A method and system for optical fibre perimeter vibration monitoring

Abstract

The application discloses a kind of optical fiber perimeter vibration monitoring method and system, method includes: based on the first average value of the signal value of target distance section of target optical fiber in first time selection rule first selection rule;Based on the second average value of the signal value of target distance section of target optical fiber in second time selection rule second selection rule;According to the difference between first average value and second average value determines the first vibration amount of target optical fiber;Vibration signal is carried out noise reduction processing, obtains first vibration signal, and first vibration signal is input into preset vibration monitoring model, and vibration monitoring model outputs second vibration amount;First vibration amount is corrected using preset correction rule, and the final vibration result of target optical fiber is obtained.The first selection rule and the second selection rule are opposite to each other in a manner, so that the selected signal can cover the entire optical fiber as much as possible, so as to facilitate the vibration monitoring of light at different times.

Description

Technical Field

[0001] This invention belongs to the field of optical fiber detection technology, and in particular relates to a method and system for monitoring optical fiber perimeter vibration. Background Technology

[0002] Fiber optic sensing, which rapidly developed in the 1970s alongside the advancement of fiber optic communication technology, is a novel sensing technology that uses optical signals as the carrier and optical fibers as the medium to sense and transmit external vibration signals. In practical applications of fiber optic vibration sensing (DAS), data acquisition and retrieval are prerequisites for processing. Due to the dense distribution of acquisition points and the massive amount of data collected, data corruption and errors are prone to occur over time. Currently, vibration monitoring methods for fiber optics primarily rely on human observation, but these methods suffer from low efficiency and the inability to provide timely forecasts. Summary of the Invention

[0003] This invention provides a method and system for monitoring fiber optic perimeter vibration, which solves the technical problems of low efficiency and inability to provide timely forecasts due to the reliance on human observation and monitoring.

[0004] In a first aspect, the present invention provides a method for monitoring fiber optic perimeter vibration, comprising:

[0005] When an optical fiber electrical signal is received, the signal values ​​of the target optical fiber at different positions at the same time are acquired, wherein the optical fiber electrical signal is obtained by converting the optical signal reflected by the optical fiber;

[0006] Based on a preset first selection rule, the first average value of the signal value of the target optical fiber in the target distance segment is selected at the first moment;

[0007] Based on a preset second selection rule, the second average value of the signal value of the target optical fiber in the target distance segment is selected at the second time.

[0008] The first vibration magnitude of the target optical fiber is determined based on the difference between the first average value and the second average value.

[0009] The vibration signal of the environment where the optical fiber is located is acquired, the vibration signal is denoised to obtain a first vibration signal, and the first vibration signal is input into a preset vibration monitoring model, and the vibration monitoring model outputs a second vibration quantity;

[0010] Based on the second vibration amount, the first vibration amount is corrected using a preset correction rule to obtain the final vibration result of the target optical fiber.

[0011] In a second aspect, the present invention provides an optical fiber perimeter vibration monitoring system, comprising:

[0012] The acquisition module is configured to acquire the signal values ​​of the target optical fiber at different positions at the same time when an optical fiber electrical signal is received, wherein the optical fiber electrical signal is obtained by converting the optical signal reflected by the optical fiber;

[0013] The first selection module is configured to select the first average value of the signal value of the target optical fiber in the target distance segment at a first moment based on a preset first selection rule.

[0014] The second selection module is configured to select the second average value of the signal value of the target optical fiber in the target distance segment at a second time based on a preset second selection rule.

[0015] The determination module is configured to determine the first vibration amount of the target optical fiber based on the difference between the first average value and the second average value;

[0016] The output module is configured to acquire the vibration signal of the environment where the optical fiber is located, perform noise reduction processing on the vibration signal to obtain a first vibration signal, and input the first vibration signal into a preset vibration monitoring model, wherein the vibration monitoring model outputs a second vibration quantity;

[0017] The correction module is configured to correct the first vibration quantity according to the second vibration quantity using a preset correction rule, so as to obtain the final vibration result of the target optical fiber.

[0018] Thirdly, an electronic device is provided, comprising: at least one processor, and a memory communicatively connected to the at least one processor, wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the steps of the fiber optic perimeter vibration monitoring method according to any embodiment of the present invention.

[0019] Fourthly, the present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein when the program instructions are executed by a processor, the processor performs the steps of the fiber optic perimeter vibration monitoring method according to any embodiment of the present invention.

