An optical cable burying depth detection method and system, an electronic device, and a storage medium

Abstract

The application provides an optical cable depth detection method, system, electronic equipment and storage medium. The detection method receives detection vibration applied on the ground directly above the optical cable to be detected by a vibration receiving device, compares the take-off time point of the second vibration data received by the vibration receiving device with the first vibration data received by the optical cable to be detected, finds the setting position of the vibration receiving device that makes the take-off time points of the first vibration data and the second vibration data coincide, and takes the horizontal distance from the vibration receiving device to the vibration applying position as the depth of the optical cable to be detected. Compared with the prior art, the application does not need to measure the propagation speed of the vibration, only needs a vibration receiving device capable of detecting ground vibration and uploading corresponding vibration data and time information to complete the measurement, and the operation of the measurement is simple and clear, greatly improves the efficiency of the depth detection of the optical cable to be detected, and effectively reduces the detection equipment and operation cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical fiber data processing, and more particularly, to an optical cable buried depth detection method and system, an electronic device and a storage medium. BACKGROUND

[0002] The traditional optical cable buried depth detection is mainly through the optical cable buried depth detection equipment to emit electromagnetic wave pulse radar to the ground to detect the underground metal or circular long strip object. When the metal or circular long strip object is detected, the reflection signal will be reflected back to the receiver. The receiver receives the signal and calculates the direct buried optical cable depth.

[0003] The traditional optical cable buried depth detection equipment as described above takes the metal or circular long strip object as the judgment standard, which is difficult to directly obtain the buried depth of the optical cable, and is prone to misjudgment, resulting in low accuracy. Moreover, the traditional optical cable buried depth detection equipment needs to be moved multiple times at a certain angle for detection, which is difficult to operate and takes a long time. SUMMARY

[0004] The present application aims to overcome at least one of the above-mentioned defects of the prior art, and provides an optical cable buried depth detection method, system, electronic device and storage medium for more accurately and quickly detecting the buried depth of the optical cable.

[0005] The technical solution adopted by the present application is as follows:

[0006] In a first aspect, the present application provides an optical cable buried depth detection method, which comprises:

[0007] Determining a vibration application position according to the optical cable route of the optical cable to be detected, and applying a detection vibration at the vibration application position; the vibration application position is located directly above the optical cable route;

[0008] Collecting first vibration data formed by the detection vibration in the optical cable to be detected corresponding to the vibration application position through a distributed optical fiber sensing device connected to the optical cable to be detected;

[0009] Collecting second vibration data formed by the detection vibration on the ground through a vibration receiving device; the vibration receiving device is arranged at a ground position at a certain horizontal distance from the vibration application position;

[0010] Aligning the first vibration data and the second vibration data according to the time information in the first vibration data and the second vibration data;

[0011] Judging whether the take-off time points of the aligned first vibration data and second vibration data coincide;

[0012] If the vibration receiving device and the vibration applying position are coincident, the horizontal distance between the vibration receiving device and the vibration applying position is taken as the burial depth of the optical cable to be measured;

[0013] If the vibration receiving device and the vibration applying position are not coincident, the setting position of the vibration receiving device is adjusted, and the horizontal distance between the vibration receiving device and the vibration applying position after the adjustment is taken as the burial depth of the optical cable to be measured.

[0014] Vibration generally spreads in all directions from the vibration source, and the vibration propagation speed can be approximately equal within a small distance range, such as when the transmission medium is the same. By using this property of vibration, the position directly above the optical cable to be measured is determined as the vibration applying position, and detection vibration is applied. Since the vibration applying position is directly above the optical cable to be measured, the vertical distance between the position where the optical cable to be measured first detects the detection vibration and the vibration applying position is the burial depth of the optical cable to be measured at the corresponding position. By using the vibration receiving device arranged on the ground to receive the detection vibration propagating in the ground direction, the first vibration data detected by the optical cable to be measured and the second vibration data detected by the vibration receiving device are compared to find the corresponding same take-off time point, which represents the time point when the corresponding device detects vibration. Under the assumption that the vibration propagation speed is the same, after the corresponding same take-off time point is found, the horizontal distance between the vibration receiving device and the vibration applying position is the burial depth of the optical cable to be measured.

[0015] In the present application, the specific vibration propagation speed does not need to be obtained, and only the first vibration data and the second vibration data detected by the optical cable to be measured and the vibration receiving device, respectively, need to be obtained and compared in terms of the take-off time point to correspondingly measure the burial depth of the optical cable to be measured. The operation is simple and efficient, and the burial depth of the optical cable to be measured can be calculated more quickly and accurately. In addition, since the operation of the present application is simple and efficient, and the vibration receiving device only needs to receive the second vibration data and upload it, the cost of operation and device production is greatly reduced.

[0016] Further, the vibration applying position is determined according to the optical cable route of the optical cable to be measured, and specifically includes:

[0017] In the direction intersecting the optical cable route of the optical cable to be measured, a plurality of ground positions are respectively applied with positioning vibration, and the vibration intensity of each positioning vibration is collected by the optical cable to be measured. The positioning vibration with the largest vibration intensity is taken as the vibration applying position.

[0018] In the propagation process of the vibration, with the increasing of the vibration propagation distance, the intensity of the vibration will be continuously attenuated, and the vibration intensity detected on the to-be-measured optical cable is the largest, which indicates that the straight-line distance between the ground position of the positioning vibration and the to-be-measured optical cable is the shortest, and the ground position is located directly above the optical cable route. The positioning of the vibration application position can be determined by accessing the distributed optical fiber sensing device of the to-be-measured optical cable without additional equipment, and the operation is simple and convenient, which improves the detection efficiency and reduces the operation cost.

[0019] Further, the time information is generated by a time synchronization device; and the distributed optical fiber sensing device and the vibration receiving device are both configured with the time synchronization device.

