CN116760466B - Optical cable positioning method and system - Google Patents
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- 238000005070 sampling Methods 0.000 claims abstract description 84
- 238000009432 framing Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000004364 calculation method Methods 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims description 13
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0791—Fault location on the transmission path
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application relates to the technical field of optical cable communication, and discloses an optical cable positioning method and an optical cable positioning system, wherein the method comprises the following steps: acquiring a vibration signal of an optical cable, and carrying out framing buffer processing on the vibration signal to obtain framing signals with preset buffer size; according to a preset vibration threshold coefficient, performing vibration threshold calculation on each frame-divided signal with the buffer size to obtain a corresponding vibration threshold; comparing the vibration signal of each sampling point with a vibration threshold value, and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration signal of the sampling point exceeds the vibration threshold value; and according to the effective positioning signals, positioning the sampling points to determine the position of the optical cable. According to the method and the device, the corresponding vibration threshold value can be calculated in a self-adaptive mode according to the vibration signals of each sampling point, whether the vibration signals are effective or not is judged according to the vibration threshold value, and further the judgment of the signals can be determined according to the vibration signals in real time, so that the limitation caused by the fixed threshold value is avoided, and the test effect is effectively improved.
Description
Technical Field
The application relates to the technical field of optical cable communication, in particular to an optical cable positioning method and system.
Background
The current optical cable demand increases day by day, the optical cable is expanded to the maximum 2096 core from the previous single core, but the more the optical cable is buried, the more complicated the laying line is, and the greater the problem is, so that the target optical cable and the position often need to be found accurately in the optical cable construction.
The traditional optical cable positioning method is to artificially determine a fixed threshold value of a vibration signal according to a construction environment, and then judge and screen the amplitude of the vibration signal of the optical cable according to the fixed threshold value to determine the position of the optical cable. However, because the surrounding environment of the optical cable is complex and changeable, the vibration knocking position is often interfered, and then the vibration knocking position is judged through a fixed threshold value, so that the test effect is poor, the false alarm rate is high, and in different construction environments, the threshold value is required to be reset again according to the field environment, so that the scene adaptability is required to be improved.
Disclosure of Invention
The embodiment of the application provides an optical cable positioning method and system, which are used for solving the technical problems in the prior art.
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of an embodiment of the present application, there is provided a method for positioning an optical cable.
In one embodiment, the fiber optic cable positioning method includes:
obtaining a vibration signal of each sampling point preset by an optical cable, and carrying out framing buffer processing on the vibration signal to obtain framing signals with preset buffer sizes;
according to a preset vibration threshold coefficient, performing vibration threshold calculation on each frame-divided signal with the buffer size to obtain a corresponding vibration threshold;
comparing the vibration signal of each sampling point with the vibration threshold value, and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration signal of the sampling point exceeds the vibration threshold value;
and positioning the sampling point according to the effective positioning signal to determine the position of the optical cable.
In one embodiment, acquiring a vibration signal for each sampling point preset for the fiber optic cable includes: continuously knocking each sampling point preset in the optical cable according to a preset knocking frequency, and collecting vibration signals of each sampling point during knocking to obtain the vibration signals of each sampling point preset in the optical cable.
In one embodiment, the predetermined buffer size is 5 frames.
In one embodiment, according to a preset vibration threshold coefficient, performing vibration threshold calculation on the framing signal of each buffer size to obtain a corresponding vibration threshold includes: accumulating and averaging the vibration signal arrays with the size of each buffer to obtain an average value array; traversing the average value according to the preset pane length, and selecting the average value with the largest value as a threshold value array; and multiplying the threshold value array by a preset vibration threshold value coefficient to obtain a corresponding vibration threshold value. The pane length is determined according to a fault tolerance distance and a tapping point distance (the distance unit m between each point is included in vibration signal data), and the fault tolerance distance is converted into a signal point number (generally set to 50 meters and used for judging that the vibration event is triggered to be the same event in a set range) according to the tapping point distance; the calculation formula of the pane length is: s= (fault tolerance distance/tap point spacing)/2.
