Fiber-based external damage prevention monitoring method, device and equipment and storage medium

Abstract

The present application relates to the field of security, and particularly relates to a method, device and equipment for monitoring external damage based on optical fiber and a storage medium. The method comprises: obtaining alarm data obtained by a distributed optical fiber monitoring device monitoring a sensing optical fiber; comparing the alarm data with a preset vibration frequency database to determine an alarm event of the alarm data and to determine whether the alarm event needs to wake up a camera; if yes, analyzing vibration information of the optical fiber channel to determine an alarm defense area and a preset point corresponding to the vibration information; accessing and controlling the camera corresponding to the alarm defense area through a preset monitoring mapping table until a camera area of the camera contains the preset point. The present application monitors vibration information of the optical fiber channel through the sensing optical fiber, locates a vibration source based on the vibration information, wakes up the corresponding camera to realize joint defense operation of the optical fiber channel, and timely discovers and judges the type of external damage.

Description

Technical Field

[0001] This invention relates to the field of security, and in particular to a fiber optic-based method, device, equipment, and storage medium for preventing external damage during monitoring. Background Technology

[0002] In the current security field, optical sensor DVS is commonly used to monitor vibration signals to identify external force damage warnings. The type of external force damage is determined by the characteristic signals of vibration fed back by the device. Alternatively, cameras are used to monitor fiber optic channels, and then common image recognition algorithms are used to identify the behavior that damages the fiber optic channel. However, common fiber optic channel monitoring methods often cannot effectively monitor fiber optic channels due to weather, sunlight, and other factors. Using optical sensor DVS to monitor vibration signals to identify external force damage warnings cannot effectively distinguish the type of external force damage. Similarly, relying solely on optical sensor DVS to monitor vibration signals to identify external force damage cannot accurately update the identification of the type of external force damage, leading to untimely fault detection and affecting communication security. Summary of the Invention

[0003] The main objective of this invention is to solve the technical problems of low recognition rate and poor behavior judgment ability in existing fiber optic channel monitoring methods.

[0004] The first aspect of this invention provides a fiber-optic-based method for preventing external damage monitoring. The fiber-optic-based monitoring system includes a distributed fiber optic monitoring device for connecting sensing fibers; the sensing fibers are laid in an optical fiber channel; the fiber-optic-based monitoring system further includes several cameras monitoring the optical fiber channel; the fiber-optic-based monitoring method includes: acquiring alarm data obtained by the distributed fiber-optic monitoring device monitoring the sensing fibers, wherein the alarm data is generated from vibration information of the optical fiber channel, and the optical fiber channel is divided into several alarm zones; and comparing the alarm data with a preset vibration threshold. The frequency database is compared to determine the alarm event of the alarm data, and it is determined whether the alarm event needs to activate the camera. If so, the vibration information of the fiber optic channel is analyzed to determine the alarm zone and preset point corresponding to the vibration information. The preset point is obtained by dividing the fiber optic channel at fixed intervals in advance. The camera corresponding to the alarm zone is accessed and controlled to move through a preset monitoring mapping table until the camera's imaging area contains the preset point. The monitoring mapping table records the mapping relationship between the preset point of the target fiber in the fiber optic channel and the camera.

[0005] Optionally, in a first implementation of the first aspect of the present invention, before obtaining the alarm data obtained by the distributed optical fiber monitoring device monitoring the sensing optical fiber, the method further includes: performing image analysis based on the video data collected by the camera to obtain analysis results; classifying the video data into different categories of alarm events based on the analysis results; retrieving vibration information generated by the sensing optical fiber corresponding to the recording time of the video data by extracting the recording time; determining whether the alarm data generated by the vibration information is the same as the alarm event identified by the video data; if not, optimizing the vibration frequency database based on the vibration information recorded in the recording time of the video data.

[0006] Optionally, in a second implementation of the first aspect of the present invention, before acquiring the alarm data obtained by the distributed optical fiber monitoring device monitoring the sensing optical fiber, the method further includes: dividing the optical fiber channel into several preset points based on a preset interval; collecting the background noise information of each preset point under normal conditions, and setting an alarm threshold for the preset point based on the background noise information; and dividing the preset point into a corresponding alarm zone based on the coordinate information of the preset point.

[0007] Optionally, in a third implementation of the first aspect of the present invention, the step of obtaining alarm data obtained by the distributed optical fiber monitoring device from the sensing optical fiber includes: obtaining vibration information of the optical fiber channel transmitted by the sensing optical fiber monitored by the distributed optical fiber monitoring device; performing vibration analysis on the vibration information to determine whether the vibration information is interference information; if not, extracting the signal waveform and vibration time from the vibration information, and using the signal waveform and vibration time as alarm data corresponding to the vibration information.

[0008] Optionally, in a fourth implementation of the first aspect of the present invention, the step of parsing the vibration information of the optical fiber channel to determine the alarm zone and preset point corresponding to the vibration information includes: connecting the signal node of the sensing optical fiber according to the vibration information; calculating the transmission distance between the vibration source and the signal node through the vibration information; locating the coordinate information of the vibration source according to the transmission distance and the preset optical cable route; and retrieving and determining the alarm zone and preset point covering the coordinate information.

[0009] Optionally, in a fifth implementation of the first aspect of the present invention, the step of accessing and controlling the movement of the camera corresponding to the alarm zone through a preset monitoring mapping table until the camera's imaging area contains the preset point further includes: retrieving the corresponding camera based on the determined alarm zone through the preset monitoring mapping table; accessing the camera corresponding to the determined alarm zone and obtaining the monitoring information collected by the camera, wherein the monitoring information includes the camera's initial angle and camera coordinates; and controlling the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the coordinate information of the vibration source, the camera's initial angle, and the camera coordinates.

[0010] Optionally, in a sixth implementation of the first aspect of the present invention, controlling the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the coordinate information of the vibration source, the initial angle of the camera, and the camera coordinates includes: determining the shooting range of the camera based on the initial angle of the camera and the camera coordinates; determining whether the coordinate information of the vibration source is located within the shooting range; if not, determining the preset point closest to the vibration source based on the coordinate information of the vibration source; calculating the rotation angle between the centerline of the camera's shooting range and the line connecting the camera and the preset point, with the camera as the origin, using the determined preset point, the initial angle of the camera, and the camera coordinates; and controlling the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the rotation angle.

