A quick optical cable distinguishing and searching method, system and program product
By dividing optical cables into vibrating and non-vibrating clusters, and utilizing vibration excitation and spectrum analysis, the problems of slow optical cable positioning speed and poor reliability were solved, achieving fast and accurate optical cable positioning, reducing false alarm rate and enhancing anti-interference capability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGZI RUILI TECH (BEIJING) CO LTD
- Filing Date
- 2026-01-14
- Publication Date
- 2026-07-31
AI Technical Summary
Existing technologies are slow and unreliable when locating target optical cables in optical cable wells, especially in harsh environments where accurate positioning is difficult and interference resistance is insufficient.
Optical cables are divided into vibrating optical cable clusters and non-vibrating optical cable clusters. A specific frequency vibration excitation is applied using a vibration device. Through signal acquisition, segmentation processing and spectrum analysis, the type of optical cable is determined, and the optical cable clusters are iteratively split to find the target optical cable.
It achieves fast and accurate optical cable positioning, improves the speed and accuracy of identification and retrieval, reduces the false alarm rate, and enhances anti-interference capabilities.
Smart Images

Figure CN121864188B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of optical cable positioning technology, specifically relating to a rapid optical cable identification and locating method, system, and program product. Background Technology
[0002] In recent years, with the growth of network demand and the development of optical communication technology, the use of optical cables has increased significantly. However, accurately identifying and locating a specific target optical cable in a complex optical cable network is a key challenge in operation and maintenance. Current technologies for locating a target optical cable from a large number of cables in a cable manhole mostly employ a testing method based on an Optical Time Domain Reflectometer (OTDR). This involves inspection personnel tapping or bending all the cables in the manhole sequentially, while notifying the equipment room staff to check the OTDR. If abnormal loss is detected, the corresponding cable is checked one by one until the target cable is located. This traditional method of optical cable identification and location requires manual coordination at both ends for step-by-step inspection, which is slow. Furthermore, when the environment along the cable is harsh, it is difficult to find the attenuation point, leading to the inability to locate the target cable. The reliability and anti-interference capability of this identification and location method need to be improved. Summary of the Invention
[0003] The purpose of this invention is to provide a fast optical cable identification and locating method, system, and program product to solve the above-mentioned problems existing in the prior art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: Firstly, a fast optical cable identification and location method is provided, including: S1. When the inspection personnel divide all the optical cables in the optical cable well into vibrating optical cable clusters and non-vibrating optical cable clusters, and apply a vibration excitation of a specific vibration frequency to the vibrating optical cable clusters using a vibration device, the transmission signals corresponding to all optical cables are collected simultaneously, and the optical cable number corresponding to each transmission signal is determined. S2. Perform signal segmentation processing on each transmitted signal to obtain the corresponding segmented signal set, associate each segmented signal set with the corresponding optical cable number, and extract the signal spectrum of each segmented signal in each segmented signal set to obtain the signal spectrum of each segmented signal. S3. Obtain the specific vibration frequency of the vibration device, and determine whether each segment signal is a vibration-induced segment signal based on the specific vibration frequency and the signal spectrum of each segment signal; S4. Based on the proportion of vibration-induced segment signals contained in each segment signal set, classify the optical cable numbers associated with each segment signal set into either the vibration optical cable number group or the non-vibration optical cable number group. S5. Determine the target optical cable number, and determine whether the target optical cable number is in the vibrating optical cable number group or the non-vibrating optical cable number group to obtain the corresponding target determination result; S6. Send the target determination result to the inspection personnel, so that the inspection personnel can split all the optical cables in the original vibrating optical cable cluster or the original non-vibrating optical cable cluster into new vibrating optical cable clusters and non-vibrating optical cable clusters according to the target determination result, and apply vibration excitation of a specific vibration frequency to the new vibrating optical cable clusters using a vibration device; then, according to the target determination result, synchronously collect the transmission signals corresponding to each group of vibrating optical cable numbering or non-vibrating optical cable numbering. S7. Iterate through steps S2-S6 until the inspection personnel find the optical cable corresponding to the target optical cable number based on the final target determination result.
