阅读说明：本技术 一种光纤线路的应变定位方法、装置、设备及介质 (Strain positioning method, device, equipment and medium for optical fiber circuit ) 是由 陈丽光 刘新展 蓝映彬 廖子熙 文波 保志荣 罗汉辉 黄柱辉 杨柳辉 魏志雄 陈 于 2021-08-17 设计创作，主要内容包括：本申请实施例公开了一种光纤线路的应变定位方法、装置、设备及介质。其中,该方法包括：根据背向散射光的光功率和基础功率,确定背向散射光的干涉功率；基于干涉功率计算光纤线路的折射率变化值；根据折射率变化值和光纤线路的地理信息,确定光纤线路的应变位置信息。本申请实施例提供的技术方案,可以实现对光纤线路的应变情况进行精确定位。(The embodiment of the application discloses a strain positioning method, a strain positioning device, strain positioning equipment and a strain positioning medium for an optical fiber circuit. Wherein, the method comprises the following steps: determining the interference power of the back scattering light according to the optical power and the basic power of the back scattering light; calculating a refractive index change value of the optical fiber circuit based on the interference power; and determining the strain position information of the optical fiber circuit according to the refractive index change value and the geographic information of the optical fiber circuit. According to the technical scheme provided by the embodiment of the application, the strain condition of the optical fiber line can be accurately positioned.)

1. A method of strain location of an optical fiber line, the method comprising:

determining the interference power of the back scattering light according to the optical power and the basic power of the back scattering light;

calculating a refractive index change value of the optical fiber line based on the interference power;

and determining the strain position information of the optical fiber circuit according to the refractive index change value and the geographic information of the optical fiber circuit.

2. The method for locating the strain of the optical fiber circuit according to claim 1, wherein the determining the strain position information of the optical fiber circuit according to the refractive index variation value and the geographic information of the optical fiber circuit comprises:

calculating the length of the optical fiber circuit according to the refractive index change value;

and determining the strain position information of the optical fiber circuit according to the length and the geographic information of the optical fiber circuit.

3. The method of claim 1, wherein before determining the interference power of the backscattered light from the optical power of the backscattered light and the base power, the method comprises:

acquiring a Brillouin spectrum, amplitude and return time of backward scattering light in the optical fiber circuit;

determining the optical power of the backscattered light according to the Brillouin spectrum of the backscattered light;

and determining the basic power of the back scattering light according to the amplitude and the return time of the back scattering light.

4. The method for locating strain of an optical fiber line according to claim 1, further comprising, before determining strain location information of the optical fiber line according to the refractive index variation value and the geographical information of the optical fiber line:

and generating the geographic information of the optical fiber circuit by marking and identifying the optical fiber circuit.

5. The method for locating the strain of the optical fiber circuit according to claim 1, wherein the interference power is processed by the following formula to obtain the refractive index variation value of the optical fiber circuit:

wherein, P is the interference power of the back scattering light; t is time; n is the number of scattering points, and the backscattered light comprises at least two scattering points;is the phase difference between the ith and jth scattering points; a is_iAnd a_jThe amplitudes of the ith scattering point and the jth scattering point respectively; a is the attenuation coefficient of the optical fiber circuit; c is the speed of light; tau is_iAnd τ_jRespectively returning the ith scattering point and the jth scattering point to the injection end; n is_f' is a refractive index change value of the optical fiber circuit; w is the pulse width of the scattering spot.

6. The method for locating the strain of the optical fiber circuit according to claim 2, wherein the length of the optical fiber circuit is obtained by processing the refractive index variation value according to the following formula:

wherein L is the length of the optical fiber line; t is the return time of the back scattering light to the injection end; c is the speed of light; n is_fIs the refractive index change value of the optical fiber circuit.

7. The method according to claim 1, wherein the light source in the optical fiber line is a narrow-band pulse light source.

8. A strain locator for an optical fiber line, the locator comprising:

the power determination module is used for determining the interference power of the back scattering light according to the optical power and the basic power of the back scattering light;

the refractive index determining module is used for calculating a refractive index change value of the optical fiber circuit based on the interference power;

and the strain positioning module is used for determining the strain position information of the optical fiber circuit according to the refractive index change value and the geographic information of the optical fiber circuit.