[0011] A second aspect of the present invention provides a fiber optic-based external damage prevention monitoring device. The fiber optic-based external damage prevention monitoring system includes a distributed fiber optic monitoring device for connecting to a sensing fiber optic cable; the sensing fiber optic cable is laid in a fiber optic channel; the fiber optic-based external damage prevention monitoring system further includes a plurality of cameras monitoring the fiber optic channel; the fiber optic-based external damage prevention monitoring device includes: an alarm data acquisition module for acquiring alarm data obtained by the distributed fiber optic monitoring device monitoring the sensing fiber optic cable, wherein the alarm data is generated from vibration information of the fiber optic channel, and the fiber optic channel is divided into a plurality of alarm zones; and a camera activation module for comparing the alarm data with a preset vibration level. The alarm data is compared with a frequency database to determine the alarm event and whether the alarm event needs to activate the camera. An alarm zone determination module, if so, analyzes the vibration information of the fiber optic channel to determine the alarm zone and preset point corresponding to the vibration information, wherein the preset point is pre-divided at fixed intervals on the fiber optic channel. A camera control module, through a preset monitoring mapping table, accesses and controls the movement of the camera corresponding to the alarm zone until the camera's imaging area includes the preset point, wherein the monitoring mapping table records the mapping relationship between the preset point of the target fiber in the fiber optic channel and the camera.

[0012] Optionally, in the first implementation of the second aspect of the present invention, the fiber-optic-based anti-external damage monitoring device further includes a vibration frequency database optimization module. The vibration frequency database optimization module is specifically used for: performing image analysis based on the camera data collected by the camera to obtain analysis results; classifying the camera data into different categories of alarm events based on the analysis results; retrieving vibration information generated by the sensing fiber corresponding to the recording time of the camera data by extracting the recording time; determining whether the alarm data generated by the vibration information is the same as the alarm event identified by the camera data; if not, optimizing the vibration frequency database based on the vibration information recorded in the recording time of the camera data.

[0013] Optionally, in a second implementation of the second aspect of the present invention, the fiber-optic-based anti-external damage monitoring device further includes a preset point division module, which is specifically used for: dividing the fiber optic channel into several preset points based on preset intervals; collecting the background noise information of each preset point under normal conditions, and setting an alarm threshold for the preset point based on the background noise information; and assigning the preset point to a corresponding alarm zone based on the coordinate information of the preset point.

[0014] Optionally, in a third implementation of the second aspect of the present invention, the alarm data acquisition module is specifically used to: acquire vibration information of the optical fiber channel transmitted by the sensing optical fiber monitored by the distributed optical fiber monitoring device; perform vibration analysis on the vibration information to determine whether the vibration information is interference information; if not, extract the signal waveform and vibration time in the vibration information, and use the signal waveform and vibration time as alarm data corresponding to the vibration information.

[0015] Optionally, in a fourth implementation of the second aspect of the present invention, the alarm zone determination module is specifically used for: connecting the signal node of the sensing optical fiber according to the vibration information; calculating the transmission distance between the vibration source and the signal node through the vibration information; locating the coordinate information of the vibration source according to the transmission distance and the preset optical cable route; and retrieving and determining the alarm zone and preset point covering the coordinate information.

[0016] Optionally, in the fifth implementation of the second aspect of the present invention, the camera control module is specifically configured as follows: a camera determination unit, which retrieves the corresponding camera based on a determined alarm zone through a preset monitoring mapping table; a camera access unit, which accesses the camera corresponding to the determined alarm zone and obtains the monitoring information collected by the camera, wherein the monitoring information includes the initial angle and camera coordinates of the camera; and a camera control unit, which controls the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the coordinate information of the vibration source, the initial angle and camera coordinates of the camera.

[0017] Optionally, in a sixth implementation of the second aspect of the present invention, the camera control unit is specifically used to: determine the shooting range of the camera based on the initial angle and camera coordinates; determine whether the coordinate information of the vibration source is located within the shooting range; if not, determine the preset point closest to the vibration source based on the coordinate information of the vibration source; calculate the rotation angle between the centerline of the camera shooting range and the line connecting the camera and the preset point, with the camera as the origin, using the determined preset point, the initial angle and camera coordinates; and control the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the rotation angle.

[0018] A third aspect of the present invention provides a fiber optic-based external damage prevention monitoring device, comprising: a memory and at least one processor, wherein the memory stores requests, and the memory and the at least one processor are interconnected via a line; the at least one processor invokes the requests in the memory to cause the fiber optic-based external damage prevention monitoring device to perform the steps of the fiber optic-based external damage prevention monitoring method described above.

[0019] A fourth aspect of the present invention provides a computer-readable storage medium storing a request that, when executed on a computer, causes the computer to perform the steps of the fiber-optic-based external damage prevention monitoring method described above.

[0020] In the technical solution of this invention, alarm data obtained by the distributed optical fiber monitoring device from the sensing optical fiber is acquired. The alarm data is generated from the vibration information of the optical fiber channel, which is divided into several alarm zones. The alarm data is compared with a preset vibration frequency database to determine the alarm event and whether the alarm event requires activating the camera. If so, the vibration information of the optical fiber channel is analyzed to determine the corresponding alarm zone and preset point, where the preset point is pre-divided at fixed intervals on the optical fiber channel. A preset monitoring mapping table is used to access and control the movement of the camera corresponding to the alarm zone until the camera's field of view includes the preset point. The monitoring mapping table records the mapping relationship between the preset point of the target optical fiber in the optical fiber channel and the camera. This application monitors the vibration information of the optical fiber channel using the sensing optical fiber, locates the vibration source based on the vibration information, and activates the corresponding camera to achieve joint defense operation of the optical fiber channel, promptly detecting and judging the type of external force damage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the first embodiment of the fiber optic-based anti-external damage monitoring method in this invention.

[0022] Figure 2 This is a schematic diagram of the second embodiment of the fiber optic-based anti-external damage monitoring method in this invention.

[0023] Figure 3 This is a schematic diagram of the third embodiment of the fiber optic-based anti-external damage monitoring method in this invention.