[0020] The fiber optic perimeter vibration monitoring method and system of this application selects a first average value of the signal value of the target fiber at a target distance segment at a first time based on a preset first selection rule; selects a second average value of the signal value of the target fiber at a target distance segment at a second time based on a preset second selection rule; determines a first vibration quantity of the target fiber based on the difference between the first average value and the second average value. By using the opposite of the first and second selection rules, the selected signal can cover the entire fiber as much as possible, thereby facilitating vibration monitoring of the light at different times and obtaining the environmental vibration quantity, i.e., the second vibration quantity, which enables more accurate calculation of the fiber vibration quantity. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A flowchart illustrating a fiber optic perimeter vibration monitoring method according to an embodiment of the present invention;

[0023] Figure 2 This is a structural block diagram of an optical fiber perimeter vibration monitoring system provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1 The diagram shows a flowchart of a fiber optic perimeter vibration monitoring method according to this application.

[0027] like Figure 1 As shown, the fiber optic perimeter vibration monitoring method specifically includes the following steps:

[0028] Step S101: When an optical fiber electrical signal is received, the signal values ​​of the target optical fiber at different positions at the same time are obtained, wherein the optical fiber electrical signal is obtained by converting the optical signal reflected by the optical fiber.

[0029] In this step, the optical fiber electrical signal is a digital electrical signal, wherein the digital electrical signal is obtained by converting an analog electrical signal, and the analog electrical signal is obtained by converting an optical signal reflected from the optical fiber.

[0030] Step S102: Based on a preset first selection rule, select the first average value of the signal value of the target optical fiber in the target distance segment at the first moment.

[0031] In this step, the target optical fiber is marked with location points, and the signal values ​​at each first target marked location point are sequentially acquired based on a preset first dynamic distance interval, wherein the preset first dynamic distance interval is a distance interval that increases sequentially according to the number of selections; the average value of the signal values ​​at each first target marked location point is calculated to obtain the first average value.

[0032] Step S103: Based on a preset second selection rule, select the second average value of the signal value of the target optical fiber in the target distance segment at the second time.

[0033] In this step, the target optical fiber is marked with location points, and the signal values ​​at each second target marked location point are sequentially acquired based on a preset first dynamic distance interval, wherein the preset first dynamic distance interval is a distance interval that decreases sequentially according to the number of selections; the average value of the signal values ​​at each second target marked location point is calculated to obtain a second average value.

[0034] Step S104: Determine the first vibration amount of the target optical fiber based on the difference between the first average value and the second average value.

[0035] Step S105: Obtain the vibration signal of the environment where the optical fiber is located, perform noise reduction processing on the vibration signal to obtain a first vibration signal, and input the first vibration signal into a preset vibration monitoring model, wherein the vibration monitoring model outputs a second vibration quantity.

[0036] In this step, the vibration signal of the environment in which the optical fiber is located is obtained, and the vibration signal is processed by wavelet denoising algorithm to obtain the first vibration signal.

[0037] It should be noted that the vibration monitoring model includes an input layer, a long short-term memory network layer, a fully connected layer, and an output layer; wherein, the output end of the input layer is connected to the input end of the long short-term memory network layer, the output end of the long short-term memory network layer is connected to the input end of the fully connected layer, and the output end of the fully connected layer is connected to the input end of the output layer.

[0038] Step S106: Based on the second vibration amount, the first vibration amount is corrected using a preset correction rule to obtain the final vibration result of the target optical fiber.

[0039] In this step, the difference between the first vibration amount and the second vibration amount is calculated, and the difference is taken as the final vibration result of the target optical fiber.

[0040] In summary, the method of this application selects a first average value of the signal value of the target optical fiber at a target distance segment at a first time based on a preset first selection rule; selects a second average value of the signal value of the target optical fiber at a second time based on a preset second selection rule; and determines a first vibration amount of the target optical fiber based on the difference between the first average value and the second average value. By using the opposite of the first and second selection rules, the selected signal can cover the entire optical fiber as much as possible, thereby facilitating vibration monitoring of the light at different times and obtaining the environmental vibration amount, i.e., the second vibration amount, which enables more accurate calculation of the optical fiber vibration amount.

[0041] Please see Figure 2 The diagram shows a structural block diagram of a fiber optic perimeter vibration monitoring system according to this application.

[0042] like Figure 2 As shown, the fiber optic perimeter vibration monitoring system 200 includes an acquisition module 210, a first selection module 220, a second selection module 230, a determination module 240, an output module 250, and a correction module 260.

[0043] The acquisition module 210 is configured to acquire signal values ​​of the target optical fiber at different positions at the same time when an optical fiber electrical signal is received, wherein the optical fiber electrical signal is obtained by converting the optical signal reflected by the optical fiber; the first selection module 220 is configured to select a first average value of the signal value of the target optical fiber at a target distance segment at a first time based on a preset first selection rule; the second selection module 230 is configured to select a second average value of the signal value of the target optical fiber at a target distance segment at a second time based on a preset second selection rule; the determination module 240 is configured to determine a first vibration amount of the target optical fiber based on the difference between the first average value and the second average value; the output module 250 is configured to acquire the vibration signal of the environment in which the optical fiber is located, perform noise reduction processing on the vibration signal to obtain a first vibration signal, and input the first vibration signal into a preset vibration monitoring model, wherein the vibration monitoring model outputs a second vibration amount; the correction module 260 is configured to correct the first vibration amount according to the second vibration amount using a preset correction rule to obtain the final vibration result of the target optical fiber.