In one embodiment, comparing the vibration signal of each sampling point with the vibration threshold value, and determining the vibration signal as an effective positioning signal when the vibration signal of the sampling point exceeds the vibration threshold value as a result of the comparison includes: performing time domain conversion on the vibration signal of each sampling point and the vibration threshold value to obtain a corresponding time domain waveform curve; and comparing the time domain waveform curve of the vibration signal of each sampling point with the time domain waveform curve of the vibration threshold value, and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration amplitude of the vibration signal is larger than the vibration threshold value in the same time.
In one embodiment, performing sample point location determination to determine the cable location based on the effective location signal comprises: comparing the trigger frequency of the effective positioning signal of each sampling point with a preset knocking frequency; under the condition that the comparison result is that the trigger frequency of the effective positioning signal is larger than the preset knocking frequency, the effective positioning signal is used as a final positioning signal; and determining the sampling point corresponding to the final positioning signal as the optical cable position.
According to a second aspect of an embodiment of the present application, a fiber optic cable positioning system is provided.
In one embodiment, the fiber optic cable positioning system includes:
the signal processing module is used for acquiring a vibration signal of each sampling point preset by the optical cable, and carrying out framing buffer processing on the vibration signal to obtain framing signals with preset buffer sizes;
the self-adaptive threshold module is used for carrying out vibration threshold calculation on the framing signals with each buffer size according to a preset vibration threshold coefficient to obtain a corresponding vibration threshold;
the signal judging module is used for comparing the vibration signal of each sampling point with the vibration threshold value and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration signal of the sampling point exceeds the vibration threshold value;
and the signal positioning module is used for positioning sampling points according to the effective positioning signals to determine the position of the optical cable.
In one embodiment, when the signal processing module acquires the vibration signal of each sampling point preset by the optical cable, each sampling point preset by the optical cable is continuously knocked according to a preset knocking frequency, and the vibration signal of each sampling point during knocking is acquired to obtain the vibration signal of each sampling point preset by the optical cable.
In one embodiment, the predetermined buffer size is 5 frames.
In one embodiment, the adaptive threshold module calculates the vibration threshold of each buffer frame signal according to a preset vibration threshold coefficient, and when the corresponding vibration threshold is obtained, accumulates and averages the vibration signal arrays of each buffer frame to obtain an average value array; traversing the average value according to the preset pane length, and selecting the average value with the largest value as a threshold value array; and multiplying the threshold value array by a preset vibration threshold value coefficient to obtain a corresponding vibration threshold value. The pane length is determined according to a fault tolerance distance and a tapping point distance (the distance unit m between each point is included in vibration signal data), and the fault tolerance distance is converted into a signal point number (generally set to 50 meters and used for judging that the vibration event is triggered to be the same event in a set range) according to the tapping point distance; the calculation formula of the pane length is: s= (fault tolerance distance/tap point spacing)/2.
In one embodiment, the signal determination module compares the vibration signal of each sampling point with the vibration threshold value, and when the comparison result shows that the vibration signal of the sampling point exceeds the vibration threshold value, and determines that the vibration signal is an effective positioning signal, performs time domain conversion on the vibration signal of each sampling point and the vibration threshold value to obtain a corresponding time domain waveform curve; and comparing the time domain waveform curve of the vibration signal of each sampling point with the time domain waveform curve of the vibration threshold value, and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration amplitude of the vibration signal is larger than the vibration threshold value in the same time.
In one embodiment, the signal positioning module compares the trigger frequency of the effective positioning signal of each sampling point with a predetermined knocking frequency when the sampling point positioning is performed to determine the position of the optical cable according to the effective positioning signal; under the condition that the comparison result is that the trigger frequency of the effective positioning signal is larger than the preset knocking frequency, the effective positioning signal is used as a final positioning signal; and determining the sampling point corresponding to the final positioning signal as the optical cable position.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
according to the method and the device, the corresponding vibration threshold value can be calculated in a self-adaptive mode according to the vibration signals of each sampling point, whether the vibration signals are effective or not is judged according to the vibration threshold value, and further the judgment of the signals can be determined according to the vibration signals in real time, so that the limitation caused by the fixed threshold value is avoided, and the test effect is effectively improved.