[0020] The time synchronization device is respectively configured in the distributed optical fiber sensing device and the vibration receiving device, and corresponding time information is respectively generated by the time synchronization device, so that the vibration receiving device can operate and detect separately from the distributed optical fiber sensing device. The vibration receiving device only needs to upload the detected second vibration data, reduces the data interaction process, and improves the detection efficiency.

[0021] Further, the time synchronization device includes a GPS unit.

[0022] The GPS unit has a simple structure and can effectively obtain millisecond-level positioning time, which reduces the cost of the device while ensuring the positioning accuracy.

[0023] Further, the step of adjusting the setting position of the vibration receiving device, and re-applying the detection vibration and obtaining the burial depth of the to-be-measured optical cable according to the horizontal distance between the adjusted setting position of the vibration receiving device and the vibration application position, specifically includes:

[0024] According to the take-off time point of the detection vibration corresponding to the first vibration data and the second vibration data, the setting position of the vibration receiving device is adjusted and the detection vibration is re-applied until a certain setting position is found, so that the first vibration data and the second vibration data coincide with the take-off time of the re-applied detection vibration.

[0025] When the take-off time points do not coincide, only the setting position of the vibration receiving device needs to be adjusted, that is, the horizontal distance from the vibration receiving device to the vibration application position, and the detection vibration is re-applied, which is simple and convenient to operate.

[0026] Further, the step of adjusting the setting position of the vibration receiving device according to the take-off time point of the first vibration data and the second vibration data specifically includes:

[0027] acquire a time difference condition of the take-off time points of the first vibration data and the second vibration data, acquire a distance size relationship of the vibration application position to the vibration receiving device and the optical cable to be measured respectively according to the time difference condition, and adjust the setting position of the vibration receiving device according to the distance size relationship.

[0028] In the case of assuming that the vibration propagation speeds are the same, the distance size relationship can be quickly acquired, and then the setting position of the vibration receiving device can be quickly adjusted according to the distance size relationship.

[0029] Further, the adjusting the setting position of the vibration receiving device according to the distance size relationship specifically comprises:

[0030] adjusting the setting position of the vibration receiving device on a straight line where a line between the vibration application position and the vibration receiving device is located according to the distance size relationship.

[0031] By adjusting the setting position of the vibration receiving device on the straight line where the line between the vibration application position and the vibration receiving device is located, the setting position of the vibration receiving device can be conveniently referenced and adjusted.

[0032] Further, the straight line where the line between the vibration application position and the vibration receiving device is located is perpendicular to the optical cable routing.

[0033] Vertically adjusting the position of the vibration receiving device can facilitate the standardization of the detection operation process and improve the detection efficiency.

[0034] In a second aspect, the application provides an optical cable buried depth detection system, which comprises:

[0035] a vibration position positioning module, configured to determine a vibration application position according to an optical cable routing of an optical cable to be measured, and apply a detection vibration at the vibration application position; the vibration application position is located directly above the optical cable routing;

[0036] a first data acquisition module, configured to collect first vibration data formed by the detection vibration in the optical cable to be measured corresponding to the vibration application position by accessing a distributed optical fiber sensing device of the optical cable to be measured;

[0037] a second data acquisition module, configured to collect second vibration data formed by the detection vibration on the ground by a vibration receiving device; the vibration receiving device is arranged at a ground position at a certain horizontal distance from the vibration application position;

[0038] a data alignment module, configured to align the first vibration data and the second vibration data according to time information in the first vibration data and the second vibration data.

[0039] a data calculation module for judging whether the take-off time points of the aligned first vibration data and second vibration data coincide;

[0040] if the time points coincide, taking the horizontal distance between the vibration receiving device and the vibration applying position as the burial depth of the optical cable to be measured;

[0041] if the time points do not coincide, adjusting the setting position of the vibration receiving device, reapplying detection vibration according to the horizontal distance between the adjusted setting position of the vibration receiving device and the vibration applying position, and obtaining the burial depth of the optical cable to be measured.

[0042] In a fourth aspect, the present application provides a computer storage medium having a computer program stored thereon, wherein the computer program is executed to implement the optical cable burial depth detection method in the first aspect.

[0043] Compared with the prior art, the present application has the following beneficial effects:

[0044] 1. The present application obtains a vibration applying position above the optical cable to be measured, sets a vibration receiving device capable of detecting vibration and uploading at a ground position at a certain horizontal distance from the vibration applying position, applies detection vibration at the vibration applying position by using the principle of vibration propagation, collects first vibration data and second vibration data corresponding to the detection vibration through the optical cable to be measured and the vibration receiving device respectively, and obtains the burial depth of the corresponding position of the optical cable to be measured according to the take-off time points of the aligned first vibration data and second vibration data and in combination with the setting position of the vibration receiving device.

[0045] 2. The present application uses the principle of vibration to detect vibration data from two directions of the ground and the bottom of the ground through the vibration receiving device and the optical cable to be measured, adjusts the setting position of the vibration receiving device on the ground to make the second vibration data obtained by the vibration receiving device correspond to and match the first vibration data received by the optical cable to be measured, so that the distances from the vibration applying position to the vibration receiving device and the optical cable to be measured are equal, and the horizontal distance from the vibration applying position on the ground to the vibration receiving device can be directly measured. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 A flow chart of the steps of the detection method of the present application.

[0047] Figure 2 A system structure diagram of the detection system of the present application.

[0048] Figure 3 A take-off time point diagram of the aligned first vibration data and second vibration data of the present application.

[0049] Figure 4 A device structure diagram of the electronic device of the present application.

[0050] The figure caption: vibration position positioning module 11, first data acquisition module 12, second data acquisition module 13, data alignment module 14, data calculation module 15, memory 21, processor 22, bus 23, communication interface 24. DETAILED DESCRIPTION

[0051] The drawings of the present application are only used for illustrative description, and cannot be understood as the limitation of the present application. In order to better illustrate the following embodiments, some components of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures in the drawings and their descriptions can be omitted.