[0044] It should be understood that Figure 2 The modules and references described in the document Figure 1 The steps described in the text correspond to those in the method described above. Therefore, the operations, features, and corresponding technical effects described above also apply to the method described in the text. Figure 2 The various modules in the document will not be described in detail here.

[0045] In other embodiments, the present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein when the program instructions are executed by a processor, the processor performs the fiber optic perimeter vibration monitoring method in any of the above method embodiments.

[0046] In one embodiment, the computer-readable storage medium of the present invention stores computer-executable instructions, which are configured as follows:

[0047] When an optical fiber electrical signal is received, the signal values ​​of the target optical fiber at different positions at the same time are acquired, wherein the optical fiber electrical signal is obtained by converting the optical signal reflected by the optical fiber;

[0048] Based on a preset first selection rule, the first average value of the signal value of the target optical fiber in the target distance segment is selected at the first moment;

[0049] Based on a preset second selection rule, the second average value of the signal value of the target optical fiber in the target distance segment is selected at the second time.

[0050] The first vibration magnitude of the target optical fiber is determined based on the difference between the first average value and the second average value.

[0051] The vibration signal of the environment where the optical fiber is located is acquired, the vibration signal is denoised to obtain a first vibration signal, and the first vibration signal is input into a preset vibration monitoring model, and the vibration monitoring model outputs a second vibration quantity;

[0052] Based on the second vibration amount, the first vibration amount is corrected using a preset correction rule to obtain the final vibration result of the target optical fiber.

[0053] Computer-readable storage media may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required for at least one function; the data storage area may store data created based on the use of the fiber optic perimeter vibration monitoring system, etc. Furthermore, the computer-readable storage medium may include high-speed random access memory, and may also include memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, the computer-readable storage medium may optionally include memory remotely disposed relative to a processor, which can be connected to the fiber optic perimeter vibration monitoring system via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0054] Figure 3 This is a schematic diagram of the structure of the electronic device provided in the embodiment of the present invention, such as... Figure 3As shown, the device includes a processor 310 and a memory 320. The electronic device may also include an input device 330 and an output device 340. The processor 310, memory 320, input device 330, and output device 340 can be connected via a bus or other means. Figure 3 Taking a bus connection as an example, the memory 320 is the computer-readable storage medium described above. The processor 310 executes various server functions and data processing by running non-volatile software programs, instructions, and modules stored in the memory 320, thereby implementing the fiber optic perimeter vibration monitoring method described in the above embodiment. The input device 330 can receive input digital or character information and generate key signal inputs related to user settings and function control of the fiber optic perimeter vibration monitoring system. The output device 340 may include a display screen or other display device.

[0055] The aforementioned electronic device can execute the method provided in the embodiments of the present invention, and has the corresponding functional modules and beneficial effects for executing the method. Technical details not described in detail in this embodiment can be found in the method provided in the embodiments of the present invention.

[0056] In one implementation, the above-described electronic device is used in a fiber optic perimeter vibration monitoring system as a client, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to:

[0057] When an optical fiber electrical signal is received, the signal values ​​of the target optical fiber at different positions at the same time are acquired, wherein the optical fiber electrical signal is obtained by converting the optical signal reflected by the optical fiber;

[0058] Based on a preset first selection rule, the first average value of the signal value of the target optical fiber in the target distance segment is selected at the first moment;

[0059] Based on a preset second selection rule, the second average value of the signal value of the target optical fiber in the target distance segment is selected at the second time.

[0060] The first vibration magnitude of the target optical fiber is determined based on the difference between the first average value and the second average value.

[0061] The vibration signal of the environment where the optical fiber is located is acquired, the vibration signal is denoised to obtain a first vibration signal, and the first vibration signal is input into a preset vibration monitoring model, and the vibration monitoring model outputs a second vibration quantity;

[0062] Based on the second vibration amount, the first vibration amount is corrected using a preset correction rule to obtain the final vibration result of the target optical fiber.

