Optical fiber perimeter vibration monitoring method and system

Abstract

The invention discloses an optical fiber perimeter vibration monitoring method and system. The method comprises the following steps: selecting a first average value of signal values of a target optical fiber in a target distance section at a first moment based on a preset first selection rule; selecting a second average value of the signal values of the target optical fiber in the target distance section at a second moment based on a preset second selection rule; determining a first vibration quantity of the target optical fiber according to a difference value between the first average value and the second average value; performing noise reduction processing on the vibration signal to obtain a first vibration signal, inputting the first vibration signal into a preset vibration monitoring model, and outputting a second vibration quantity by the vibration monitoring model; and correcting the first vibration quantity by adopting a preset correction rule to obtain a final vibration result of the target optical fiber. The first selection rule and the second selection rule are opposite to each other, so that the selected signal can cover the whole optical fiber as much as possible, and vibration monitoring of the light at different moments is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of optical fiber detection, and in particular relates to an optical fiber perimeter vibration monitoring method and system. Background Art

[0002] Fiber optic sensing is a new sensing technology that has developed rapidly in the 1970s along with the development of fiber optic communication technology. It uses optical signals as carriers and optical fibers as media to sense and transmit external vibration signals. In the actual application of fiber optic vibration sensing (DAS), data collection and reading are the prerequisites for processing. Since optical fibers have dense collection points and a huge amount of collected data, it is easy to generate data confusion and errors over time. At present, the vibration monitoring method for optical fibers is mainly through manual observation and monitoring, but the manual monitoring method has the disadvantages of low efficiency and inability to make timely predictions. Summary of the invention

[0003] The present invention provides an optical fiber perimeter vibration monitoring method and system, which are used to solve the technical problem that the method of monitoring by human observation has the disadvantages of low efficiency and failure to make timely predictions.

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

[0005] When receiving an optical fiber electrical signal, obtaining signal values ​​of the target optical fiber at different positions at the same time, wherein the optical fiber electrical signal is converted from an optical signal reflected by the optical fiber;

[0006] Selecting a 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;

[0007] Selecting a second average value of the signal value of the target optical fiber in the target distance segment at a second moment based on a preset second selection rule;

[0008] determining a first vibration amount of the target optical fiber according to a difference between the first average value and the second average value;

[0009] Acquire a vibration signal of an 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, and the vibration monitoring model outputs a second vibration quantity;

[0010] According to the second vibration amount, the first vibration amount is corrected using a preset correction rule to obtain a 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] an acquisition module, configured to acquire signal values ​​of the target optical fiber at different positions at the same time when receiving an optical fiber electrical signal, wherein the optical fiber electrical signal is converted from an optical signal reflected by the optical fiber;

[0013] A first selection module is configured to select a 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] A 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 moment based on a preset second selection rule;

[0015] a determination module, configured to determine a first vibration amount of the target optical fiber according to a difference between the first average value and the second average value;

[0016] An output module is configured to obtain a vibration signal of an 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, and the vibration monitoring model outputs a second vibration quantity;

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

[0018] According to a third aspect, 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, and the instructions are executed by the at least one processor so that the at least one processor can perform the steps of the optical fiber perimeter vibration monitoring method of any embodiment of the present invention.

[0019] In a fourth aspect, the present invention further provides a computer-readable storage medium having a computer program stored thereon, wherein when the program instructions are executed by a processor, the processor executes the steps of the optical fiber perimeter vibration monitoring method of any embodiment of the present invention.

[0020] The optical fiber perimeter vibration monitoring method and system of the present application selects a first average value of a signal value of a target optical fiber in a target distance segment at a first moment based on a preset first selection rule; selects a second average value of a signal value of a target optical fiber in a target distance segment at a second moment based on a preset second selection rule; determines a first vibration amount of the target optical fiber according to a difference between the first average value and the second average value, and by using the first selection rule and the second selection rule being opposite to each other, the selected signal can cover the entire optical fiber as much as possible, thereby facilitating vibration monitoring of the light at different moments, and obtaining the environmental vibration amount, i.e., the second vibration amount, so as to more accurately calculate the optical fiber vibration amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A flowchart of a method for monitoring optical fiber perimeter vibration provided by one embodiment of the present invention;

[0023] Figure 2 A structural block diagram of an optical fiber perimeter vibration monitoring system provided by an embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1 , which shows a flow chart of a method for monitoring optical fiber perimeter vibration of the present application.