[0005] In one possible design, the step of extracting the signal spectrum of each segment signal from each segment signal set to obtain the signal spectrum of each segment signal includes: Fast Fourier Transform is performed on each segment of the signal in each segmented signal set to extract the signal spectrum of each segmented signal.
[0006] In one possible design, the determination of whether each segment signal is a vibration-induced segment signal based on a specific vibration frequency and the signal spectrum of each segment signal includes: Based on a specific vibration frequency, the narrow band region in the signal spectrum of each segment signal is located, and the spectral pulse index, phase consistency index, and kurtosis index of the narrow band region in the corresponding signal spectrum of each segment signal are determined. The comprehensive feature score of the narrow band region in the spectrum of each segmented signal is calculated using the spectral pulse index, phase consistency index, and kurtosis index. The segmented signal whose comprehensive feature score in the narrow band region of the corresponding signal spectrum exceeds the set score threshold is identified as a vibration-induced segmented signal.
[0007] In one possible design, determining the spectral pulse index, phase consistency index, and kurtosis index of the narrowband region in the signal spectrum corresponding to each segmented signal includes: Determine the maximum spectral amplitude Ω of the narrowband region in the signal spectrum of the corresponding segmented signal. max , average amplitude of spectrum Ω mean and the standard deviation of the spectral amplitude Ω std ; Using the maximum amplitude Ω of the spectrum max , average amplitude of spectrum Ω mean and the standard deviation of the spectral amplitude Ω std Calculate the spectral pulse parameter P of the narrowband region in the signal spectrum of the corresponding segmented signal. i P i =(Ω max -Ω mean) / Ω std ; the spectral pulse parameter P in the narrowband region of its signal spectrum i After normalization, the spectral impulse exponent P of the narrowband region in the signal spectrum of the corresponding segmented signal is obtained. nor ; Narrowband demodulation centered at a specific vibration frequency is performed on the narrowband region of the signal spectrum corresponding to each segment of the signal to obtain the instantaneous phase sequence of the narrowband region, and the standard deviation σ of the instantaneous phase sequence of the narrowband region is determined. The phase consistency index C of the narrowband region in the signal spectrum corresponding to each segment of the signal is calculated using the standard deviation σ of the instantaneous phase sequence of the narrowband region in the corresponding signal spectrum. nor C nor =1 / (1+σ) Determine the kurtosis of the narrowband region in the spectrum corresponding to each segment of the signal, and normalize the kurtosis of the narrowband region in the spectrum corresponding to each segment of the signal to obtain the kurtosis index K of the narrowband region in the spectrum corresponding to each segment of the signal. nor .
[0008] In one possible design, the calculation of the comprehensive feature score of the narrowband region in the signal spectrum corresponding to each segment of the signal using the spectral pulse index, phase consistency index, and kurtosis index includes: The spectral pulse index, phase consistency index, and kurtosis index of the narrow band region in the signal spectrum corresponding to each segment signal are weighted and summed to obtain the comprehensive feature score of the narrow band region in the signal spectrum corresponding to each segment signal.
[0009] In one possible design, the step of classifying the optical cable numbers associated with each set of vibration-induced segmented signals into either a vibrating optical cable number group or a non-vibrating optical cable number group based on the proportion of vibration-induced segmented signals contained therein includes: Determine the proportion of vibration-induced segmented signals in each segmented signal set, and assign the optical cable numbers associated with segmented signal sets whose proportion of vibration-induced segmented signals exceeds a set threshold to the vibration optical cable number group, and assign the optical cable numbers associated with segmented signal sets whose proportion of vibration-induced segmented signals does not exceed the set threshold to the non-vibration optical cable number group.