[0063] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for monitoring fiber optic perimeter vibration, characterized in that, include: When an optical fiber electrical signal is received, the signal values ​​of the target optical fiber at different positions at the same time are acquired, wherein the optical fiber electrical signal is obtained by converting the optical signal reflected by the optical fiber; Based on a preset first selection rule, a first average value of the signal value of the target optical fiber in the target distance segment is selected at a first moment, wherein the selection of the first average value of the signal value of the target optical fiber in the target distance segment based on the preset first selection rule at a first moment includes: The target optical fiber is marked with location points, and the signal values ​​at each first target marked location point are sequentially acquired based on a preset first dynamic distance interval, wherein the preset first dynamic distance interval is a distance interval that increases sequentially according to the number of selections; Calculate the average value of the signal at each of the first target marker locations to obtain the first average value; Based on a preset second selection rule, a second average value of the signal value of the target optical fiber in the target distance segment is selected at a second time. This selection, based on the preset second selection rule, includes: The target optical fiber is marked with location points, and the signal values ​​at each second target marked location point are sequentially acquired based on a preset first dynamic distance interval, wherein the preset first dynamic distance interval is a distance interval that decreases sequentially according to the number of selections; Calculate the average signal value at each of the second target marker locations to obtain the second average value; The first vibration magnitude of the target optical fiber is determined based on the difference between the first average value and the second average value. The vibration signal of the environment where the optical fiber is located is acquired, the vibration signal is denoised to obtain a first vibration signal, and the first vibration signal is input into a preset vibration monitoring model, and the vibration monitoring model outputs a second vibration quantity; Based on the second vibration amount, the first vibration amount is corrected using a preset correction rule to obtain the final vibration result of the target optical fiber.

2. The fiber optic perimeter vibration monitoring method according to claim 1, characterized in that, The optical fiber electrical signal is a digital electrical signal, wherein the digital electrical signal is obtained by converting an analog electrical signal, and the analog electrical signal is obtained by converting an optical signal reflected from the optical fiber.

3. The fiber optic perimeter vibration monitoring method according to claim 1, characterized in that, The process of acquiring the vibration signal of the environment where the optical fiber is located, and performing noise reduction processing on the vibration signal to obtain the first vibration signal includes: The vibration signal of the environment where the optical fiber is located is obtained, and the vibration signal is denoised using a wavelet denoising algorithm to obtain the first vibration signal.

4. The fiber optic perimeter vibration monitoring method according to claim 1, characterized in that, The vibration monitoring model includes an input layer, a long short-term memory network layer, a fully connected layer, and an output layer; The output of the input layer is connected to the input of the long short-term memory network layer, the output of the long short-term memory network layer is connected to the input of the fully connected layer, and the output of the fully connected layer is connected to the input of the output layer.

5. The fiber optic perimeter vibration monitoring method according to claim 1, characterized in that, The step of correcting the first vibration quantity according to the second vibration quantity using a preset correction rule to obtain the final vibration result of the target optical fiber includes: The difference between the first vibration quantity and the second vibration quantity is taken as the final vibration result of the target optical fiber.

6. A fiber optic perimeter vibration monitoring system, characterized in that, include: The acquisition module is configured to acquire the signal values ​​of the target optical fiber at different positions at the same time when an optical fiber electrical signal is received, wherein the optical fiber electrical signal is obtained by converting the optical signal reflected by the optical fiber; The first selection module is configured to select, at a first moment, a first average value of the signal value of the target optical fiber in the target distance segment based on a preset first selection rule, wherein selecting the first average value of the signal value of the target optical fiber in the target distance segment based on the preset first selection rule includes: The target optical fiber is marked with location points, and the signal values ​​at each first target marked location point are sequentially acquired based on a preset first dynamic distance interval, wherein the preset first dynamic distance interval is a distance interval that increases sequentially according to the number of selections; Calculate the average value of the signal at each of the first target marker locations to obtain the first average value; The second selection module is configured to select a second average value of the signal value of the target optical fiber in the target distance segment at a second time based on a preset second selection rule, wherein the selection of the second average value of the signal value of the target optical fiber in the target distance segment at a second time based on the preset second selection rule includes: The target optical fiber is marked with location points, and the signal values ​​at each second target marked location point are sequentially acquired based on a preset first dynamic distance interval, wherein the preset first dynamic distance interval is a distance interval that decreases sequentially according to the number of selections; Calculate the average signal value at each of the second target marker locations to obtain the second average value; The determination module is configured to determine the first vibration amount of the target optical fiber based on the difference between the first average value and the second average value; The output module is configured to acquire the vibration signal of the environment where the optical fiber is located, perform noise reduction processing on the vibration signal to obtain a first vibration signal, and input the first vibration signal into a preset vibration monitoring model, wherein the vibration monitoring model outputs a second vibration quantity; The correction module is configured to correct the first vibration quantity according to the second vibration quantity using a preset correction rule, so as to obtain the final vibration result of the target optical fiber.

7. An electronic device, characterized in that, include: At least one processor, and a memory communicatively connected to the at least one processor, wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method described in any one of claims 1 to 5.

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