In addition, the application filters the effective positioning signals through frequency filtering, avoids the influence of external interference on the effective signals, ensures the signals generated by knocking the effective signals, further improves the testing effect and reduces the false alarm rate.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a flow chart illustrating a method of fiber optic cable positioning according to an exemplary embodiment;
FIG. 2 is a block diagram of a fiber optic cable positioning system according to an exemplary embodiment;
fig. 3 is a schematic diagram of a computer device according to an exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments herein to enable those skilled in the art to practice them. Portions and features of some embodiments may be included in, or substituted for, those of others. The scope of the embodiments herein includes the full scope of the claims, as well as all available equivalents of the claims. The terms "first," "second," and the like herein are used merely to distinguish one element from another element and do not require or imply any actual relationship or order between the elements. Indeed the first element could also be termed a second element and vice versa. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure, apparatus, or device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such structure, apparatus, or device. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a structure, apparatus or device comprising the element. Various embodiments are described herein in a progressive manner, each embodiment focusing on differences from other embodiments, and identical and similar parts between the various embodiments are sufficient to be seen with each other.
The terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like herein refer to an orientation or positional relationship based on that shown in the drawings, merely for ease of description herein and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus are not to be construed as limiting the application. In the description herein, unless otherwise specified and limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanically or electrically coupled, may be in communication with each other within two elements, may be directly coupled, or may be indirectly coupled through an intermediary, as would be apparent to one of ordinary skill in the art.
Herein, unless otherwise indicated, the term "plurality" means two or more.
Herein, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
Herein, the term "and/or" is an association relation describing an object, meaning that three relations may exist. For example, a and/or B, represent: a or B, or, A and B.
It should be understood that, although the steps in the flowchart are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor does the order in which the sub-steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of other steps or other steps.
The various modules in the apparatus or system of the present application may be implemented in whole or in part in software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
Embodiments of the application and features of the embodiments may be combined with each other without conflict.
Fig. 1 shows one embodiment of a fiber optic cable positioning method of the present application.
In this alternative embodiment, the fiber optic cable positioning method includes:
step S101, obtaining vibration signals of each sampling point preset by an optical cable, and carrying out framing buffer processing on the vibration signals to obtain framing signals with preset buffer sizes;
step S103, according to a preset vibration threshold coefficient, performing vibration threshold calculation on the framing signals of each buffer size to obtain a corresponding vibration threshold;
step S105, comparing the vibration signal of each sampling point with the vibration threshold value, and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration signal of the sampling point exceeds the vibration threshold value;
and step S107, positioning sampling points according to the effective positioning signals to determine the position of the optical cable.
Fig. 2 illustrates one embodiment of a fiber optic cable positioning system of the present application.
In this alternative embodiment, the fiber optic cable positioning system includes:
the signal processing module 201 is configured to obtain a vibration signal of each sampling point preset by the optical cable, and perform frame buffer processing on the vibration signal to obtain a frame signal with a predetermined buffer size;
the adaptive threshold module 203 is configured to perform vibration threshold calculation on the frame signal of each buffer size according to a preset vibration threshold coefficient, so as to obtain a corresponding vibration threshold;
a signal determining module 205, configured to compare the vibration signal of each sampling point with the vibration threshold, and determine that the vibration signal of the sampling point is an effective positioning signal when the comparison result is that the vibration signal exceeds the vibration threshold;
and the signal positioning module 207 is used for positioning sampling points according to the effective positioning signals to determine the position of the optical cable.
When the vibration signal of each sampling point preset by the optical cable is obtained in specific application, continuous knocking can be carried out on each sampling point preset by the optical cable according to the preset knocking frequency, and the vibration signal of each sampling point during knocking is collected, so that the vibration signal of each sampling point preset by the optical cable is obtained. And the predetermined tap frequency may be 3 taps for 10 seconds. And when the vibration signal is subjected to framing buffer processing to obtain framing signals with preset buffer size, setting a buffer space according to the preset buffer size, and filling corresponding vibration signal data according to the buffer size. Such as: assuming a buffer size of 5, a queue first-in first-out principle, when new elements are added, a frame of data which enters the queue first is deleted more than 5.