9. An electronic device, characterized in that the electronic device comprises:

one or more processors;

storage means for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement the method of strain location of an optical fiber line of any of claims 1-7.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out a method for strain localization of an optical fiber line according to any one of claims 1 to 7.

Technical Field

The embodiment of the application relates to the technical field of optical fiber measurement, in particular to a strain positioning method, device, equipment and medium for an optical fiber circuit.

Background

With the development of power systems, the application of power optical cables (such as optical fiber composite overhead lines, referred to as optical fiber lines for short) is more and more widespread. The optical fiber circuit is erected in the air and is easy to be damaged by external force (such as wind blowing, ice coating, mountain fire, lightning stroke and the like) to cause faults. Therefore, it is necessary to locate the strain condition of the fiber optic line.

In the prior art, J.C.Juarez et al are based on phase-sensitive optical time domain reflectometry (Time-Domain Reflectometry，) The technology uses ultra-narrow line width and line width below KHz of low frequency shift laser as light source to detect and locate the strain condition of optical fiber line, although 12km transmission can be realizedThe optical sensing fiber has better spatial resolution. However, this method does not allow for accurate positioning of the strain profile of the fiber optic line. Therefore, it is necessary to design a strain positioning method for an optical fiber line, which can meet the requirement of accurately positioning the strain condition of the optical fiber line.

Disclosure of Invention

The embodiment of the application provides a strain positioning method, a strain positioning device, strain positioning equipment and a strain positioning medium for an optical fiber circuit, so that the strain condition of the optical fiber circuit can be accurately positioned.

In a first aspect, an embodiment of the present application provides a method for strain localization of an optical fiber line, where the method includes:

determining the interference power of the back scattering light according to the optical power and the basic power of the back scattering light;

calculating a refractive index change value of the optical fiber line based on the interference power;

and determining the strain position information of the optical fiber circuit according to the refractive index change value and the geographic information of the optical fiber circuit.

In a second aspect, embodiments of the present application provide a strain location device for an optical fiber line, the device including:

the power determination module is used for determining the interference power of the back scattering light according to the optical power and the basic power of the back scattering light;

the refractive index determining module is used for calculating a refractive index change value of the optical fiber circuit based on the interference power;

and the strain positioning module is used for determining the strain position information of the optical fiber circuit according to the refractive index change value and the geographic information of the optical fiber circuit.

In a third aspect, an embodiment of the present application provides an electronic device, including:

one or more processors;

storage means for storing one or more programs;

when executed by the one or more processors, cause the one or more processors to implement the method for strain location of an optical fiber line according to any of the embodiments of the present application.

In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, where the program, when executed by a processor, implements the method for strain location of an optical fiber line according to any embodiment of the present application.

The embodiment of the application provides a strain positioning method, a strain positioning device, strain positioning equipment and a strain positioning medium for an optical fiber circuit, wherein the interference power of back scattering light is determined according to the optical power and the basic power of the back scattering light; calculating a refractive index change value of the optical fiber circuit based on the interference power; and determining the strain position information of the optical fiber circuit according to the refractive index change value and the geographic information of the optical fiber circuit. The strain situation of the optical fiber circuit can be accurately positioned.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present application, nor do they limit the scope of the present application. Other features of the present application will become apparent from the following description.

Drawings

The drawings are included to provide a better understanding of the present solution and are not intended to limit the present application. Wherein:

fig. 1 is a first flowchart of a strain positioning method for an optical fiber circuit according to an embodiment of the present disclosure;

fig. 2 is a second flowchart of a strain positioning method for an optical fiber circuit according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a strain positioning device for an optical fiber circuit according to an embodiment of the present disclosure;

fig. 4 is a block diagram of an electronic device for implementing a method for strain location of a fiber optic line according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Example one

Fig. 1 is a first flowchart of a method for positioning strain of an optical fiber circuit according to an embodiment of the present disclosure, which is applicable to positioning a strain condition of an optical fiber circuit. The method for strain location of an optical fiber circuit provided by this embodiment may be performed by the strain location apparatus of an optical fiber circuit provided by this embodiment, which may be implemented by software and/or hardware and integrated in an electronic device executing this method.