[0024] Figure 4 This is a schematic diagram of one embodiment of the fiber optic-based anti-external damage monitoring device of the present invention;

[0025] Figure 5 This is a schematic diagram of another embodiment of the fiber optic-based anti-external damage monitoring device of the present invention;

[0026] Figure 6 This is a schematic diagram of one embodiment of the fiber optic-based anti-external damage monitoring device of the present invention. Detailed Implementation

[0027] In the technical solution of this invention, alarm data obtained by the distributed optical fiber monitoring device from the sensing optical fiber is acquired. The alarm data is generated from the vibration information of the optical fiber channel, which is divided into several alarm zones. The alarm data is compared with a preset vibration frequency database to determine the alarm event and whether the alarm event requires activating the camera. If so, the vibration information of the optical fiber channel is analyzed to determine the corresponding alarm zone and preset point, where the preset point is pre-divided at fixed intervals on the optical fiber channel. A preset monitoring mapping table is used to access and control the movement of the camera corresponding to the alarm zone until the camera's field of view includes the preset point. The monitoring mapping table records the mapping relationship between the preset point of the target optical fiber in the optical fiber channel and the camera. This application monitors the vibration information of the optical fiber channel using the sensing optical fiber, locates the vibration source based on the vibration information, and activates the corresponding camera to achieve joint defense operation of the optical fiber channel, promptly detecting and judging the type of external force damage.

[0028] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar elements and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” or “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0029] For ease of understanding, the specific process of the embodiments of the present invention is described below. Please refer to [link / reference]. Figure 1 The first embodiment of the fiber optic-based anti-external damage monitoring method in this invention includes:

[0030] 101. Obtain alarm data from the sensing optical fibers monitored by the distributed optical fiber monitoring equipment;

[0031] In this embodiment, the sensing fiber is laid in the fiber optic channel, which includes, but is not limited to, various laying methods such as buried pipe, direct burial, underwater, through wall, and cable tray. After the sensing fiber is laid, the vibration information transmitted from the outside is monitored through the sensing fiber and returned to the data acquisition device in the fiber-optic-based external damage prevention monitoring device. The data acquisition device processes the vibration information to obtain the corresponding alarm data.

[0032] Specifically, the distributed optical fiber monitoring equipment also includes a data acquisition device, which is a sensing optical fiber sensing device that integrates functions such as a narrow linewidth laser generator, data acquisition, signal processing, and data transmission. This device can inject laser pulses into the sensing optical fiber and then detect the vibration of the entire sensing optical fiber based on effects such as Rayleigh scattering generated in the sensing optical fiber.

[0033] Specifically, distributed fiber optic monitoring equipment can be DVS (Distributed Optical Fiber Vibration Sensing) equipment, DAS (Distributed Fiber Acoustic Sensing) equipment, etc.

[0034] 102. Compare the alarm data with the preset vibration frequency database to determine the alarm event of the alarm data, and determine whether the alarm event needs to wake up the camera;

[0035] In this embodiment, a vibration frequency database is preset, wherein different vibration frequencies, vibration waveforms and amplitudes are preset in the vibration frequency database, corresponding to different alarm events, as well as the distance from the vibration point of the alarm event to the sensing optical fiber.

[0036] Specifically, by comparing the alarm data with vibration data in a preset vibration frequency database, the alarm event corresponding to the alarm data is determined. That is, the vibration frequency, vibration waveform and amplitude that are similar to the alarm data are searched in the vibration frequency database to determine the alarm event corresponding to the alarm data. Based on the severity of the alarm event, it is determined whether the alarm event corresponding to the alarm data needs to be activated by the camera.

[0037] 103. If so, analyze the vibration information of the fiber optic channel to determine the alarm zone and preset point corresponding to the vibration information.

[0038] In this embodiment, if it is determined that an alarm event requires the camera to be activated, the acquired vibration information is analyzed to determine the coordinate information of the vibration source and the alarm zone corresponding to the coordinate information.

[0039] Specifically, the camera has a corresponding shooting range. By dividing the camera into alarm zones, once the coordinate information of the vibration source is determined and the alarm zone is determined based on the coordinate information, the camera corresponding to the alarm zone or the camera corresponding to the coordinate information can be accessed and controlled through the monitoring mapping table between the alarm zone and the camera.

[0040] 104. Access and control the movement of the camera corresponding to the alarm zone through the preset monitoring mapping table until the camera's field of view includes the preset point.

[0041] In this embodiment, the preset monitoring mapping table should cover cameras and the alarm zones corresponding to the cameras. The alarm zone can be understood as the shooting range of the camera, that is, the coverage area of ​​the shooting.

[0042] On the one hand, if the camera can rotate, the total shooting range can be obtained based on the rotation angle and the sum of the shooting range at different angles, and the total shooting range can be used as the alarm zone of the rotating camera.

[0043] In this embodiment, alarm data obtained by the distributed optical fiber monitoring device from the sensing optical fiber is acquired. This alarm data is generated from vibration information of the optical fiber channel, which is divided into several alarm zones. The alarm data is compared with a preset vibration frequency database to determine the alarm event and whether the alarm event requires activating the camera. If so, the vibration information of the optical fiber channel is analyzed to determine the corresponding alarm zone and preset point. The preset point is pre-divided at fixed intervals on the optical fiber channel. A preset monitoring mapping table is used to access and control the movement of the camera corresponding to the alarm zone until the camera's field of view includes the preset point. The monitoring mapping table records the mapping relationship between the preset point of the target optical fiber in the optical fiber channel and the camera. This application monitors the vibration information of the optical fiber channel using the sensing optical fiber, locates the vibration source based on the vibration information, and activates the corresponding camera to achieve joint defense operation of the optical fiber channel, promptly detecting and judging the type of external force damage.

[0044] Please see Figure 2 The second embodiment of the fiber optic-based anti-external damage monitoring method in this invention includes:

[0045] 201. Perform image analysis based on the camera data collected by the camera to obtain the analysis results;

[0046] In this embodiment, the camera data collected by the camera is analyzed to determine whether there are any alarm events, and the analysis results containing alarm events are obtained.