When the vibration threshold value is calculated for each frame of buffer size signal according to the preset vibration threshold value coefficient to obtain the corresponding vibration threshold value, the vibration signal arrays of each buffer size can be accumulated and averaged to obtain an average value array; traversing the average value according to the preset pane length, and selecting the average value with the largest value as a threshold value array; and multiplying the threshold value array by a preset vibration threshold value coefficient to obtain a corresponding vibration threshold value. The pane length is determined according to a fault tolerance distance and a tapping point distance (the distance unit m between each point is included in vibration signal data), and the fault tolerance distance is converted into a signal point number (generally set to 50 meters and used for judging that the vibration event is triggered to be the same event in a set range) according to the tapping point distance; the calculation formula of the pane length is: s= (fault tolerance distance/tap point spacing)/2.
And after the vibration threshold value of the self-adaption of the vibration signal of each sampling point is determined, comparing the vibration signal of each sampling point with the vibration threshold value, and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration signal of the sampling point exceeds the vibration threshold value. Specific: performing time domain conversion on the vibration signal of each sampling point and the vibration threshold value to obtain a corresponding time domain waveform curve; and comparing the time domain waveform curve of the vibration signal of each sampling point with the time domain waveform curve of the vibration threshold value, and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration amplitude of the vibration signal is larger than the vibration threshold value in the same time.
Since other interference factors (for example, ambient noise) may be generated in the environment during the knocking, and thus, an interference signal may exist in the collected signals, the influence of the interference signal needs to be eliminated during the positioning, and the determined effective positioning signal is ensured to be the vibration signal generated by the knocking, so that when the optical cable position is determined by positioning the sampling points according to the effective positioning signal, the triggering frequency of the effective positioning signal (that is, the confirmation frequency of the effective positioning signal, in other words, the frequency of the vibration amplitude of the vibration signal being greater than the vibration threshold value) of each sampling point can be compared with the predetermined knocking frequency; under the condition that the comparison result is that the trigger frequency of the effective positioning signal is larger than the preset knocking frequency, the effective positioning signal is used as a final positioning signal; and determining the sampling point corresponding to the final positioning signal as the optical cable position.
Such as: when the trigger frequency of the effective positioning signal is 3, the number of taps is 3, the tap time is 10 seconds, and the maximum tap per second is more than 3 and less than 10, the effective positioning signal can be judged to be the final positioning signal at the moment, when the trigger frequency of the effective positioning signal is 2, the number of taps is lower than the number of taps, and even if the vibration amplitude of the vibration signal is larger than the vibration threshold value, the vibration signal cannot be used as the final positioning signal at the moment.
FIG. 3 illustrates one embodiment of a computer device of the present application. The computer device may be a server including a processor, memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is used to store static information and dynamic information data. The network interface of the computer device is used for communicating with an external terminal through a network connection. Which computer program, when being executed by a processor, carries out the steps of the above-mentioned method embodiments.
It will be appreciated by those skilled in the art that the structure shown in FIG. 3 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In an embodiment, a computer device is also provided, comprising a memory and a processor, the memory having stored therein a computer program, the processor performing the steps of the above-described method embodiments when the computer program is executed.
In one embodiment, a computer readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method embodiments described above.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, or the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like.
The present application is not limited to the structure that has been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (8)
1. A method of locating an optical cable comprising:
obtaining a vibration signal of each sampling point preset by an optical cable, and carrying out framing buffer processing on the vibration signal to obtain framing signals with preset buffer sizes;
according to a preset vibration threshold coefficient, performing vibration threshold calculation on each frame-divided signal with the buffer size to obtain a corresponding vibration threshold;
comparing the vibration signal of each sampling point with the vibration threshold value, and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration signal of the sampling point exceeds the vibration threshold value;
according to the effective positioning signals, positioning sampling points to determine the position of the optical cable;
according to a preset vibration threshold coefficient, performing vibration threshold calculation on the framing signals of each buffer size to obtain corresponding vibration thresholds, wherein the steps of:
accumulating and averaging the vibration signal arrays with the size of each buffer to obtain an average value array;
traversing the average value according to the preset pane length, and selecting the average value with the largest value as a threshold value array;
and multiplying the threshold value array by a preset vibration threshold value coefficient to obtain a corresponding vibration threshold value.