[0052] In order to enable the person skilled in the art to better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0053] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0054] Embodiment 1

[0055] With the continuous development and popularization of optical fiber technology, optical fiber technology is applied to various fields, thereby leading to the continuous increase in the number of optical cable laying. In order to ensure the normal operation of the optical cable, it is necessary to regularly maintain and manage the optical cable, but the maintenance and management of the optical cable faces many technical challenges, one of which is the burial depth of the optical cable. At present, most optical cables are buried underground. By burying the optical cable underground, the optical cable is protected from damage from the outside world and the stability of signal transmission is ensured, but burying the optical cable underground makes it difficult to determine the burial depth of the optical cable, thereby increasing the difficulty of maintaining the optical cable.

[0056] The traditional detection of the burial depth of the optical cable mainly uses an optical cable burial depth detection device to emit an electromagnetic wave pulse radar to the ground to detect underground metal or circular long strip objects. When a metal or circular long strip object is detected, a reflected signal is reflected back to the receiver. The receiver calculates the depth of the directly buried optical cable after receiving the signal.

[0057] The traditional optical cable burial depth detection device described above uses a metal or circular long strip object as a judgment standard, and it is difficult to directly obtain the burial depth of the optical cable. At the same time, when other metal or circular long strip objects are buried in the land, the traditional optical cable burial depth detection device is prone to misjudgment, resulting in low accuracy. In addition, the traditional optical cable burial depth detection device needs to have a transmitter that emits an electromagnetic wave pulse radar, and also needs to have a corresponding receiver, which leads to a complex structure of the traditional optical cable burial depth detection device, and the corresponding operation is more complex, and the production cost is also higher. Moreover, the traditional optical cable burial depth detection device needs to be moved multiple times at a certain angle for detection, which is difficult to operate and takes a long time.

[0058] The embodiment provides a technical solution that can solve the above problems. The specific embodiments of the application will be described in detail below with reference to the accompanying drawings.

[0059] As shown in Figure 1 The embodiment provides an optical cable burial depth detection method, which comprises:

[0060] S1: determining a vibration application position according to the optical cable routing of the optical cable to be detected, and applying a detection vibration at the vibration application position;

[0061] In the embodiment, the detection vibration can be a vibration of a certain preset frequency. By applying a vibration of a certain preset frequency as the detection vibration, the corresponding information of the detection vibration can be extracted more conveniently.

[0062] Specifically, in a preferred embodiment of the embodiment, the detection vibration can be generated by knocking on the ground. The corresponding device and operation are simple, and only a knocking tool such as a rubber hammer is needed to realize the application of the detection vibration.

[0063] Further, in the embodiment, in order to ensure the accuracy of the detection of the optical cable burial depth, the vibration application position is located directly above the optical cable route;

[0064] The vibration application position can be obtained by specifically comprising:

[0065] In the direction intersecting the optical cable route of the optical cable to be detected, a plurality of ground positions are respectively applied with positioning vibration, and the vibration intensity of each positioning vibration is collected by the distributed optical fiber sensing device connected to the optical cable to be detected, and the positioning vibration with the maximum vibration intensity is taken as the vibration application position.

[0066] In the vibration propagation process, as the vibration propagation distance increases, the vibration intensity will decrease accordingly, and at a certain position point on the optical cable to be detected, the positioning vibration with the maximum vibration intensity is detected, indicating that the vibration attenuation of the positioning vibration is the smallest, indicating that the straight-line distance between the ground position of the positioning vibration and the corresponding position point of the optical cable to be detected is the shortest, and indicating that the ground position is located directly above the optical cable route. The positioning of the vibration application position can be determined by the distributed optical fiber sensing device connected to the optical cable to be detected without the need for additional equipment, and the operation is simple and convenient, which improves the detection efficiency and reduces the operation cost.

[0067] The distributed optical fiber sensing device can include but is not limited to DVS (Distributed Optical Fiber Vibration Sensing System), DAS (Distributed Optical Fiber Audio Sensing System) and the like; in a preferred embodiment of the embodiment, the distributed optical fiber sensing device is set as DAS, which can directly detect the detection vibration and form the first vibration data.

[0068] In the embodiment, the positioning vibration can be a vibration with a certain preset amplitude, and by applying a vibration with a certain preset amplitude as the positioning vibration, the amplitude of the applied positioning vibration is ensured to be the same, which can more conveniently obtain the ground position of the positioning vibration with the maximum vibration intensity; wherein the positioning vibration can be generated by a vibration generating device capable of generating vibrations with the same amplitude in the prior art.

[0069] S2: Collecting, by the distributed optical fiber sensing device connected to the optical cable to be detected, the first vibration data formed by the detection vibration corresponding to the vibration application position in the optical cable to be detected;

[0070] According to the propagation principle of the vibration, the detection vibration is propagated to the surroundings, and the detection vibration is received by the to-be-measured optical cable buried underground in the process of propagation. In the embodiment, the position point of the to-be-measured optical cable corresponding to the vibration application position is further acquired by the distributed optical fiber sensing device in the process of acquiring the vibration application position in step S1. The distance from the vibration application position to the position point is the shortest distance from the vibration application position to the to-be-measured optical cable, that is, the burial depth of the to-be-measured optical cable. The to-be-measured optical cable receives and processes the first vibration data by the distributed optical fiber sensing device connected to the to-be-measured optical cable after receiving the detection vibration.

[0071] S3: collecting second vibration data formed by the detection vibration on the ground by a vibration receiving device; the vibration receiving device is arranged at a ground position with a certain horizontal distance from the vibration application position;

[0072] In the embodiment, since the propagation direction of the detection vibration is to propagate to the surroundings, the detection vibration not only propagates downward but also propagates horizontally along the ground direction in the process of propagation. Therefore, the vibration receiving device arranged at a ground position with a certain horizontal distance from the vibration application position can receive the detection vibration and form the second vibration data.

[0073] In a preferred embodiment of the embodiment, the vibration receiving device can include a vibration collecting unit, a data processing unit and a data uploading unit. The vibration collecting unit is used to collect the second vibration data. The data processing unit is used to process the second vibration data, so that the device can directly identify and display the second vibration data. The data uploading unit is used to upload the processed second vibration data. It can be understood that, in the embodiment, the vibration receiving device only needs to receive the detection vibration and upload. Therefore, the structure of the vibration receiving device in the embodiment is very simple, thereby reducing the production and use cost of the device.