Referring to fig. 1, the method of the present embodiment includes, but is not limited to, the following steps:

and S110, determining the interference power of the back scattering light according to the optical power and the basic power of the back scattering light.

Wherein, the back scattering light comprises at least two scattering points; the optical power of the backscattered light refers to the power generated by the backscattered light in unit time, and comprises a basic power and an interference power; the base power of the backscattered light represents the sum of the base powers of at least two scattering points; the interference power of the backscattered light represents the interference power between at least two scattering points due to coherence effects.

In the embodiment of the present application, a light source is injected into an optical fiber line by using a coupler, when the light source propagates through the optical fiber line, due to actual non-uniformity (such as fiber joint point, fiber fracture point, or fiber strain) in the optical fiber line, a brillouin scattering phenomenon occurs at each point along the optical fiber line, and a part of scattered light returns to an injection end in a direction opposite to the propagation direction, that is, backscattered light. The light source in the optical fiber line may be any kind of pulse light, and preferably, may be a narrow-band pulse light source.

In the embodiment of the present application, a brillouin spectrum of backscattered light along an optical fiber is obtained at an injection end by a photodetector, and then optical power of the backscattered light is extracted from the brillouin spectrum of the backscattered light.

In the embodiment of the application, the basic power of the back scattering light is obtained according to the amplitude of each scattering point and the return time of each scattering point to the injection end. Then, the basic power of the back scattering light is subtracted from the optical power of the back scattering light to obtain the interference power of the back scattering light.

And S120, calculating a refractive index change value of the optical fiber circuit based on the interference power.

In the embodiment of the present application, after the interference power of the backscattered light is determined in step S110, the basic information of each scattering point is first obtained, and then the refractive index variation value of the optical fiber line is calculated by using a preset formula according to the basic information of each scattering point and the interference power of the backscattered light. The basic information comprises phase differences among all scattering points, amplitudes of all scattering points and the return time of all scattering points to the injection end.

Preferably, the light source in the optical fiber line may be a narrow-band pulse light source. If the light source injected into the optical fiber line is a narrow-band pulse light source, even a slight change in the refractive index of the optical fiber can be enhanced by the coherence effect between the pulse lights, i.e., the larger the value of the interference power of the backscattered light.

S130, determining strain position information of the optical fiber circuit according to the refractive index change value and the geographic information of the optical fiber circuit.

The strain refers to a change of the optical fiber line caused by a temperature change and/or an external force change.

In the embodiment of the application, the marking identification is performed on the optical fiber line, so that the geographic information of the optical fiber line is obtained. The specific process of determining the geographic information of the optical fiber line will be explained in the following embodiments. After the refractive index variation value of the optical fiber line is determined in step S110, the strain position information of the optical fiber line is determined according to the refractive index variation value and the geographical information of the optical fiber line.

Optionally, the specific process of determining the strain location information of the optical fiber line according to the refractive index change value and the geographic information of the optical fiber line in this step may be implemented by the following two sub-steps:

and S1301, calculating the length of the optical fiber line according to the refractive index change value.

The length of the optical fiber line refers to the length from the injection end of the optical fiber line to the strain point.

In the embodiment of the present application, the length of the optical fiber line is obtained by processing the refractive index change value according to the following formula (1):

wherein, L is the length of the optical fiber circuit; t is the return time of the back scattering light to the injection end; c is the speed of light; n is_fIs the refractive index change value of the optical fiber circuit.

The time of the back scattering light returning to the injection end can be calculated according to the time of the back scattering point returning to the injection end, and the specific calculation mode is not specifically limited in the embodiment of the present application.

S1302, according to the length and the geographic information of the optical fiber line, strain position information of the optical fiber line is determined.

In this application embodiment, can search for the positional information of scattering point through unmanned aerial vehicle, combine the length of fiber circuit again to can determine the strain positional information of fiber circuit. Wherein, the unmanned aerial vehicle that this application adopted is configured with thermal sensor and positioning system.