[0010] In one possible design, the target determination result is sent to the inspection personnel, enabling them to split all optical cables in the original vibrating or non-vibrating optical cable clusters into new vibrating and non-vibrating optical cable clusters based on the target determination result. A vibration device is then used to apply vibration excitation at a specific frequency to the new vibrating optical cable clusters. Then, based on the target determination result, the transmission signals corresponding to the vibrating or non-vibrating optical cable number groups are synchronously acquired, including: When the target determination result is that the target optical cable number is in the vibrating optical cable number group, the target determination result is sent to the inspection personnel, so that the inspection personnel can split all the optical cables in the original vibrating optical cable cluster into a new vibrating optical cable cluster and a non-vibrating optical cable cluster according to the target determination result, and apply vibration excitation of a specific vibration frequency to the new vibrating optical cable cluster using a vibration device; then, according to the target determination result, the transmission signals of each channel corresponding to the vibrating optical cable number group are collected synchronously. When the target determination result indicates that the target optical cable number is in the non-vibrating optical cable number group, the target determination result is sent to the inspection personnel. The inspection personnel then split all the optical cables in the original non-vibrating optical cable cluster into a new vibrating optical cable cluster and a non-vibrating optical cable cluster based on the target determination result. The new vibrating optical cable cluster is then subjected to vibration excitation at a specific vibration frequency using a vibration device. Then, the transmission signals corresponding to each channel of the non-vibrating optical cable number group are collected synchronously based on the target determination result.
[0011] Secondly, a rapid optical cable identification and locating system is provided, comprising a signal acquisition unit, a segmentation processing unit, a signal classification unit, a numbering and grouping unit, and a determination and transmission unit, wherein: The signal acquisition unit is used to simultaneously acquire the transmission signals corresponding to all optical cables when the inspection personnel split all optical cables in the optical cable well into vibrating optical cable clusters and non-vibrating optical cable clusters, and apply vibration excitation of a specific vibration frequency to the vibrating optical cable clusters using a vibration device, and determine the optical cable number corresponding to each transmission signal, and simultaneously acquire each transmission signal corresponding to the vibrating optical cable number group or the non-vibrating optical cable number group according to the target determination result. The segmentation processing unit is used to segment the transmitted signals of each channel to obtain the corresponding segmented signal set, associate each segmented signal set with the corresponding optical cable number, and extract the signal spectrum of each segmented signal in each segmented signal set to obtain the signal spectrum of each segmented signal. The signal classification unit is used to acquire the specific vibration frequency of the vibration device and determine whether each segment signal is a vibration-induced segment signal based on the specific vibration frequency and the signal spectrum of each segment signal. The numbering and grouping unit is used to classify the optical cable numbers associated with each set of vibration-induced segmented signals into either the vibration optical cable numbering group or the non-vibration optical cable numbering group based on the proportion of vibration-induced segmented signals contained therein. The determination and transmission unit is used to determine the target optical cable number, whether the target optical cable number is in the vibrating optical cable number group or the non-vibrating optical cable number group, obtain the corresponding target determination result, and send the target determination result to the inspection personnel. The inspection personnel then split all the optical cables in the original vibrating optical cable cluster or the original non-vibrating optical cable cluster into a new vibrating optical cable cluster and a non-vibrating optical cable cluster based on the target determination result, and apply a vibration excitation of a specific vibration frequency to the new vibrating optical cable cluster using a vibration device.
[0012] Thirdly, a fast optical cable identification and locating system is provided, including: Memory, used to store instructions; The processor is configured to read instructions stored in the memory and execute any of the fast optical cable resolution and search methods described in the first aspect above, according to the instructions.
[0013] Fourthly, a computer-readable storage medium is provided, on which instructions are stored, which, when executed on a computer, cause the computer to perform any one of the fast optical cable identification and search methods described in the first aspect. Simultaneously, a computer program product is also provided, which, when executed on a computer, performs any one of the fast optical cable identification and search methods described in the first aspect.