[0047] Specifically, the camera's shooting range is monitored through image recognition algorithms. When an object's movement trajectory is visible within the shooting range, recording begins. The object's movement trajectory is then analyzed to determine the alarm events occurring in the camera data. These alarm events include, but are not limited to, road excavation, road surface damage, image obstruction, underground operations, personnel construction, and vehicle collisions.

[0048] 202. Based on the analysis results, alarm events are classified into different categories according to the camera data;

[0049] In this embodiment, the analysis results obtained through the image recognition algorithm are used to classify the acquired camera data into different categories of alarm events.

[0050] Specifically, there are situations where an alarm event occurs within the alarm zone and requires an alarm to be triggered. Similarly, there are also situations where an alarm event occurs outside the alarm zone but is detected and recorded by the distributed fiber optic monitoring equipment simply because the vibration is transmitted to the sensing fiber optic cable, without affecting the fiber optic channel.

[0051] 203. By extracting the recording time of the camera data, retrieve the vibration information generated by the sensing fiber during the corresponding recording time;

[0052] In this embodiment, the recording time of the camera data is obtained from the camera, and the vibration information generated during the recording time is retrieved from the sensing optical fiber laid in the alarm zone through the data acquisition device or the corresponding cloud platform.

[0053] Specifically, the recording time is not limited to the total duration of recording vibration information. Commonly, it is divided according to the period of the signal waveform corresponding to the common alarm time, or the total vibration duration, such as three seconds, five seconds, or other different durations.

[0054] 204. Determine whether the alarm data generated by the vibration information is the same as the alarm event identified by the camera data;

[0055] In this embodiment, based on the recording time, the vibration information collected by the sensing fiber corresponding to the alarm area is judged to determine whether the vibration information generates alarm data, and whether the alarm data generated by the vibration information is the same as the alarm event obtained by parsing the video data generated by the camera.

[0056] 205. If not, optimize the vibration frequency database based on the vibration information recorded during the recording time of the camera data;

[0057] In this embodiment, if the alarm data generated by vibration information is different from the alarm event obtained by parsing the video data generated by the camera, the alarm event obtained by parsing the video data generated by the camera is taken as the main one, and the vibration information generated by the sensing fiber during the recording time is associated with it. The associated alarm event and vibration information are then optimized into the vibration frequency database.

[0058] 206. Obtain vibration information from the transmission fiber optic channel of the monitoring and sensing fiber optic device of the distributed optical fiber monitoring equipment;

[0059] In this embodiment, based on the transmission of optical signals in the sensing optical fiber, external vibrations cause reflection and scattering effects on the optical signals transmitted in the sensing optical fiber, resulting in changes in wavelength, amplitude, and phase. Based on these changes, the signal waveform corresponding to the vibration is extracted from the optical fiber. The signal waveform contains frequency, amplitude, and phase information, which serves as the vibration information obtained by the sensing optical fiber through the detection optical fiber channel.

[0060] 207. Perform vibration analysis on the vibration information to determine whether the vibration information is interference information;

[0061] In this embodiment, vibration analysis can be performed on the vibration information collected by the sensing fiber through a cloud platform or data acquisition device to determine whether the vibration information is interference information. Specifically, interference information can be understood as invalid vibration information transmitted by the sensing fiber during daily operation, occasional road vibration, vehicles, and personnel.

[0062] 208. If not, extract the signal waveform and vibration time from the vibration information, and use the signal waveform and vibration time as the alarm data corresponding to the vibration information;

[0063] In this embodiment, if the vibration information is identified as interference, the vibration information is excluded, and the process returns to step 206 to continuously monitor the vibration information of the fiber optic channel. If not, the signal waveform and vibration time in the vibration information are extracted, and the signal waveform and vibration time are used as alarm data corresponding to the vibration information. The vibration time can be, on the one hand, the entire vibration duration from the occurrence to the end of the vibration source, or on the other hand, the vibration time of the vibration source in one vibration cycle.

[0064] 209. Compare the alarm data with the preset vibration frequency database to determine the alarm event of the alarm data, and determine whether the alarm event needs to wake up the camera;

[0065] 210. If so, then connect the signal node of the sensing fiber optic cable based on the vibration information;

[0066] In this embodiment, by determining the sensing fiber that transmits vibration information and the signal node connected to the sensing fiber, the transmission distance between the vibration source and the signal node is calculated. The signal node is a distributed optical fiber monitoring device, such as a DVS (Distributed Optical Fiber Vibration Sensing) or DAS (Distributed Fiber Acoustic Sensing) device used to transmit and receive optical signals.

[0067] On the one hand, if so, then based on the scattering effect of the sensing fiber, the sensing fiber that transmits the vibration information is determined according to the vibration information; according to the preset fiber topology, the common fiber channel of the sensing fiber that transmits the vibration information is determined; and the alarm zone corresponding to the vibration information is determined through the common fiber channel.

[0068] In this embodiment, if an alarm event requires the camera to be activated, the sensing optical fibers that simultaneously trigger alarm events are identified based on the same alarm event. A preset optical fiber topology map is used to determine the common optical fiber channel through which the sensing optical fibers transmitting vibration information pass. The optical fiber topology map displays the laying paths of several sensing optical fibers, their connection relationships, and several optical fiber nodes. Simultaneously, the optical fiber topology map, combined with GIS, displays the laying paths of several sensing optical fibers on the GIS map coordinates, visually showing the sensing optical fibers laid in each optical fiber path, as well as the node coordinates and location of the optical fiber nodes within the optical fiber path. The optical fiber nodes can be inspection wells, computer rooms (switches, hubs, ODF drives, etc.), or bends in the laying path, etc.

[0069] In this embodiment, by identifying sensing fibers that commonly experience the same alarm event, and based on a preset fiber optic topology, the shared fiber optic channel is determined as the alarm zone corresponding to the vibration information.

[0070] Specifically, for example, if there are three sensing optical fibers A / B / C, the laying path (or optical fiber channel) of sensing fiber A is abcd, the optical fiber channel through which sensing fiber B passes is (a1-b1-c-d1), and the optical fiber channel through which sensing fiber C passes is (a2-b2-c-d2), and all three sensing optical fibers A / B / C detect the same alarm event, then it can be determined that the alarm event occurred in segment c of optical fiber channel, and optical fiber channel c is determined as the alarm zone.