[0074] S4: aligning the first vibration data and the second vibration data according to the time information in the first vibration data and the second vibration data;

[0075] Specifically, in the embodiment, the alignment is specifically that, according to the time information in the first vibration data and the second vibration data, the first vibration data and the second vibration data are arranged on the same time axis. The time axis can clearly acquire the sequence of the first vibration data and the second vibration data.

[0076] In the embodiment, the depth of the optical cable to be detected is determined by comparing the first vibration data detected by the distributed optical fiber sensing device and the second vibration data detected by the vibration receiving device. In order to better compare the first vibration data and the second vibration data, the first vibration data and the second vibration data need to be put on the same reference, that is, the first vibration data and the second vibration data need to be aligned. According to the related principle formula of vibration propagation, the data related to vibration includes the propagation speed and the propagation time of vibration. The propagation speed of vibration needs to be measured additionally. Therefore, in the embodiment, the time information is used as the alignment basis of the first vibration data and the second vibration data.

[0077] The time information in the first vibration data and the second vibration data can be generated by a time synchronization device.

[0078] The time synchronization device is configured in the distributed optical fiber sensing device and the vibration receiving device to generate the corresponding time information. The vibration receiving device can operate and detect separately from the distributed optical fiber sensing device. The vibration receiving device only needs to upload the detected second vibration data, reduces the data interaction process, and improves the detection efficiency.

[0079] In a preferred embodiment of the embodiment, the time synchronization device includes a GPS unit. The GPS unit has a simple structure and can effectively obtain millisecond-level positioning time. On the premise of ensuring positioning accuracy, the cost of the device is reduced.

[0080] S5: Determine whether the take-off time points of the aligned first vibration data and second vibration data coincide.

[0081] If the take-off time points coincide, the horizontal distance between the vibration receiving device and the vibration application position is used as the depth of the optical cable to be detected.

[0082] If the take-off time points do not coincide, the setting position of the vibration receiving device is adjusted. According to the horizontal distance between the adjusted setting position of the vibration receiving device and the vibration application position, the detection vibration is re-applied and the depth of the optical cable to be detected is obtained.

[0083] In the embodiment, the take-off time point represents the time point at which the detection vibration is received. As shown in FIG. 6, the first vibration data and the second vibration data are restored to the vibration intensity of the corresponding detection vibration, and the vibration intensity is displayed by a waveform. The waveform corresponding to the detection vibration appears at the time point at which the detection vibration is received. Figure 3 ​

[0084] According to the propagation principle of vibration, vibration usually spreads around the vibration source, and the vibration propagation speed can be approximately equal within a certain small distance range if the transmission medium is the same. It can be understood that the vibration receiving device is arranged on the ground, and the to-be-measured optical cable is buried underground, so the propagation medium of the detection vibration to the vibration receiving device and the to-be-measured optical cable is the same, that is, the ground, and it can be understood that the propagation speed of the detection vibration to the vibration receiving device and the to-be-measured optical cable is the same.

[0085] In the embodiment, since the first vibration data and the second vibration data are aligned in the same time axis, and the propagation speed of the detection vibration is the same, the time information in the first vibration data and the second vibration data actually reflects the distance from the vibration application position to the to-be-measured optical cable and the vibration receiving device respectively, so the depth of the to-be-measured optical cable is obtained according to the take-off time point of the aligned first vibration data and second vibration data, and the horizontal distance between the vibration receiving device and the vibration application position. Specifically:

[0086] If the take-off time points of the aligned first vibration data and second vibration data coincide, the horizontal distance between the vibration receiving device and the vibration application position is taken as the depth of the to-be-measured optical cable.

[0087] The to-be-measured optical cable is arranged below the ground, and the shortest distance from the vibration application position to the to-be-measured optical cable, that is, the depth, is difficult to measure, but in the embodiment, if the take-off time points of the aligned first vibration data and second vibration data coincide, the vertical distance from the vibration application position to the to-be-measured optical cable is the same as the horizontal distance from the vibration application position to the vibration receiving device under the premise that the vibration propagation speed is the same, and since the vibration application position and the vibration receiving device are both on the ground, the horizontal distance from the vibration application position to the vibration receiving device can be measured as the shortest distance from the vibration application position to the to-be-measured optical cable, that is, the depth of the to-be-measured optical cable. In the embodiment, it is not necessary to measure the propagation speed of the vibration, the calculation steps are simple and accurate, and the efficiency of the to-be-measured optical cable depth detection calculation is effectively improved.

[0088] Further, if the take-off times of the aligned first vibration data and second vibration data do not coincide, the setting position of the vibration receiving device is adjusted according to the take-off time points of the first vibration data and the second vibration data, and the detection vibration is re-applied until a certain setting position is found, so that the first vibration data and the second vibration data coincide with the take-off time of the re-applied detection vibration.

[0089] Specifically, when the take-off time points do not coincide, it indicates that the shortest distances from the vibration application position to the to-be-measured optical cable and the vibration receiving device respectively are not equal. Since the vibration receiving device is arranged on the ground, the vibration receiving device can be used as a ruler for measuring the burial depth of the to-be-measured optical cable. The setting position of the vibration receiving device is adjusted so that the take-off time points of the first vibration data and the second vibration data coincide.

[0090] When the take-off time points do not coincide, the take-off time points of the first vibration data and the second vibration data have a chronological relationship, and there is a certain time difference between the take-off time points. In this embodiment, the vibration receiving device can be adjusted in the following manner:

[0091] The time difference of the take-off time points of the first vibration data and the second vibration data is obtained, the distance size relationship from the vibration application position to the vibration receiving device and the to-be-measured optical cable is obtained according to the time difference, and the setting position of the vibration receiving device is adjusted according to the distance size relationship.