According to the technical scheme provided by the embodiment, the interference power of the back scattering light is determined according to the optical power and the basic power of the back scattering light; calculating a refractive index change value of the optical fiber circuit based on the interference power; and determining the strain position information of the optical fiber circuit according to the refractive index change value and the geographic information of the optical fiber circuit. The method comprises the steps of determining a refractive index change value of an optical fiber circuit through interference power of back scattering light; calculating the length of the optical fiber circuit through the refractive index change value; and finally, the strain position information of the optical fiber line can be determined by combining the length of the optical fiber line and the geographic information of the optical fiber line, so that the problem that the strain condition of the optical fiber line cannot be accurately positioned in the prior art is solved. By implementing the technical scheme of the application, the strain condition of the optical fiber circuit can be accurately positioned.

Example two

Fig. 2 is a second flowchart of a method for strain location of an optical fiber circuit according to an embodiment of the present disclosure. The embodiment of the application is optimized on the basis of the embodiment, and specifically optimized as follows: a detailed explanation of the determination of the optical power and the base power of the backscattered light and the determination of the geographical information of the fiber line is added.

Referring to fig. 2, the method of the present embodiment includes, but is not limited to, the following steps:

and S210, acquiring a Brillouin spectrum, amplitude and return time of the back scattering light in the optical fiber line.

In the embodiment of the application, pulsed light is injected into an optical fiber line by using a coupler, a brillouin scattering phenomenon occurs when the pulsed light propagates in the optical fiber line, and a brillouin spectrum of backward scattering light along the optical fiber is obtained at an injection end by using a photoelectric detector. And acquiring the amplitude and the round trip time of each scattering point in the backscattered light through a photoelectric detector.

And S220, determining the optical power of the back scattering light according to the Brillouin spectrum of the back scattering light.

In the embodiment of the present application, the brillouin spectrum of the backscattered light is a two-dimensional change curve with respect to the wavelength and the optical power of the backscattered light. From this two-dimensional change curve, the optical power of the backscattered light is extracted.

And S230, determining the basic power of the back scattering light according to the amplitude and the return time of the back scattering light.

In the embodiment of the present application, the amplitude and the round trip time of the backscattered light are processed by the following formula (2), so as to obtain the basic power of the backscattered light:

wherein, P₁Is the base power of the backscattered light; t is time; n is the number of scattering points, and the back scattering light comprises at least two scattering points; a is_iIs the amplitude of the ith scattering point; alpha is the attenuation coefficient of the optical fiber circuit; c is the speed of light; tau is_iThe return time of the ith scattering point to the injection end is taken as the return time; n is_fIs the refractive index of the fiber optic line; w is the pulse width of the scattering spot.

It should be noted that the base power of the backscattered light indicates the sum of the powers of at least two scattering points, and does not change with the strain (vibration change or temperature change) along the optical fiber, nor with the frequency of the pulsed light.

S240, determining the interference power of the back scattering light according to the optical power and the basic power of the back scattering light.

In the embodiment of the application, the optical power of the backscattered light is obtained by adding the basic power of the backscattered light and the interference power of the backscattered light. Therefore, after the optical power of the backscattered light and the base power of the backscattered light are determined through the above steps, the two are subtracted from each other, and the interference power of the backscattered light can be obtained.

And S250, calculating the refractive index change value of the optical fiber circuit based on the interference power.

In the embodiment of the present application, after the interference power of the backscattered light is determined in step S240, the basic information of each scattering point is first obtained, and then the refractive index change value of the optical fiber line is calculated according to the basic information of each scattering point and the interference power of the backscattered light. The basic information comprises phase differences among all scattering points, amplitudes of all scattering points and the return time of all scattering points to the injection end.

Specifically, the refractive index variation value of the optical fiber line is obtained by processing the interference power of the optical fiber line according to the following formula (3):

wherein, P is the interference power of the back scattering light; t is time; n is the number of scattering points, and the backscattered light comprises at least two scattering points;is the phase difference between the ith and jth scattering points; a is_iAnd a_jThe amplitudes of the ith scattering point and the jth scattering point respectively; alpha is the attenuation coefficient of the optical fiber circuit; c is the speed of light; tau is_iAnd τ_jRespectively returning the ith scattering point and the jth scattering point to the injection end; n'_fIs the refractive index variation value of the optical fiber circuit; w is the pulse width of the scattering spot.