[0071] 211. Calculate the transmission distance between the vibration source and the signal node using vibration information;

[0072] 212. Locate the coordinates of the vibration source based on the transmission distance and the preset optical cable route;

[0073] In this embodiment, the optical cable route is formed by pre-collection. The sensing optical fiber has a reserved length during the laying process, and its length is not directly equivalent to the path length. Therefore, during the positioning process, the coordinate information of the vibration source is located by using the preset optical cable route, which includes the length of the sensing optical fiber corresponding to each path and each optical cable channel.

[0074] 213. Retrieve and determine the alarm zones and preset points covering the coordinate information;

[0075] 214. Access and control the movement of the camera corresponding to the alarm zone through the preset monitoring mapping table until the camera's field of view includes the preset point.

[0076] This embodiment, based on the previous embodiment, describes in detail the process of image analysis based on the camera data collected by the camera to obtain analysis results; classifying the camera data into different categories of alarm events based on the analysis results; retrieving vibration information generated by the sensing fiber corresponding to the recording time of the camera data by extracting the recording time; determining whether the alarm data generated by the vibration information is the same as the alarm event identified by the camera data; if not, optimizing the vibration frequency database based on the vibration information recorded in the recording time of the camera data. Compared with traditional methods, this embodiment clarifies that if the alarm data generated by the vibration information is different from the alarm event obtained by analyzing the camera data, the alarm event obtained by analyzing the camera data is taken as the main one, associated with the vibration information generated by the sensing fiber in the recording time, and the associated alarm event and vibration information are optimized into the vibration frequency database.

[0077] Please see Figure 3 The third embodiment of the fiber optic-based anti-external damage monitoring method in this invention includes:

[0078] 301. Based on a preset interval, divide the fiber optic channel into several preset points;

[0079] In this embodiment, the preset point is the mobile camera's location monitoring capability provided by the camera manufacturer. In this technical solution, the location of each meter of the fiber optic cable protection zone is associated with the preset point of the camera, forming a "fiber optic cable location and preset point" relationship table, used for auxiliary judgment in early warning of external force damage.

[0080] 302. Collect the background noise information of each preset point under normal conditions, and set the alarm threshold of the preset point based on the background noise information;

[0081] In this embodiment, by traversing and collecting the background noise information of each preset point under normal conditions, corresponding alarm thresholds are set for preset points with different background noise information, thereby avoiding the phenomenon that some road sections, such as bridges, will frequently issue false alarms due to excessive background noise information caused by a uniform alarm threshold.

[0082] In this embodiment, vibration information corresponding to each preset point, such as the attenuation of the reflected light signal and the light intensity, can also be added to the "optical cable location and preset point" relationship table. When the light intensity of the acquired reflected light signal is within a certain range, the preset point corresponding to the vibration information can be determined.

[0083] 303. Based on the coordinate information of preset points, assign the preset points to the corresponding alarm zones;

[0084] In this embodiment, preset points with the same coordinate information are assigned to the corresponding alarm zones based on the determined alarm zones.

[0085] 304. Obtain alarm data from the sensing optical fibers monitored by the distributed optical fiber monitoring equipment;

[0086] 305. Compare the alarm data with the preset vibration frequency database to determine the alarm event of the alarm data, and determine whether the alarm event needs to wake up the camera;

[0087] In this embodiment, alarm data or alarm events can also be judged by an alarm threshold determined at each preset point to determine whether the alarm event needs to wake up the camera.

[0088] 306. If so, analyze the vibration information of the fiber optic channel to determine the alarm zone and preset point corresponding to the vibration information.

[0089] 307. Using a preset monitoring mapping table, retrieve the corresponding camera based on the determined alarm zone;

[0090] In this embodiment, a preset monitoring mapping table is used, which contains the mapping relationship between each alarm zone and the corresponding camera that captures the alarm zone. After the alarm zone is determined, the camera corresponding to the alarm zone is retrieved, and the monitoring information collected by the camera is obtained. The monitoring information includes the initial angle and coordinates of the camera.

[0091] 308. Access the camera corresponding to the identified alarm zone and obtain the monitoring information collected by the camera;

[0092] 309. Determine the camera's shooting range based on the camera's initial angle and camera coordinates;

[0093] In this embodiment, there may be situations where the camera cannot simultaneously capture the entire alarm zone. It is necessary to adjust the camera's shooting angle and further adjust the camera's shooting range. Based on the camera's known coordinates and initial angle, it is determined whether the shooting range includes the coordinate information of the vibration source. If the shooting range does not include the coordinate information of the vibration source, then based on the coordinate information of the vibration source, the initial angle of the camera, and the camera's coordinates, with the camera as the origin, the rotation angle between the centerline of the camera's shooting range and the line connecting the camera and the vibration source or a preset point is calculated.

[0094] On one hand, a planar coordinate system can be constructed with the camera as the origin, the centerline of the camera's field of view as the x-axis, and a 90-degree counterclockwise rotation as the y-axis. Based on the coordinates of the vibration source and the camera, the rotation angle between the centerline of the camera's field of view and the line connecting the camera and the vibration source is calculated. Then, the camera is controlled to rotate based on this rotation angle.

[0095] 310. Determine whether the coordinates of the vibration source are within the shooting range;

[0096] 311. If not, then determine the preset point closest to the vibration source based on the coordinate information of the vibration source;

[0097] 312. Using the predetermined preset point, the initial angle of the camera, and the camera coordinates, with the camera as the origin, calculate the rotation angle between the centerline of the camera's shooting range and the line connecting the camera and the preset point.

[0098] In this embodiment, a planar coordinate system can be constructed with the camera coordinates as the origin, the centerline of the camera's initial shooting range as the x-axis, and a 90-degree counterclockwise rotation as the y-axis. Based on the coordinate information of the vibration source and the camera coordinates, the rotation angle between the centerline of the camera's shooting range and the line connecting the camera and a preset point is calculated. Then, based on the rotation angle, the camera is controlled to perform a rotation angle operation, so that the centerline of the camera's shooting range overlaps with the corresponding preset point.

[0099] 313. Based on the rotation angle control, the corresponding camera performs a rotation angle operation to the corresponding preset point.