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

[0028] Step S101, when an optical fiber electrical signal is received, signal values ​​of a target optical fiber at different positions at the same time are obtained, wherein the optical fiber electrical signal is converted from an 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 by the optical fiber.

[0030] Step S102: selecting a 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.

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

[0032] Step S103: selecting a second average value of the signal value of the target optical fiber in the target distance segment at a second moment based on a preset second selection rule.

[0033] In this step, the target optical fiber is marked at a position point, and the signal value at each second target marking position point is obtained in sequence based on a preset first dynamic distance interval, wherein the preset first dynamic distance interval is a distance interval that decreases in sequence according to the number of selections; the average value of the signal value at each second target marking position point is calculated to obtain a second average value.

[0034] Step S104: determining a first vibration amount of the target optical fiber according to a difference between the first average value and the second average value.

[0035] Step S105, obtaining a vibration signal of the environment in which the optical fiber is located, performing noise reduction processing on the vibration signal to obtain a first vibration signal, and inputting the first vibration signal into a preset vibration monitoring model, and the vibration monitoring model outputs a second vibration quantity.

[0036] In this step, a vibration signal of the environment in which the optical fiber is located is obtained, and a wavelet denoising algorithm is used to perform noise reduction processing on the vibration signal to obtain a 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: According to the second vibration amount, the first vibration amount is corrected using a preset correction rule to obtain a final vibration result of the target optical fiber.

[0039] In this step, the first vibration amount is subtracted from the second vibration amount, and the difference is used as the final vibration result of the target optical fiber.

[0040] In summary, the method of the present application selects a first average value of the signal value of the target optical fiber in the target distance segment at the first moment based on a preset first selection rule; selects a second average value of the signal value of the target optical fiber in the target distance segment at the second moment based on a preset second selection rule; determines the first vibration amount of the target optical fiber according to the difference between the first average value and the second average value, and by making the first selection rule and the second selection rule opposite to each other, the selected signal can cover the entire optical fiber as much as possible, thereby facilitating vibration monitoring of the light at different moments, and obtaining the environmental vibration amount, that is, the second vibration amount, so as to perform a more accurate calculation of the optical fiber vibration amount.

[0041] See also Figure 2 , which shows a structural block diagram of an optical fiber perimeter vibration monitoring system of the present application.

[0042] like Figure 2 As shown, the optical fiber 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] Among them, the acquisition module 210 is configured to obtain the signal values ​​of the target optical fiber at different positions at the same time when receiving the optical fiber electrical signal, wherein the optical fiber electrical signal is converted from the optical signal reflected by the optical fiber; the first selection module 220 is configured to select the first average value of the signal value of the target optical fiber in the target distance segment at the first time based on the preset first selection rule; the second selection module 230 is configured to select the second average value of the signal value of the target optical fiber in the target distance segment at the second time based on the preset second selection rule; the determination module 240 is configured to determine the first vibration amount of the target optical fiber according to the difference between the first average value and the second average value; the output module 250 is configured to obtain the vibration signal of the environment in which the optical fiber is located, perform noise reduction processing on the vibration signal to obtain the first vibration signal, and input the first vibration signal into a preset vibration monitoring model, and the vibration monitoring model outputs the 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 Modules and references documented in Figure 1 Therefore, the operations and features described above for the method and the corresponding technical effects are also applicable to Figure 2 The modules in it will not be described in detail here.

[0045] In some 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 executes the optical fiber perimeter vibration monitoring method in any of the above method embodiments;

[0046] As an implementation mode, the computer-readable storage medium of the present invention stores computer-executable instructions, and the computer-executable instructions are configured as follows:

[0047] When receiving an optical fiber electrical signal, obtaining signal values ​​of the target optical fiber at different positions at the same time, wherein the optical fiber electrical signal is converted from an optical signal reflected by the optical fiber;

[0048] Selecting a 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;

[0049] Selecting a second average value of the signal value of the target optical fiber in the target distance segment at a second moment based on a preset second selection rule;

[0050] determining a first vibration amount of the target optical fiber according to a difference between the first average value and the second average value;

[0051] Acquire a vibration signal of an 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, and the vibration monitoring model outputs a second vibration quantity;