Wherein, the pulse width in the formula (3) satisfies the following formula (4):

and S260, generating the geographic information of the optical fiber circuit by marking and identifying the optical fiber circuit.

In the embodiment of the application, a fiber circuit is marked and identified by a Radio Frequency Identification (RFID) technology, a vector diagram of a circuit fiber is determined, and finally geographical information of the fiber circuit is generated. Specifically, the method comprises the following steps: firstly, marking an optical fiber circuit by using an RFID label, then identifying by using an RFID reader-writer to obtain identification information of the circuit optical fiber, and sending the identification information to a geographic information system by using a WebService technology; secondly, acquiring a raster image of the optical fiber line by an unmanned aerial vehicle, and converting the raster image into a vector diagram; and thirdly, combining a geographic information system with the vector diagram to obtain the geographic information of the line optical fiber.

Optionally, the specific process of converting the raster image into the vector image is as follows: three points which are not on the same straight line are selected on a raster image, and then the three points are accurately positioned in a coordinate mode. According to the theorem that three points which are not on the same straight line determine a plane, the accurate coordinate information of any point on the raster image can be obtained, and therefore the vector diagram corresponding to the raster image is obtained, wherein the origin of coordinates of the vector diagram can be selected at will.

S270, determining strain position information of the optical fiber circuit according to the refractive index change value and the geographic information of the optical fiber circuit.

In the embodiment of the present application, after the refractive index variation value of the optical fiber line is determined in step S250, the length of the optical fiber line is calculated according to the refractive index variation value. Can search for the positional information of scattering point through unmanned aerial vehicle to combine the length of fiber circuit, thereby can determine the position information that meets an emergency of fiber circuit. Wherein, the unmanned aerial vehicle that this application adopted is configured with thermal sensor and positioning system. The Positioning System may be a Global Positioning System (GPS), or other Positioning systems.

According to the technical scheme provided by the embodiment, the Brillouin spectrum, the amplitude and the round trip time of the back scattering light in the optical fiber circuit are firstly obtained; determining the optical power of the back scattering light according to the Brillouin spectrum of the back scattering light, and determining the basic power of the back scattering light according to the amplitude and the round trip time of the back scattering light; then determining the interference power of the back scattering light according to the optical power and the basic power of the back scattering light; then calculating the refractive index change value of the optical fiber circuit based on the interference power; generating geographic information of the optical fiber circuit by marking and identifying the optical fiber circuit; and finally, determining the strain position information of the optical fiber circuit according to the refractive index change value and the geographic information of the optical fiber circuit. The method comprises the steps of determining a refractive index change value of an optical fiber circuit through interference power of back scattering light; calculating the length of the optical fiber circuit through the refractive index change value; finally, the length of the optical fiber circuit and the geographic information of the optical fiber circuit are combined, so that the strain position information of the optical fiber circuit can be determined, the problem that the strain condition of the optical fiber circuit cannot be accurately positioned in the prior art is solved, and the requirement for accurately positioning the strain condition of the optical fiber circuit can be met.

EXAMPLE III

Fig. 3 is a schematic structural diagram of a strain positioning apparatus for an optical fiber circuit according to an embodiment of the present disclosure, and as shown in fig. 3, the apparatus 300 may include:

a power determining module 310, configured to determine an interference power of the backscattered light according to an optical power of the backscattered light and a base power.

And a refractive index determination module 320 for calculating a refractive index change value of the optical fiber line based on the interference power.

And the strain positioning module 330 is configured to determine strain position information of the optical fiber line according to the refractive index change value and the geographic information of the optical fiber line.

Further, the strain positioning module 330 is specifically configured to: calculating the length of the optical fiber circuit according to the refractive index change value; and determining the strain position information of the optical fiber circuit according to the length and the geographic information of the optical fiber circuit.

Further, the strain positioning device for an optical fiber line may further include: a power calculation module;

the power calculation module is used for acquiring a Brillouin spectrum, amplitude and return time of the backscattered light in the optical fiber line before determining the interference power of the backscattered light according to the optical power and the basic power of the backscattered light; determining the optical power of the backscattered light according to the Brillouin spectrum of the backscattered light; and determining the basic power of the back scattering light according to the amplitude and the return time of the back scattering light.