[0014] Beneficial Effects: This invention splits optical cables into vibrating and non-vibrating clusters, then applies vibration excitation to the vibrating clusters. At the signal receiving and processing backend, the signals transmitted by each cable are segmented and analyzed to determine whether the target optical cable is in a vibrating or non-vibrating cluster. The cluster containing the target cable is then further split and processed using the same method, iterating repeatedly until the target cable is found. This achieves fast and efficient optical cable identification and location. This invention constructs a complete and robust detection logic chain, improving the speed and accuracy of target optical cable identification and location. Furthermore, by introducing multi-dimensional spectral feature fusion analysis, it significantly reduces the false alarm rate, improves detection sensitivity, and has strong anti-interference capabilities, making it easy to implement. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a flowchart illustrating the method in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the system configuration in Embodiment 2 of the present invention; Figure 3 This is a schematic diagram of the system configuration in Embodiment 3 of the present invention. Detailed Implementation
[0017] It should be noted that the descriptions of these embodiments are intended to aid in understanding the invention and do not constitute a limitation thereof. The specific structural and functional details disclosed herein are merely for describing exemplary embodiments of the invention. However, the invention may be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.
[0018] It should be understood that, unless otherwise explicitly specified and limited, the corresponding terms should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments according to the specific circumstances.
[0019] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. For example, apparatus may be shown in block diagrams to avoid obscuring the examples with unnecessary details. In other embodiments, well-known processes, structures, and techniques may be omitted with non-essential details to avoid obscuring the embodiments.
[0020] Example 1: This embodiment provides a fast optical cable identification and location method, which can be applied to corresponding signal processing systems, such as... Figure 1 As shown, the method includes the following steps: S1. When the inspection personnel divide all the optical cables in the optical cable well into vibrating optical cable clusters and non-vibrating optical cable clusters, and apply a vibration excitation of a specific vibration frequency to the vibrating optical cable clusters using a vibration device, the transmission signals corresponding to all optical cables are collected simultaneously, and the optical cable number corresponding to each transmission signal is determined.
[0021] In practice, inspection personnel can separate all optical cables in the optical cable well into vibrating optical cable clusters and non-vibrating optical cable clusters on site, and use a vibration device to apply vibration excitation at a specific vibration frequency to the vibrating optical cable clusters. At this time, the back-end signal processing system synchronously collects the transmission signals corresponding to all optical cables and determines the optical cable number corresponding to each transmission signal, including the target optical cable number corresponding to the target optical cable being searched.
[0022] S2. Perform signal segmentation processing on each transmitted signal to obtain the corresponding segmented signal set, associate each segmented signal set with the corresponding optical cable number, and extract the signal spectrum of each segmented signal in each segmented signal set to obtain the signal spectrum of each segmented signal.
[0023] In practice, the signal processing system first filters each transmitted signal to initially suppress out-of-band noise. Then, it segments each transmitted signal according to a fixed segment length to obtain corresponding segmented signal sets, and associates each segmented signal set with its corresponding optical cable number. Finally, it performs Fast Fourier Transform on each segmented signal in each segmented signal set to extract the signal spectrum of each segmented signal.
[0024] S3. Obtain the specific vibration frequency of the vibration device, and determine whether each segment signal is a vibration-induced segment signal based on the specific vibration frequency and the signal spectrum of each segment signal.
[0025] In practical implementation, the system acquires the specific vibration frequency f0 of the vibration device, and then locates the narrowband region Ω in the signal spectrum of each segment signal based on the specific vibration frequency f0, such as [f0-Δf, f0+Δf]. Next, it determines the spectral impulse index P of the narrowband region Ω in the signal spectrum corresponding to each segment signal. nor Phase consistency index C nor and kurtosis index K nor Specifically, it includes: Determine the maximum spectral amplitude Ω of the narrow band region Ω in the signal spectrum of the corresponding segmented signal. max , average amplitude of spectrum Ω mean and the standard deviation of the spectral amplitude Ω std ; Using the maximum amplitude Ω of the spectrum max , average amplitude of spectrum Ω mean and the standard deviation of the spectral amplitude Ω std Calculate the spectral pulse parameter P of the narrow-band region Ω in the signal spectrum of the corresponding segmented signal. i P i =(Ω max -Ω mean ) / Ω std ; the spectral pulse parameter P of the narrow band region Ω in its signal spectrum i After normalization, the spectral impulse exponent P of the narrow-band region Ω in the signal spectrum of the corresponding segmented signal is obtained. nor ; Narrowband demodulation centered at a specific vibration frequency is performed on the narrowband region Ω in the signal spectrum corresponding to each segment of the signal to obtain the instantaneous phase sequence of the narrowband region Ω, and the standard deviation σ of the instantaneous phase sequence of the narrowband region Ω is determined. The phase consistency index C of the narrowband region Ω in the signal spectrum corresponding to each segment of the signal is calculated using the standard deviation σ of the instantaneous phase sequence of the narrowband region Ω in the corresponding signal spectrum. nor C nor =1 / (1+σ) The kurtosis of the narrowband region Ω in the spectrum of each segmented signal is determined, and the kurtosis of the narrowband region Ω in the spectrum of each segmented signal is normalized to obtain the kurtosis index K of the narrowband region Ω in the spectrum of each segmented signal. nor .