[0092] Specifically, under the premise that the take-off time points do not coincide, the time difference mainly includes two cases. In a first case, the take-off time point of the first vibration data is before the take-off time point of the second vibration data, which indicates that the shortest distance from the vibration application position to the to-be-measured optical cable is smaller than the horizontal distance from the vibration application position to the vibration receiving device. Therefore, the setting position of the vibration receiving device needs to be adaptively adjusted so that the vibration receiving device is closer to the vibration application position.

[0093] In a second case, the take-off time point of the first vibration data is after the take-off time point of the second vibration data, which indicates that the shortest distance from the vibration application position to the to-be-measured optical cable is greater than the horizontal distance from the vibration application position to the vibration receiving device. Therefore, the setting position of the vibration receiving device needs to be adaptively adjusted so that the vibration receiving device is away from the vibration application position.

[0094] In the above adjustment process, the vibration application position also continuously applies the detection vibration, so that the take-off time point of the second vibration data can be continuously updated until the setting position that makes the take-off time points of the first vibration data and the second vibration data coincide is found.

[0095] In a specific implementation of the embodiment, the first setting position of the vibration receiving device can also be as close to the vibration applying position as possible, then the setting position of the vibration receiving device is adjusted away from the vibration applying position, and whether the take-off time point of the second vibration data coincides with the take-off time point of the first vibration data is determined through continuous knocking, and the vibration receiving device is stopped adjusting when the coincidence occurs.

[0096] Further, in the embodiment, the adjustment of the setting position of the vibration receiving device can specifically include adjusting the setting position of the vibration receiving device on a straight line where the line between the vibration applying position and the vibration receiving device is located according to the distance size relationship.

[0097] The line between the first setting position of the vibration receiving device and the vibration applying position can be used as a reference to more conveniently adjust the vibration receiving device, and further facilitate the measurement of the horizontal distance between the vibration receiving device and the vibration applying position, and reduce other parameters.

[0098] In a preferred implementation of the embodiment, in order to standardize the operation on site and better achieve the measurement of the horizontal distance between the vibration receiving device and the vibration applying position and the application of the detection vibration, the straight line where the line between the vibration applying position and the vibration receiving device is located is perpendicular to the optical cable route.

[0099] The embodiment receives the detection vibration applied on the ground directly above the to-be-measured optical cable together with the to-be-measured optical cable through the vibration receiving device arranged on the ground, compares the second vibration data received by the vibration receiving device with the first vibration data received by the to-be-measured optical cable, compares the take-off time points, takes the vibration receiving device arranged on the ground as a measuring scale, finds the setting position of the vibration receiving device that makes the take-off time points of the first vibration data and the second vibration data coincide, and then measures the horizontal distance from the vibration receiving device to the vibration applying position as the burial depth of the to-be-measured optical cable at the corresponding position. The embodiment does not need to measure the propagation speed of vibration, but only needs a vibration receiving device that can detect ground vibration and upload corresponding vibration data and time information to complete the measurement, and the operation steps of the measurement are simple and clear, which greatly improves the efficiency of the burial depth detection of the to-be-measured optical cable, and effectively reduces the equipment and operation cost of the detection.

[0100] Embodiment 2

[0101] The embodiment and the embodiment 1 are based on the same inventive concept, and the differences between them are as follows: Figure 2As shown, the embodiment provides a buried depth detection system of an optical cable, which comprises:

[0102] a vibration position positioning module 11, configured to determine a vibration application position according to an optical cable routing of the optical cable to be detected, and apply a detection vibration at the vibration application position; the vibration application position is directly above the optical cable routing;

[0103] In the embodiment, the detection vibration can be a vibration of a preset frequency. By applying a vibration of a preset frequency as the detection vibration, the corresponding information of the detection vibration can be extracted more conveniently.

[0104] Specifically, in a preferred embodiment of the embodiment, the detection vibration can be generated by knocking on the ground. The corresponding equipment and operation are simple, and only a knocking tool such as a rubber hammer is needed to realize the application of the detection vibration.

[0105] Further, in the embodiment, in order to ensure the accuracy of the detection of the buried depth of the optical cable, the vibration application position is directly above the optical cable routing.

[0106] The acquisition of the vibration application position can specifically include:

[0107] In the direction intersecting the optical cable routing of the optical cable to be detected, a positioning vibration is applied to each ground position, the vibration intensity of each positioning vibration is collected by a distributed optical fiber sensing device connected to the optical cable to be detected, and the positioning vibration with the maximum vibration intensity is taken as the vibration application position.

[0108] In the vibration propagation process, as the vibration propagation distance increases, the vibration intensity will decrease accordingly. Therefore, at a certain position point on the optical cable to be detected, the positioning vibration with the maximum vibration intensity is detected, which indicates that the vibration attenuation of the positioning vibration is the smallest, the straight-line distance between the ground position of the positioning vibration and the corresponding position point of the optical cable to be detected is the shortest, and the ground position is directly above the optical cable routing. The positioning and determination of the vibration application position can be completed by the distributed optical fiber sensing device connected to the optical cable to be detected without additional equipment, and the operation is simple and convenient, which improves the detection efficiency and reduces the operation cost.

[0109] The distributed optical fiber sensing device can include but is not limited to a DVS (Distributed Optical Fiber Vibration Sensing System), a DAS (Distributed Optical Fiber Audio Sensing System), and the like; in a preferred embodiment of the present embodiment, the distributed optical fiber sensing device is set as a DAS, which can directly detect the detection vibration and form the first vibration data.

[0110] In the present embodiment, the positioning vibration can be a vibration with a certain preset amplitude. By applying a vibration with a certain preset amplitude as the positioning vibration, the amplitude of the applied positioning vibration is ensured to be the same, and the ground position of the positioning vibration with the maximum vibration intensity can be more conveniently obtained; wherein the positioning vibration can be generated by a vibration generating device capable of generating vibrations with the same amplitude in the prior art.