[0100] This embodiment, based on the previous embodiment, describes in detail the process of determining the camera's shooting range based on the camera's initial angle and camera coordinates; determining whether the coordinates of the vibration source are within the shooting range; if not, determining the preset point closest to the vibration source based on the vibration source's coordinates; calculating the rotation angle between the centerline of the camera's shooting range and the line connecting the camera and the preset point, with the camera as the origin, using the determined preset point, the camera's initial angle, and camera coordinates; and controlling the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the rotation angle. Compared to traditional methods, this embodiment clarifies that when a camera cannot simultaneously capture an entire alarm zone, it is necessary to adjust the camera's shooting angle and further adjust its shooting range. By using the camera's known coordinates and initial angle, it is determined whether the shooting range includes the coordinates of the vibration source. If the shooting range does not include the vibration source's coordinates, then based on the vibration source's coordinates, the camera's initial angle, and the camera's coordinates, with the camera as the origin, the rotation angle between the centerline of the camera's shooting range and the line connecting the camera and the vibration source is calculated. This expands the camera's alarm zone, saves on the number of cameras required, and increases the monitoring range.

[0101] The fiber-optic-based external damage prevention monitoring method in the embodiments of the present invention has been described above. The fiber-optic-based external damage prevention monitoring device in the embodiments of the present invention is described below. Please refer to [link / reference]. Figure 4 One embodiment of the fiber optic-based anti-external damage monitoring device of the present invention includes:

[0102] The alarm data acquisition module 401 is used to acquire alarm data obtained by the distributed optical fiber monitoring device from monitoring the sensing optical fiber, wherein the alarm data is generated by the vibration information of the optical fiber channel, and the optical fiber channel is divided into several alarm protection zones.

[0103] The camera wake-up module 402 is used to compare the alarm data with a preset vibration frequency database, determine the alarm event of the alarm data, and determine whether the alarm event needs to wake up the camera.

[0104] The alarm zone determination module 403 is used to analyze the vibration information of the optical fiber channel if the condition is met, and determine the alarm zone and preset point corresponding to the vibration information, wherein the preset point is obtained by dividing the optical fiber channel at fixed intervals in advance.

[0105] The camera control module 404 is used to access and control the movement of the camera corresponding to the alarm zone through a preset monitoring mapping table until the camera's imaging area contains the preset point. The monitoring mapping table records the mapping relationship between the preset point of the target optical fiber in the optical fiber channel and the camera.

[0106] In this embodiment of the invention, the fiber-optic-based external damage prevention monitoring device operates the aforementioned fiber-optic-based external damage prevention monitoring method, including: acquiring alarm data obtained by the distributed fiber-optic monitoring device monitoring the sensing fiber, wherein the alarm data is generated by vibration information of the fiber-optic channel, and the fiber-optic channel is divided into several alarm defense zones; comparing the alarm data with a preset vibration frequency database to determine the alarm event of the alarm data, and determining whether the alarm event needs to activate the camera; if so, parsing the vibration information of the fiber-optic channel to determine the alarm defense zone and preset point corresponding to the vibration information, wherein the preset point is obtained by pre-dividing the fiber-optic channel at fixed intervals; accessing and controlling the movement of the camera corresponding to the alarm defense zone through a preset monitoring mapping table until the camera's imaging area contains the preset point, wherein the monitoring mapping table records the mapping relationship between the preset point of the target fiber in the fiber-optic channel and the camera. This application monitors the vibration information of the fiber-optic channel by sensing the fiber-optic cable, locates the vibration source based on the vibration information, and activates the corresponding camera to realize joint defense operation of the fiber-optic channel, so as to promptly detect and determine the type of external force damage.

[0107] Please see Figure 5 The second embodiment of the fiber optic-based anti-external damage monitoring device of the present invention includes:

[0108] The alarm data acquisition module 401 is used to acquire alarm data obtained by the distributed optical fiber monitoring device from monitoring the sensing optical fiber, wherein the alarm data is generated by the vibration information of the optical fiber channel, and the optical fiber channel is divided into several alarm protection zones.

[0109] The camera wake-up module 402 is used to compare the alarm data with a preset vibration frequency database, determine the alarm event of the alarm data, and determine whether the alarm event needs to wake up the camera.

[0110] The alarm zone determination module 403 is used to analyze the vibration information of the optical fiber channel if the condition is met, and determine the alarm zone and preset point corresponding to the vibration information, wherein the preset point is obtained by dividing the optical fiber channel at fixed intervals in advance.

[0111] The camera control module 404 is used to access and control the movement of the camera corresponding to the alarm zone through a preset monitoring mapping table until the camera's imaging area contains the preset point. The monitoring mapping table records the mapping relationship between the preset point of the target optical fiber in the optical fiber channel and the camera.

[0112] In this embodiment, the fiber-optic-based anti-external damage monitoring device further includes a vibration frequency database optimization module 405, which is specifically used for:

[0113] Image analysis is performed on the camera data collected by the camera to obtain analysis results; based on the analysis results, the camera data is classified into different categories of alarm events; by extracting the recording time of the camera data, vibration information generated by the sensing fiber corresponding to the recording time is retrieved; it is determined whether the alarm data generated by the vibration information is the same as the alarm event identified by the camera data; if not, the vibration frequency database is optimized based on the vibration information recorded in the recording time of the camera data.

[0114] In this embodiment, the fiber-optic-based anti-external damage monitoring device further includes a preset point division module 406, which is specifically used for:

[0115] Based on a preset interval, several preset points are divided into the optical fiber channel; the background noise information of each preset point under normal conditions is collected and the alarm threshold of the preset point is set based on the background noise information; based on the coordinate information of the preset point, the preset point is assigned to the corresponding alarm zone.

[0116] In this embodiment, the alarm data acquisition module 401 is specifically used for:

[0117] The distributed optical fiber monitoring device acquires vibration information transmitted through the optical fiber channel by the sensing optical fiber; it performs vibration analysis on the vibration information to determine whether the vibration information is interference information; if not, it extracts the signal waveform and vibration time from the vibration information and uses the signal waveform and vibration time as alarm data corresponding to the vibration information.

[0118] In this embodiment, the alarm zone determination module 403 is specifically used for:

[0119] The signal node of the sensing optical fiber is connected according to the vibration information; the transmission distance between the vibration source and the signal node is calculated using the vibration information; the coordinate information of the vibration source is located according to the transmission distance and the preset optical cable route; the alarm zone and preset point covering the coordinate information are retrieved and determined.