[0026] Next, the spectral pulse exponent P of the narrow-band region Ω in the spectrum of each segmented signal is calculated. nor Phase consistency index C nor and kurtosis index K nor We perform a weighted summation to obtain the comprehensive feature score F of the narrowband region in the signal spectrum corresponding to each segment, F = a × P nor +b×C nor +c×K nor a, b, and c are the corresponding preset weighting coefficients. Finally, the segmented signals whose comprehensive feature score F in the narrow band region of the corresponding signal spectrum exceeds the set score threshold are determined to be vibration-induced segmented signals.
[0027] S4. Based on the proportion of vibration-induced segment signals contained in each segment signal set, classify the optical cable numbers associated with each segment signal set into either the vibration optical cable number group or the non-vibration optical cable number group.
[0028] In practice, the system first determines the proportion of vibration-induced segmented signals in each segmented signal set; then, the optical cable numbers associated with the segmented signal sets whose proportion of vibration-induced segmented signals exceeds a set threshold are assigned to the vibration optical cable number group, which corresponds to the vibration optical cable cluster; and the optical cable numbers associated with the segmented signal sets whose proportion of vibration-induced segmented signals does not exceed the set threshold are assigned to the non-vibration optical cable number group, which corresponds to the non-vibration optical cable cluster.
[0029] S5. Determine the target optical cable number, and determine whether the target optical cable number is in the vibrating optical cable number group or the non-vibrating optical cable number group to obtain the corresponding target determination result.
[0030] In practice, the system determines the target optical cable number corresponding to the target optical cable that needs to be identified and searched, and then determines whether the target optical cable number is in the vibrating optical cable number group or the non-vibrating optical cable number group to obtain the corresponding target determination result.
[0031] S6. Send the target determination result to the inspection personnel, so that the inspection personnel can split all the optical cables in the original vibrating optical cable cluster or the original non-vibrating optical cable cluster into new vibrating optical cable clusters and non-vibrating optical cable clusters according to the target determination result, and apply vibration excitation of a specific vibration frequency to the new vibrating optical cable clusters using a vibration device; then, according to the target determination result, synchronously collect the transmission signals corresponding to each group of vibrating optical cable numbering or non-vibrating optical cable numbering.
[0032] In practice, when the target optical cable number is determined to be within the vibrating optical cable number group, the system sends the target determination result to the inspection personnel. The personnel then divide all optical cables in the original vibrating optical cable cluster into new vibrating and non-vibrating optical cable clusters based on the result, and apply vibration excitation at a specific frequency to the new vibrating optical cable clusters using a vibration device. The system then synchronously acquires the transmission signals corresponding to each vibrating optical cable number group based on the target determination result.
[0033] When the target optical cable number is determined to be within the non-vibrating optical cable number group, the system sends the target determination result to the inspection personnel. The personnel then split all optical cables in the original non-vibrating optical cable cluster into new vibrating and non-vibrating optical cable clusters based on the result, and apply vibration excitation at a specific frequency to the new vibrating optical cable clusters using a vibration device. The system then synchronously acquires the transmission signals corresponding to each channel in the non-vibrating optical cable number group based on the target determination result.