[0111] The first data acquisition module 12 is configured to collect first vibration data formed by the detection vibration in the optical cable to be measured through a distributed optical fiber sensing device connected to the optical cable to be measured;

[0112] According to the propagation principle of vibration, the detection vibration propagates to the surrounding, and the detection vibration is received by the optical cable to be measured buried underground in the process of propagation. In the present embodiment, in the process of acquiring the vibration application position by the vibration position positioning module 11, the position point corresponding to the vibration application position of the optical cable to be measured can be further acquired by the distributed optical fiber sensing device. The distance from the vibration application position to the position point is the shortest distance from the vibration application position to the optical cable to be measured, that is, the burial depth of the optical cable to be measured. After receiving the detection vibration, the optical cable to be measured is received and processed by the distributed optical fiber sensing device connected to the optical cable to be measured to form the first vibration data.

[0113] The second data acquisition module 13 is configured to collect second vibration data formed by the detection vibration on the ground through a vibration receiving device; the vibration receiving device is arranged at a ground position with a certain horizontal distance from the vibration application position;

[0114] In the present embodiment, since the propagation direction of the detection vibration is to propagate to the surrounding, the detection vibration not only propagates downward but also propagates along the ground direction in the process of propagation, so that the vibration receiving device arranged at a ground position with a certain horizontal distance from the vibration application position can receive and form the second vibration data.

[0115] In a preferred embodiment of the present embodiment, the vibration receiving device can include a vibration collection unit, a data processing unit and a data uploading unit, the vibration collection unit is used to collect the second vibration data, the data processing unit is used to process the second vibration data, so that the device can directly identify and display the second vibration data, and the data uploading unit is used to upload the processed second vibration data. It can be understood that in the present embodiment, the vibration receiving device only needs to receive the detection vibration and upload, so the structure of the vibration receiving device of the present embodiment is very simple, thereby reducing the production and use cost of the device.

[0116] The data alignment module 14 is configured to align the first vibration data and the second vibration data according to time information in the first vibration data and the second vibration data.

[0117] Specifically, in the present embodiment, the alignment is specifically that the first vibration data and the second vibration data are arranged on the same time axis according to the time information in the first vibration data and the second vibration data, and the sequence of the first vibration data and the second vibration data can be clearly obtained through the time axis.

[0118] In the present embodiment, the depth of the to-be-detected optical cable is determined by comparing the first vibration data detected by the distributed optical fiber sensing device and the second vibration data detected by the vibration receiving device. In order to better compare the first vibration data and the second vibration data, the first vibration data and the second vibration data need to be placed on the same reference, that is, the first vibration data and the second vibration data need to be aligned. According to the related principle formula of vibration propagation, the data related to vibration includes the propagation speed and propagation time of vibration, and the propagation speed of vibration needs to be measured additionally. Therefore, in the present embodiment, the time information is used as the alignment basis of the first vibration data and the second vibration data.

[0119] The time information in the first vibration data and the second vibration data can be generated by a time synchronization device, and the time synchronization device is configured in the distributed optical fiber sensing device and the vibration receiving device.

[0120] The time synchronization device is configured in the distributed optical fiber sensing device and the vibration receiving device to generate corresponding time information, so that the vibration receiving device can operate and detect separately from the distributed optical fiber sensing device. The vibration receiving device only needs to upload the detected second vibration data, reduces the data interaction process, and improves the detection efficiency.

[0121] In a preferred embodiment of the present embodiment, the time synchronization device comprises a GPS unit, which is simple in structure and can effectively obtain a positioning time at a millisecond level, thereby reducing the cost of the device while ensuring positioning accuracy.

[0122] The data calculation module 15,

[0123] determining whether the take-off time points of the aligned first vibration data and second vibration data coincide;

[0124] If they coincide, the horizontal distance between the vibration receiving device and the vibration application position is taken as the burial depth of the optical cable to be measured.

[0125] If they do not coincide, the setting position of the vibration receiving device is adjusted, and the horizontal distance between the vibration receiving device and the vibration application position is re-applied to detect vibration and obtain the burial depth of the optical cable to be measured.

[0126] In the present embodiment, the take-off time point refers to the time point at which the detection vibration is received, and Figure 3 the first vibration data and the second vibration data are restored to the vibration intensity of the corresponding detection vibration, and the vibration intensity is displayed in a waveform. At the time point at which the detection vibration is received, the waveform corresponding to the detection vibration appears.

[0127] According to the propagation principle of vibration, vibration generally propagates around the vibration source. Within a certain small distance range, if the transmission medium is the same, the vibration propagation speed can be approximately equal. Understandably, the vibration receiving device is set on the ground, and the optical cable to be measured is buried underground, so the propagation medium of the detection vibration to the vibration receiving device and the optical cable to be measured is the same, i.e., the ground. Understandably, the propagation speed of the detection vibration to the vibration receiving device and the optical cable to be measured is the same.

[0128] In the present embodiment, since the first vibration data and the second vibration data are aligned in the same time axis, and the propagation speed of the detection vibration is the same, the time information in the first vibration data and the second vibration data actually reflects the distance from the vibration application position to the optical cable to be measured and the vibration receiving device, respectively. Therefore, the burial depth of the optical cable to be measured is obtained according to the take-off time points of the aligned first vibration data and second vibration data, and the horizontal distance between the vibration receiving device and the vibration application position. Specifically,

[0129] If the take-off time points of the aligned first vibration data and second vibration data coincide, the horizontal distance between the vibration receiving device and the vibration application position is taken as the burial depth of the optical cable to be measured.

[0130] The to-be-tested optical cable is arranged below the ground, and the shortest distance from the vibration applying position to the to-be-tested optical cable, i.e., the burial depth, is difficult to measure. In the embodiment, the takeoff time points of the first vibration data and the second vibration data after alignment coincide, and under the premise that the vibration propagation speeds are the same, the vertical distance from the vibration applying position to the to-be-tested optical cable at this time is the same as the horizontal distance from the vibration applying position to the vibration receiving device, and since the vibration applying position and the vibration receiving device are both located on the ground, the horizontal distance from the vibration applying position to the vibration receiving device can be measured as the shortest distance from the vibration applying position to the to-be-tested optical cable, i.e., the burial depth of the to-be-tested optical cable. In the embodiment, the vibration propagation speed does not need to be measured, the calculation is simple and accurate, and the efficiency of the to-be-tested optical cable burial depth detection calculation is effectively improved.

