between each welding point and the fault point is determined, and the target welding point closest to the fault point is obtained. 10. The apparatus according to claim 8, wherein the second determining module is specifically configured to: The location of the failure point is calculated according to the following expression: Bpgeometry=ST_LineInterpolatePoint(geometryBM,(BP-BMg1)/(ST_Length(sd_st_transform(geometryBM,26986)))); Among them, geometryBM=st_makeline(geometry[g1, g2...gn-1, gn]); geometryBM is the position information of the curve between the first reference point and the second reference point; The st_makeline() function is used to generate lines from points; g1 is the GIS information corresponding to the latitude and longitude of the first reference point, gn is the GIS information corresponding to the latitude and longitude of the second reference point, and g2...gn-1 sequentially represent the position of the optical cable identification pile in the direction from the first reference point to the second reference point. GIS information corresponding to latitude and longitude; BP is the first lighting distance; BMg1 is the lighting distance from the test starting point to the first reference point; The function sd_st_transform(, 26986) is used to convert the position information of the curve between the first reference point and the second reference point into position coordinates in the 26986 coordinate system; The function ST_Length( ) is used to calculate the length of the curve between the first reference point and the second reference point in the 26986 coordinate system according to the converted position coordinates of the 26986 coordinate system. 11. The device according to any one of claims 7-10, wherein the device further comprises: The display module is used for displaying the location of the fault point on the GIS map of the GIS interface of the geographic information system. 12. The apparatus of claim 11, wherein the apparatus further comprises: A third acquisition module, configured to acquire the information of the measurement starting point and the optical cable segment to be measured input by the user on the GIS interface; The receiving module is used to receive the user's measurement instruction; The response module is configured to, in response to the measurement instruction, execute the step of obtaining the first lighting distance from the measurement starting point to the fault point, and obtain the measurement starting point to the The lighting distance of each splicing point on the fiber optic cable segment to be tested. 13. An electronic device, characterized in that it comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; memory for storing computer programs; The processor is configured to implement the method steps described in any one of claims 1-6 when executing the program stored in the memory. 14. A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the method steps of any one of claims 1-6 are implemented .

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