[0034] S7. Iterate through steps S2-S6 until the inspection personnel find the optical cable corresponding to the target optical cable number based on the final target determination result.
[0035] In practice, the system iteratively executes the above steps S2-S6 until the inspection personnel identify the optical cable corresponding to the target optical cable number in the optical cable well based on the final target determination result, i.e., the target optical cable.
[0036] This method constructs a complete and robust detection logic chain, which improves the speed and accuracy of target optical cable identification and retrieval. At the same time, by introducing multi-dimensional spectral feature fusion analysis, it greatly reduces the false alarm rate, improves the detection sensitivity, and has strong anti-interference ability and is easy to implement.
[0037] Example 2: This embodiment provides a fast optical cable identification and location system, such as Figure 2 As shown, it includes a signal acquisition unit, a segmentation processing unit, a signal classification unit, a numbering and grouping unit, and a decision and transmission unit, wherein: The signal acquisition unit is used to simultaneously acquire the transmission signals corresponding to all optical cables when the inspection personnel split all optical cables in the optical cable well into vibrating optical cable clusters and non-vibrating optical cable clusters, and apply vibration excitation of a specific vibration frequency to the vibrating optical cable clusters using a vibration device, and determine the optical cable number corresponding to each transmission signal, and simultaneously acquire each transmission signal corresponding to the vibrating optical cable number group or the non-vibrating optical cable number group according to the target determination result. The segmentation processing unit is used to segment the transmitted signals of each channel to obtain the corresponding segmented signal set, associate each segmented signal set with the corresponding optical cable number, and extract the signal spectrum of each segmented signal in each segmented signal set to obtain the signal spectrum of each segmented signal. The signal classification unit is used to acquire the specific vibration frequency of the vibration device and determine whether each segment signal is a vibration-induced segment signal based on the specific vibration frequency and the signal spectrum of each segment signal. The numbering and grouping unit is used to classify the optical cable numbers associated with each set of vibration-induced segmented signals into either the vibration optical cable numbering group or the non-vibration optical cable numbering group based on the proportion of vibration-induced segmented signals contained therein. The determination and transmission unit is used to determine the target optical cable number, whether the target optical cable number is in the vibrating optical cable number group or the non-vibrating optical cable number group, obtain the corresponding target determination result, and send the target determination result to the inspection personnel. The inspection personnel then split all the optical cables in the original vibrating optical cable cluster or the original non-vibrating optical cable cluster into a new vibrating optical cable cluster and a non-vibrating optical cable cluster based on the target determination result, and apply a vibration excitation of a specific vibration frequency to the new vibrating optical cable cluster using a vibration device.
[0038] Example 3: This embodiment provides a fast optical cable identification and location system, such as Figure 3 As shown, at the hardware level, it includes: The data interface is used to establish data communication between the processor and external data terminals; Memory, used to store instructions; The processor is used to read the instructions stored in the memory and execute the fast optical cable resolution and search method in Embodiment 1 according to the instructions.
[0039] Optionally, the system also includes an internal bus, through which the processor, memory, and data interface can be interconnected. This internal bus can be a PCIe (Peripheral Component Interconnect Eexpress) bus, which can be divided into an address bus, a data bus, a control bus, etc. The memory can include, but is not limited to, Random Access Memory (RAM), Read Only Memory (ROM), Flash Memory, First Input First Output (FIFO), and / or First In Last Out (FILO). The processor can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.