[0131] Further, the takeoff times of the first vibration data and the second vibration data after alignment do not coincide, and according to the takeoff time points of the first vibration data and the second vibration data, the setting position of the vibration receiving device is adjusted and the detection vibration is re-applied until a certain setting position is found, so that the first vibration data and the second vibration data coincide with the takeoff times of the re-applied detection vibration.

[0132] Specifically, when the takeoff time points do not coincide, it indicates that the shortest distances from the vibration applying position to the to-be-tested optical cable and the vibration receiving device are not equal. Since the vibration receiving device is arranged on the ground, the vibration receiving device can be used as a ruler for measuring the burial depth of the to-be-tested optical cable, and the setting position of the vibration receiving device is adjusted so that the takeoff time points of the first vibration data and the second vibration data coincide.

[0133] When the takeoff time points do not coincide, the takeoff time points of the first vibration data and the second vibration data have a chronological relationship, and there is a certain time difference between the takeoff time points of the two, and in the embodiment, the vibration receiving device can be adjusted in the following manner:

[0134] The time difference of the takeoff time points of the first vibration data and the second vibration data is obtained, the distance size relationship from the vibration applying position to the vibration receiving device and the to-be-tested optical cable is obtained according to the time difference, and the setting position of the vibration receiving device is adjusted according to the distance size relationship.

[0135] Specifically, in the case that the take-off time points do not coincide, the time difference mainly includes two cases: in the first case, the take-off time point of the first vibration data is before the take-off time point of the second vibration data, which means that the shortest distance from the vibration application position to the optical cable to be tested is less than the horizontal distance from the vibration application position to the vibration receiving device, and thus the setting position of the vibration receiving device needs to be adjusted to make the vibration receiving device closer to the vibration application position;

[0136] In the second case, the take-off time point of the first vibration data is after the take-off time point of the second vibration data, which means that the shortest distance from the vibration application position to the optical cable to be tested is greater than the horizontal distance from the vibration application position to the vibration receiving device, and thus the setting position of the vibration receiving device needs to be adjusted to make the vibration receiving device farther away from the vibration application position.

[0137] In the above adjustment process, the vibration application position also continuously applies the detection vibration, so that the take-off time point of the second vibration data can be continuously updated until the setting position is found, at which the take-off time points of the first vibration data and the second vibration data coincide.

[0138] In a specific embodiment of the present embodiment, the first setting position of the vibration receiving device can also be as close to the vibration application position as possible, and then the setting position of the vibration receiving device is continuously adjusted to be farther away from the vibration application position, and whether the take-off time point of the second vibration data coincides with the take-off time point of the first vibration data is determined by continuous knocking. If the coincidence occurs, the adjustment of the vibration receiving device is stopped.

[0139] Further, in the present embodiment, the adjustment of the setting position of the vibration receiving device can specifically include: adjusting the setting position of the vibration receiving device on the straight line where the line between the vibration application position and the vibration receiving device is located according to the distance size relationship.

[0140] The first setting of the line between the setting position of the vibration receiving device and the vibration application position can take the straight line where the line is located as a reference to more conveniently realize the adjustment of the vibration receiving device, and further facilitate the measurement of the horizontal distance between the vibration receiving device and the vibration application position, and reduce other parameters.

[0141] In a preferred implementation of the embodiment, in order to regulate the operation of the site so as to better realize the measurement of the horizontal distance between the vibration receiving device and the vibration application position and the application of the detection vibration, a straight line in which a line between the vibration application position and the vibration receiving device is located is perpendicular to the optical cable route.

[0142] The embodiment receives the detection vibration applied on the ground directly above the optical cable to be measured by arranging a vibration receiving device on the ground, compares the second vibration data received by the vibration receiving device with the first vibration data received by the optical cable to be measured, compares the take-off time point, takes the vibration receiving device arranged on the ground as a measuring ruler, finds the arrangement position of the vibration receiving device at which the take-off time points of the first vibration data and the second vibration data coincide, and then measures the horizontal distance from the vibration receiving device to the vibration application position as the burial depth of the optical cable to be measured at the corresponding position. The embodiment does not need to measure the propagation speed of vibration, but only needs a vibration receiving device capable of detecting ground vibration and uploading corresponding vibration data and time information to complete the measurement, and the operation of the measurement is simple and clear, greatly improves the efficiency of the burial depth detection of the optical cable to be measured, and effectively reduces the equipment and operation cost of the detection.

[0143] Embodiment 3

[0144] As shown in Figure 4 The embodiment provides an electronic device, which includes a memory 21 and a processor 22, the memory 21 stores computer readable instructions, and the processor 22 executes the computer readable instructions to realize the optical cable burial depth detection method of the embodiment.

[0145] Preferably, the electronic device further includes a bus 23 and a communication interface 24, and the processor 22, the communication interface 24 and the memory 21 are connected through the bus 23.

[0146] The memory 21 can include a high-speed random access memory (RAM) and can also include a non-volatile memory, such as at least one disk memory. The communication between the system network element and at least one other network element is realized through at least one communication interface 24 (which can be wired or wireless), and the Internet, a wide area network, a local network, a metropolitan area network, etc. can be used. The bus 23 can be an ISA bus, a PCI bus, an EISA bus, etc. The bus 23 can be divided into an address bus, a data bus, a control bus, etc. (not completely drawn in the figure).