[0120] In this embodiment, the camera control module 404 is specifically used for:

[0121] The camera determination unit 4041 retrieves the corresponding camera based on the determined alarm zone through a preset monitoring mapping table; the camera access unit 4042 accesses the camera corresponding to the determined alarm zone and obtains the monitoring information collected by the camera, wherein the monitoring information includes the initial angle and camera coordinates of the camera; the camera control unit 4043 controls the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the coordinate information of the vibration source, the initial angle and camera coordinates of the camera.

[0122] In this embodiment, the camera control unit 4043 is specifically used for:

[0123] Based on the initial angle and coordinates of the camera, the shooting range of the camera is determined; it is determined whether the coordinates of the vibration source are within the shooting range; if not, based on the coordinates of the vibration source, a preset point closest to the vibration source is determined; using the determined preset point, the initial angle of the camera, and the camera coordinates, with the camera as the origin, the rotation angle between the centerline of the camera's shooting range and the line connecting the camera and the preset point is calculated; based on the rotation angle, the corresponding camera is controlled to perform a rotation angle operation to the corresponding preset point.

[0124] Based on the previous embodiment, this embodiment describes in detail the specific functions of each module and the unit composition of some modules. Through the above modules, the specific functions of the original modules are refined, the operation of the fiber optic-based anti-external damage monitoring device is improved, its operational reliability is enhanced, and the actual logic between each step is clarified, thereby improving the practicality of the device.

[0125] above Figure 4 and Figure 5The fiber-optic-based external damage prevention monitoring device in this embodiment of the invention is described in detail from the perspective of modular functional entities. The fiber-optic-based external damage prevention monitoring equipment in this embodiment of the invention is described in detail from the perspective of hardware processing.

[0126] Figure 6 This is a schematic diagram of a fiber optic-based external damage prevention monitoring device 600 provided in an embodiment of the present invention. The fiber optic-based external damage prevention monitoring device 600 can vary significantly due to different configurations or performance characteristics. It may include one or more central processing units (CPUs) 610 (e.g., one or more processors) and a memory 620, and one or more storage media 630 (e.g., one or more mass storage devices) storing application programs 633 or data 632. The memory 620 and storage media 630 can be temporary or persistent storage. The program stored in the storage media 630 may include one or more modules (not shown in the diagram), each module may include a series of request operations on the fiber optic-based external damage prevention monitoring device 600. Furthermore, the processor 610 may be configured to communicate with the storage media 630 and execute the series of request operations in the storage media 630 on the fiber optic-based external damage prevention monitoring device 600 to implement the steps of the aforementioned fiber optic-based external damage prevention monitoring method.

[0127] The fiber optic-based anti-tampering monitoring device 600 may also include one or more power supplies 640, one or more wired or wireless network interfaces 650, one or more input / output interfaces 660, and / or one or more operating systems 631, such as Windows Server, Mac OS X, Unix, Linux, FreeBSD, etc. Those skilled in the art will understand that... Figure 6 The illustrated fiber optic-based external damage prevention monitoring device structure does not constitute a limitation on the fiber optic-based external damage prevention monitoring device provided in this application. It may include more or fewer components than illustrated, or combine certain components, or have different component arrangements.

[0128] The present invention also provides a computer-readable storage medium, which can be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium, wherein the computer-readable storage medium stores a request that, when the request is executed on a computer, causes the computer to perform the steps of the fiber-optic-based external damage prevention monitoring method.

[0129] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system, device, or unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0130] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several requests to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0131] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. 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. Such 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 fiber-optic-based method for preventing external damage monitoring, applied to a fiber-optic-based system for preventing external damage monitoring, characterized in that, The fiber-optic-based external damage prevention monitoring system includes a distributed fiber optic monitoring device for connecting sensing fibers; the sensing fibers are laid in the fiber optic channel; the fiber-optic-based external damage prevention monitoring system also includes several cameras for monitoring the fiber optic channel; The fiber-optic-based external damage prevention monitoring method includes: The alarm data obtained by the distributed optical fiber monitoring device from the sensing optical fiber is acquired, wherein the alarm data is generated from the vibration information of the optical fiber channel, and the optical fiber channel is divided into several alarm protection zones. The alarm data is compared with a preset vibration frequency database to determine the alarm event of the alarm data, and it is determined whether the alarm event needs to wake up the camera; If so, the vibration information of the optical fiber channel is analyzed to determine the alarm zone and preset point corresponding to the vibration information, wherein the preset point is obtained by dividing the optical fiber channel at fixed intervals in advance; The monitoring mapping table is used to access and control the movement of the camera corresponding to the alarm zone until the camera's field of view contains the preset point. The monitoring mapping table records the mapping relationship between the preset point of the target fiber in the fiber optic channel and the camera. The step of parsing the vibration information of the optical fiber channel to determine the alarm zone and preset point corresponding to the vibration information includes: connecting the signal node of the sensing optical fiber according to the vibration information; calculating the transmission distance between the vibration source and the signal node through the vibration information; locating the coordinate information of the vibration source according to the transmission distance and the preset optical cable route; and retrieving and determining the alarm zone and preset point covering the coordinate information. The step of accessing and controlling the movement of the camera corresponding to the alarm zone through a preset monitoring mapping table until the camera's field of view contains the preset point includes: retrieving the corresponding camera based on the determined alarm zone through the preset monitoring mapping table; accessing the camera corresponding to the determined alarm zone and obtaining the monitoring information collected by the camera, wherein the monitoring information includes the camera's initial angle and camera coordinates; and controlling the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the coordinate information of the vibration source, the camera's initial angle, and the camera coordinates. The step of controlling the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the coordinate information of the vibration source, the initial angle of the camera, and the camera coordinates includes: determining the camera's shooting range based on the camera's initial angle and camera coordinates; determining whether the coordinate information of the vibration source is within the shooting range; if not, determining the preset point closest to the vibration source based on the vibration source's coordinate information; calculating the rotation angle between the centerline of the camera's shooting range and the line connecting the camera and the preset point, with the camera as the origin, using the determined preset point, the camera's initial angle, and camera coordinates; and controlling the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the rotation angle.