Further, the strain positioning device for an optical fiber line may further include: an information determination module;

the information determining module is configured to generate the geographical information of the optical fiber line by performing mark identification on the optical fiber line before determining the strain position information of the optical fiber line according to the refractive index change value and the geographical information of the optical fiber line.

Optionally, the interference power is processed by the following formula to obtain a refractive index variation value of the optical fiber line:

wherein, P is the interference power of the back scattering light; t is time; n is the number of scattering points, and the backscattered light comprises at least two scattering points;is the phase difference between the ith and jth scattering points; a is_iAnd a_jThe amplitudes of the ith scattering point and the jth scattering point respectively; a is the attenuation coefficient of the optical fiber circuit; c is the speed of light; tau is_iAnd τ_jRespectively returning the ith scattering point and the jth scattering point to the injection end; n'_fThe change value of the refractive index of the optical fiber circuit is obtained; w is the pulse width of the scattering spot.

Optionally, the length of the optical fiber line is obtained by processing the refractive index change value according to the following formula:

wherein L is the length of the optical fiber line; t is the return time of the back scattering light to the injection end; c is the speed of light; n is_fIs the refractive index change value of the optical fiber circuit.

Optionally, the light source in the optical fiber line is a narrow-band pulse light source.

The strain positioning device for the optical fiber circuit provided by the embodiment can be applied to the strain positioning method for the optical fiber circuit provided by any embodiment, and has corresponding functions and beneficial effects.

Example four

Fig. 4 is a block diagram of an electronic device for implementing a method for strain location of a fiber optic line according to an embodiment of the present application, and fig. 4 shows a block diagram of an exemplary electronic device suitable for implementing an embodiment of the present application. The electronic device shown in fig. 4 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application. The electronic device can be a smart phone, a tablet computer, a notebook computer, a vehicle-mounted terminal, a wearable device and the like.

As shown in fig. 4, electronic device 400 is embodied in the form of a general purpose computing device. The components of electronic device 400 may include, but are not limited to: one or more processors or processing units 416, a memory 428, and a bus 418 that couples the various system components including the memory 428 and the processing unit 416.

Bus 418 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, micro-channel architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.

Electronic device 400 typically includes a variety of computer system readable media. Such media may be any available media that is accessible by electronic device 400 and includes both volatile and nonvolatile media, removable and non-removable media.

Memory 428 can include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)430 and/or cache memory 432. The electronic device 400 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 434 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 4, commonly referred to as a "hard drive"). Although not shown in FIG. 4, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 418 by one or more data media interfaces. Memory 428 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the application.

A program/utility 440 having a set (at least one) of program modules 442 may be stored, for instance, in memory 428, such program modules 442 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 442 generally perform the functions and/or methodologies of embodiments described herein.

The electronic device 400 may also communicate with one or more external devices 414 (e.g., keyboard, pointing device, display 424, etc.), with one or more devices that enable a user to interact with the electronic device 400, and/or with any devices (e.g., network card, modem, etc.) that enable the electronic device 400 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interfaces 422. Also, electronic device 400 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet) through network adapter 420. As shown in FIG. 4, network adapter 420 communicates with the other modules of electronic device 400 over bus 418. It should be appreciated that although not shown in FIG. 4, other hardware and/or software modules may be used in conjunction with electronic device 400, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.

The processing unit 416 executes programs stored in the memory 428 to perform various functional applications and data processing, such as implementing the strain location method for the optical fiber line provided by any embodiment of the present application.

EXAMPLE five

The fifth embodiment of the present application further provides a computer-readable storage medium, on which a computer program (or referred to as computer-executable instructions) is stored, where the program, when executed by a processor, can be used to perform the method for strain location of an optical fiber circuit provided in any of the above embodiments of the present application.

The computer storage media of the embodiments of the present application may take any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for embodiments of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the embodiments of the present application have been described in more detail through the above embodiments, the embodiments of the present application are not limited to the above embodiments, and many other equivalent embodiments may be included without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.