[0147] The processor 22 can be an integrated circuit chip with processing capability. In the specific implementation process, each step in the embodiments of the above method can be completed by the integrated logic circuit of hardware or the instruction in the form of software in the processor 22. The processor 22 described above can be a general processor, including a central processing unit (CPU), a network processor (NP), etc.; can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, which can realize or execute the disclosed methods, steps and logic block diagrams in the embodiments of the present application. The general processor can be a microprocessor or the processor 22 can also be any conventional processor 22, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as hardware decoding processor for execution, or executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register, etc. The storage medium in the art. The storage medium is located in the memory 21, and the processor 22 reads the information in the memory 21, and combines the hardware to complete the steps of the method in the above embodiments.

[0148] The embodiments of the present application also provide a computer readable storage medium, the computer readable storage medium stores computer executable instructions, when the computer executable instructions are called and executed by the processor 22, the computer executable instructions cause the processor 22 to realize the optical cable depth detection method described above, for specific implementation, please refer to the embodiments, and will not be repeated here.

[0149] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the parts of the present application that essentially contribute to the prior art or the parts of the technical solutions can be embodied in the form of software products. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the various embodiments of the present application. The aforementioned storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0150] Obviously, the above embodiments of the present application are only examples for clearly illustrating the technical solutions of the present application, and are not intended to limit the specific embodiments of the present application. Any modification, equivalent replacement, and improvement within the spirit and principles of the claims of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A method for detecting the buried depth of an optical cable, characterized in that: The method comprises: Determine a vibration application position according to the optical cable route of the optical cable to be tested, and apply a detection vibration at the vibration application position; the vibration application position is located directly above the optical cable route; collecting first vibration data generated by the detection vibration in the optical cable to be tested corresponding to the vibration application position in the optical cable to be tested by a distributed optical fiber sensing device connected to the optical cable to be tested; collecting second vibration data generated by the detection vibration on the ground through a vibration receiving device; the vibration receiving device is arranged at a ground position at a certain horizontal distance from the vibration application position; aligning the first vibration data and the second vibration data according to time information in the first vibration data and the second vibration data; Determining whether the start time points of the aligned first vibration data and the second vibration data coincide with each other; If they coincide, the horizontal distance between the vibration receiving device and the vibration application position is used as the buried depth of the optical cable to be tested; If they do not coincide, adjust the setting position of the vibration receiving device, and re-apply the detection vibration according to the horizontal distance between the adjusted setting position of the vibration receiving device and the vibration applying position to obtain the buried depth of the optical cable to be tested.

2. The method for detecting buried depth of optical cable according to claim 1, wherein: The step of determining the vibration application position according to the optical cable route of the optical cable to be tested specifically includes: In a direction intersecting the optical cable route of the optical cable to be tested, positioning vibrations are applied to several ground positions respectively, the vibration intensity of each positioning vibration is collected through the optical cable to be tested, and the positioning vibration with the largest vibration intensity is used as the vibration application position.

3. The method for detecting buried depth of optical cable according to claim 1, characterized in that: The time information is generated by a time synchronization device; both the distributed optical fiber sensing device and the vibration receiving device are equipped with the time synchronization device.

4. The method for detecting buried depth of optical cable according to claim 1, wherein: The step of adjusting the setting position of the vibration receiving device, and reapplying the detection vibration according to the horizontal distance between the adjusted setting position of the vibration receiving device and the vibration applying position and obtaining the buried depth of the optical cable to be tested specifically includes: According to the starting time points of the first vibration data and the second vibration data, the setting position of the vibration receiving device is adjusted and the detection vibration is reapplied until a setting position is found so that the first vibration data and the second vibration data coincide with the starting time points corresponding to the reapplying of the detection vibration.

5. The method for detecting buried depth of optical cable according to claim 4, characterized in that: The adjusting the setting position of the vibration receiving device according to the starting time points of the first vibration data and the second vibration data specifically includes: Obtain a time difference between the starting time points of the first vibration data and the second vibration data, obtain a distance relationship between the vibration application position and the vibration receiving device and the optical cable to be tested respectively based on the time difference, and adjust the setting position of the vibration receiving device based on the distance relationship.

6. The method for detecting buried depth of optical cable according to claim 5, characterized in that: The adjusting the setting position of the vibration receiving device according to the distance relationship specifically includes: According to the distance relationship, the setting position of the vibration receiving device is adjusted on the straight line where the connecting line between the vibration applying position and the vibration receiving device is located.

7. The method for detecting buried depth of optical cable according to any one of claims 1 to 6, characterized in that: The straight line connecting the vibration applying position and the vibration receiving device is perpendicular to the optical cable route.

8. An optical cable buried depth detection system, characterized in that: The detection system comprises: a vibration position positioning module, configured to determine a vibration application position according to an optical cable route of the optical cable to be tested, and apply a detection vibration at the vibration application position; the vibration application position is located directly above the optical cable route; a first data acquisition module, which collects first vibration data generated by the detection vibration in the optical cable to be tested and corresponding to the vibration application position in the optical cable to be tested, by accessing a distributed optical fiber sensing device of the optical cable to be tested; a second data acquisition module, configured to collect second vibration data generated on the ground by the detection vibration through a vibration receiving device, wherein the vibration receiving device is disposed at a ground position at a certain horizontal distance from the vibration application position; a data alignment module, configured to align the first vibration data and the second vibration data according to time information in the first vibration data and the second vibration data; A data calculation module, configured to determine whether the start time points of the aligned first vibration data and the second vibration data coincide with each other; If they coincide, the horizontal distance between the vibration receiving device and the vibration application position is used as the buried depth of the optical cable to be tested; If they do not coincide, adjust the setting position of the vibration receiving device, and re-apply the detection vibration according to the horizontal distance between the adjusted setting position of the vibration receiving device and the vibration applying position to obtain the buried depth of the optical cable to be tested.

9. An electronic device comprising a memory and a processor, characterized in that: The memory stores computer-readable instructions, and the processor executes the computer-readable instructions to implement the optical cable buried depth detection method according to any one of claims 1 to 7.

10. A computer storage medium, characterized in that A computer program is stored thereon, and when the computer program is executed, the method for detecting the buried depth of an optical cable according to any one of claims 1 to 7 is implemented.

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