2. The fiber-optic-based anti-external damage monitoring method according to claim 1, characterized in that, Before acquiring the alarm data obtained by the distributed optical fiber monitoring device from monitoring the sensing optical fiber, the method further includes: Image analysis is performed based on the camera data collected by the camera to obtain the analysis results; Based on the analysis results, the camera data is classified into different categories of alarm events; By extracting the recording time of the camera data, vibration information generated by the sensing fiber corresponding to the recording time can be retrieved. Determine whether the alarm data generated by the vibration information is the same as the alarm event identified by the camera data; If not, the vibration frequency database is optimized based on the vibration information recorded during the recording time of the camera data.

3. The fiber-optic-based anti-external damage monitoring method according to claim 1, characterized in that, Before acquiring the alarm data obtained by the distributed optical fiber monitoring device from monitoring the sensing optical fiber, the method further includes: Based on a preset interval, the optical fiber channel is divided into several preset points; The noise floor information of each preset point under normal conditions is collected traversally, and the alarm threshold of the preset point is set based on the noise floor information. Based on the coordinate information of the preset point, the preset point is assigned to the corresponding alarm zone.

4. The fiber optic-based anti-external damage monitoring method according to claim 1, characterized in that, The step of acquiring alarm data obtained by the distributed optical fiber monitoring device from monitoring the sensing optical fiber includes: The distributed optical fiber monitoring device acquires vibration information transmitted through the optical fiber channel by the sensing optical fiber. The vibration information is analyzed to determine whether it is interference information; If not, then extract the signal waveform and vibration time from the vibration information, and use the signal waveform and vibration time as alarm data corresponding to the vibration information.

5. A fiber optic-based external damage prevention monitoring device, applied to a fiber optic-based external damage prevention monitoring system, characterized in that, The fiber-optic-based external damage prevention monitoring system includes a distributed fiber optic monitoring device for connecting sensing fibers; the sensing fibers are laid in the fiber optic channel; the fiber-optic-based external damage prevention monitoring system also includes several cameras for monitoring the fiber optic channel; The fiber optic-based anti-external damage monitoring device includes: An alarm data acquisition module is used to acquire alarm data obtained by the distributed optical fiber monitoring device from the sensing optical fiber, wherein the alarm data is generated from the vibration information of the optical fiber channel, and the optical fiber channel is divided into several alarm protection zones. The camera wake-up module is used to compare the alarm data with a preset vibration frequency database, determine the alarm event of the alarm data, and determine whether the alarm event needs to wake up the camera. The alarm zone determination module is used to analyze the vibration information of the fiber optic channel if the condition is met, and determine the alarm zone and preset point corresponding to the vibration information, wherein the preset point is obtained by dividing the fiber optic channel at fixed intervals in advance. The camera control module is used to access and control the movement of the camera corresponding to the alarm zone through a preset monitoring mapping table until the camera's field of view contains the preset point. The monitoring mapping table records the mapping relationship between the preset point of the target optical fiber in the optical fiber channel and the camera. The alarm zone determination module is specifically used for: connecting the signal node of the sensing optical fiber according to the vibration information; calculating the transmission distance between the vibration source and the signal node through the vibration information; locating the coordinate information of the vibration source according to the transmission distance and the preset optical cable route; and retrieving and determining the alarm zone and preset point covering the coordinate information. The camera control module is specifically used for: a camera determination unit, which retrieves the corresponding camera based on the determined alarm zone through a preset monitoring mapping table; a camera access unit, which accesses the camera corresponding to the determined alarm zone and obtains the monitoring information collected by the camera, wherein the monitoring information includes the initial angle and camera coordinates of the camera; and a camera control unit, which controls the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the coordinate information of the vibration source, the initial angle and camera coordinates of the camera. The camera control unit is specifically used for: determining the camera's shooting range based on the camera's initial angle and camera coordinates; determining whether the vibration source's coordinate information is within the shooting range; if not, determining the preset point closest to the vibration source based on the vibration source's coordinate information; calculating the rotation angle between the centerline of the camera's shooting range and the line connecting the camera and the preset point, with the camera as the origin, using the determined preset point, the camera's initial angle, and camera coordinates; and controlling the corresponding camera to perform a rotation angle operation to the corresponding preset point based on the rotation angle.

6. The fiber optic-based anti-external damage monitoring device according to claim 5, characterized in that, The fiber-optic-based external damage prevention monitoring device also includes a vibration frequency database optimization module. This module is specifically used for: performing image analysis on the camera data collected by the camera to obtain analysis results; classifying the camera data into different categories of alarm events based on the analysis results; retrieving vibration information generated by the sensing fiber corresponding to the recording time of the camera data by extracting the recording time; determining whether the alarm data generated by the vibration information is the same as the alarm event identified by the camera data; if not, optimizing the vibration frequency database based on the vibration information recorded during the recording time of the camera data.

7. The fiber-optic-based anti-external damage monitoring device according to claim 5, characterized in that, The fiber-optic-based anti-external damage monitoring device also includes a preset point division module, which is specifically used to: divide the fiber optic channel into several preset points based on preset intervals; collect the background noise information of each preset point under normal conditions, and set the alarm threshold of the preset point based on the background noise information. Based on the coordinate information of the preset point, the preset point is assigned to the corresponding alarm zone.

8. The fiber-optic-based anti-external damage monitoring device according to claim 5, characterized in that, The alarm data acquisition module is specifically used to: acquire vibration information transmitted through the optical fiber channel by the sensing optical fiber monitored by the distributed optical fiber monitoring device; perform vibration analysis on the vibration information to determine whether the vibration information is interference information; if not, extract the signal waveform and vibration time in the vibration information, and use the signal waveform and vibration time as alarm data corresponding to the vibration information.

9. An electronic device, characterized in that, The electronic device includes a memory and at least one processor, the memory storing instructions; the at least one processor invokes the instructions in the memory to cause the electronic device to perform the various steps of the fiber-optic-based external damage prevention monitoring method as described in any one of claims 1-4.

10. A computer-readable storage medium storing instructions thereon, characterized in that, When the instructions are executed by the processor, they implement each step of the fiber-optic-based external damage prevention monitoring method as described in any one of claims 1-4.

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