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

[0053] The computer-readable storage medium may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the optical fiber perimeter vibration monitoring system, etc. In addition, the computer-readable storage medium may include a high-speed random access memory, and may also include a memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the computer-readable storage medium may optionally include a memory remotely disposed relative to the processor, and these remote memories may be connected to the optical fiber perimeter vibration monitoring system via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0054] Figure 3 is a schematic diagram of the structure of an electronic device provided by an 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, the memory 320, the input device 330 and the output device 340 may be connected via a bus or other means. Figure 3 The example of the bus connection is taken. The memory 320 is the computer-readable storage medium mentioned above. The processor 310 executes various functional applications and data processing of the server by running the non-volatile software programs, instructions and modules stored in the memory 320, that is, the optical fiber perimeter vibration monitoring method of the above method embodiment is realized. The input device 330 can receive input digital or character information, and generate key signal input related to user settings and function control of the optical fiber perimeter vibration monitoring system. The output device 340 may include display devices such as display screens.

[0055] The electronic device can execute the method provided by the embodiment of the present invention, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not described in detail in this embodiment, please refer to the method provided by the embodiment of the present invention.

[0056] As an implementation mode, the electronic device is applied to an optical fiber perimeter vibration monitoring system and is used for a client, and includes: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can:

[0057] When receiving an optical fiber electrical signal, obtaining signal values ​​of the target optical fiber at different positions at the same time, wherein the optical fiber electrical signal is converted from an optical signal reflected by the optical fiber;

[0058] Selecting a 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;

[0059] Selecting a second average value of the signal value of the target optical fiber in the target distance segment at a second moment based on a preset second selection rule;

[0060] determining a first vibration amount of the target optical fiber according to a difference between the first average value and the second average value;

[0061] Acquire a vibration signal of an 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, and the vibration monitoring model outputs a second vibration quantity;

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

[0063] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for monitoring optical fiber perimeter vibration, characterized in that: include: When receiving an optical fiber electrical signal, obtaining signal values ​​of the target optical fiber at different positions at the same time, wherein the optical fiber electrical signal is converted from an optical signal reflected by the optical fiber; Selecting a 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; Selecting a second average value of the signal value of the target optical fiber in the target distance segment at a second moment based on a preset second selection rule; determining a first vibration amount of the target optical fiber according to a difference between the first average value and the second average value; Acquire a vibration signal of an 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, and the vibration monitoring model outputs a second vibration quantity; According to the second vibration amount, the first vibration amount is corrected using a preset correction rule to obtain a final vibration result of the target optical fiber.

2. The optical fiber 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 by the optical fiber.

3. The optical fiber perimeter vibration monitoring method according to claim 1, characterized in that: The selecting, at the 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 comprises: Marking position points of the target optical fiber, and sequentially acquiring signal values ​​at each first target marking position point 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 mark position point is calculated to obtain a first average value.

4. The optical fiber perimeter vibration monitoring method according to claim 1, characterized in that: The selecting, at the second moment, a second average value of the signal value of the target optical fiber in the target distance segment based on a preset second selection rule comprises: Marking a position point of the target optical fiber, and sequentially acquiring a signal value at each second target marking position point 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 mark position point is calculated to obtain a second average value.

5. The optical fiber perimeter vibration monitoring method according to claim 1, characterized in that: The step of obtaining a vibration signal of an environment in which the optical fiber is located and performing noise reduction processing on the vibration signal to obtain a first vibration signal comprises: A vibration signal of the environment in which the optical fiber is located is obtained, and a wavelet denoising algorithm is used to perform noise reduction processing on the vibration signal to obtain a first vibration signal.

6. The optical fiber 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; Among them, 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.

7. The optical fiber perimeter vibration monitoring method according to claim 1, characterized in that: The step of correcting the first vibration amount according to the second vibration amount by using a preset correction rule to obtain a final vibration result of the target optical fiber includes: The first vibration amount is subtracted from the second vibration amount, and the difference is used as the final vibration result of the target optical fiber.

8. An optical fiber perimeter vibration monitoring system, characterized in that: include: an acquisition module, configured to acquire signal values ​​of the target optical fiber at different positions at the same time when receiving an optical fiber electrical signal, wherein the optical fiber electrical signal is converted from an optical signal reflected by the optical fiber; A first selection module is configured to select a 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; A 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 moment based on a preset second selection rule; a determination module, configured to determine a first vibration amount of the target optical fiber according to a difference between the first average value and the second average value; An output module is configured to obtain a vibration signal of an 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 quantity; The correction module is configured to correct the first vibration amount according to the second vibration amount by using a preset correction rule to obtain a final vibration result of the target optical fiber.

9. 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, and the instructions are executed by the at least one processor to enable the at least one processor to execute the method described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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