2. The method for positioning an optical cable according to claim 1, wherein obtaining a vibration signal for each sampling point preset for the optical cable comprises:
continuously knocking each sampling point preset in the optical cable according to a preset knocking frequency, and collecting vibration signals of each sampling point during knocking to obtain the vibration signals of each sampling point preset in the optical cable.
3. The method of claim 1, wherein comparing the vibration signal of each sampling point with the vibration threshold and determining the vibration signal of the sampling point as an effective positioning signal when the vibration signal exceeds the vibration threshold comprises:
performing time domain conversion on the vibration signal of each sampling point and the vibration threshold value to obtain a corresponding time domain waveform curve;
and comparing the time domain waveform curve of the vibration signal of each sampling point with the time domain waveform curve of the vibration threshold value, and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration amplitude of the vibration signal is larger than the vibration threshold value in the same time.
4. A method of positioning an optical cable according to claim 3, wherein determining the position of the optical cable based on the effective positioning signal by positioning the sampling point comprises:
comparing the trigger frequency of the effective positioning signal of each sampling point with a preset knocking frequency;
under the condition that the comparison result is that the trigger frequency of the effective positioning signal is larger than the preset knocking frequency, the effective positioning signal is used as a final positioning signal;
and determining the sampling point corresponding to the final positioning signal as the optical cable position.
5. A fiber optic cable positioning system, comprising:
the signal processing module is used for acquiring a vibration signal of each sampling point preset by the optical cable, and carrying out framing buffer processing on the vibration signal to obtain framing signals with preset buffer sizes;
the self-adaptive threshold module is used for carrying out vibration threshold calculation on the framing signals with each buffer size according to a preset vibration threshold coefficient to obtain a corresponding vibration threshold;
the signal judging module is used for comparing the vibration signal of each sampling point with the vibration threshold value and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration signal of the sampling point exceeds the vibration threshold value;
the signal positioning module is used for positioning sampling points according to the effective positioning signals to determine the position of the optical cable;
the self-adaptive threshold module calculates the vibration threshold value of each buffer frame signal according to a preset vibration threshold value coefficient, and when the corresponding vibration threshold value is obtained, accumulates and averages the vibration signal arrays of each buffer frame to obtain an average value array; traversing the average value according to the preset pane length, and selecting the average value with the largest value as a threshold value array; and multiplying the threshold value array by a preset vibration threshold value coefficient to obtain a corresponding vibration threshold value.
6. The optical cable positioning system according to claim 5, wherein the signal processing module continuously knocks at a predetermined knocking frequency at each sampling point preset in the optical cable when acquiring the vibration signal of each sampling point preset in the optical cable, and collects the vibration signal of each sampling point at the time of knocking to obtain the vibration signal of each sampling point preset in the optical cable.
7. The optical cable positioning system of claim 5, wherein the signal determination module compares the vibration signal of each sampling point with the vibration threshold value, and when the vibration signal of the sampling point exceeds the vibration threshold value as a result of the comparison, performs time domain conversion on the vibration signal of each sampling point and the vibration threshold value to obtain a corresponding time domain waveform curve; and comparing the time domain waveform curve of the vibration signal of each sampling point with the time domain waveform curve of the vibration threshold value, and judging the vibration signal as an effective positioning signal when the comparison result is that the vibration amplitude of the vibration signal is larger than the vibration threshold value in the same time.
8. The fiber optic cable positioning system of claim 7, wherein the signal positioning module compares the trigger frequency of the effective positioning signal for each sampling point with a predetermined tapping frequency when determining the fiber optic cable position based on the effective positioning signal for sampling point positioning; under the condition that the comparison result is that the trigger frequency of the effective positioning signal is larger than the preset knocking frequency, the effective positioning signal is used as a final positioning signal; and determining the sampling point corresponding to the final positioning signal as the optical cable position.
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