[0040] Example 4: This embodiment provides a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the fast optical fiber identification and search method described in Embodiment 1. The computer-readable storage medium refers to a data storage medium, which may include, but is not limited to, floppy disks, optical disks, hard disks, flash memory, USB flash drives, and / or Memory Sticks. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
[0041] This embodiment also provides a computer program product that, when run on a computer, executes the fast optical cable identification and search method described in Embodiment 1. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
[0042] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A quick optical cable resolution lookup method, characterized by, include: S1. When the inspection personnel divide all the optical cables in the optical cable well into vibrating optical cable clusters and non-vibrating optical cable clusters, and apply a vibration excitation of a specific vibration frequency to the vibrating optical cable clusters using a vibration device, the transmission signals corresponding to all optical cables are collected simultaneously, and the optical cable number corresponding to each transmission signal is determined. S2. Perform signal segmentation processing on each transmitted signal to obtain the corresponding segmented signal set, associate each segmented signal set with the corresponding optical cable number, and extract the signal spectrum of each segmented signal in each segmented signal set to obtain the signal spectrum of each segmented signal. S3. Obtain the specific vibration frequency of the vibration device, and determine whether each segment signal is a vibration-induced segment signal based on the specific vibration frequency and the signal spectrum of each segment signal; S4. Based on the proportion of vibration-induced segment signals contained in each segment signal set, classify the optical cable numbers associated with each segment signal set into either the vibration optical cable number group or the non-vibration optical cable number group. S5. Determine the target optical cable number, and determine whether the target optical cable number is in the vibrating optical cable number group or the non-vibrating optical cable number group to obtain the corresponding target determination result; S6. Send the target determination result to the inspection personnel, so that the inspection personnel can split all the optical cables in the original vibrating optical cable cluster or the original non-vibrating optical cable cluster into new vibrating optical cable clusters and non-vibrating optical cable clusters according to the target determination result, and apply vibration excitation of a specific vibration frequency to the new vibrating optical cable clusters using a vibration device; then, according to the target determination result, synchronously collect the transmission signals corresponding to each group of vibrating optical cable numbering or non-vibrating optical cable numbering. S7. Iterate through steps S2-S6 until the inspection personnel find the optical cable corresponding to the target optical cable number based on the final target determination result.
2. The method of claim 1, wherein, The step of extracting the signal spectrum of each segment signal from each segment signal set to obtain the signal spectrum of each segment signal includes: Fast Fourier Transform is performed on each segment of the signal in each segmented signal set to extract the signal spectrum of each segmented signal.
3. The method of claim 1, wherein, The method of determining whether each segmented signal is a vibration-induced segmented signal based on a specific vibration frequency and the signal spectrum of each segmented signal includes: Based on a specific vibration frequency, the narrow band region in the signal spectrum of each segment signal is located, and the spectral pulse index, phase consistency index, and kurtosis index of the narrow band region in the corresponding signal spectrum of each segment signal are determined. The comprehensive feature score of the narrow band region in the spectrum of each segmented signal is calculated using the spectral pulse index, phase consistency index, and kurtosis index. The segmented signal whose comprehensive feature score in the narrow band region of the corresponding signal spectrum exceeds the set score threshold is identified as a vibration-induced segmented signal.
4. The method of claim 3, wherein, The determination of the spectral pulse index, phase consistency index, and kurtosis index of the narrowband region in the signal spectrum corresponding to each segmented signal includes: Determine the maximum spectral amplitude Ω of the narrowband region in the signal spectrum of the corresponding segmented signal. max , average amplitude of spectrum Ω mean and the standard deviation of the spectral amplitude Ω std ; Using the maximum amplitude Ω of the spectrum max , average amplitude of spectrum Ω mean and the standard deviation of the spectral amplitude Ω std Calculate the spectral pulse parameter P of the narrowband region in the signal spectrum of the corresponding segmented signal. i P i =(Ω max -Ω mean ) / Ω std ; the spectral pulse parameter P in the narrowband region of its signal spectrum i After normalization, the spectral impulse exponent P of the narrowband region in the signal spectrum of the corresponding segmented signal is obtained. nor ; Narrowband demodulation centered at a specific vibration frequency is performed on the narrowband region of the signal spectrum corresponding to each segment of the signal to obtain the instantaneous phase sequence of the narrowband region, and the standard deviation σ of the instantaneous phase sequence of the narrowband region is determined. The phase consistency index C of the narrowband region in the signal spectrum corresponding to each segment of the signal is calculated using the standard deviation σ of the instantaneous phase sequence of the narrowband region in the corresponding signal spectrum. nor C nor =1 / (1+σ) determine the spectral kurtosis of the narrow-band region in the signal spectrum corresponding to each segmented signal, and normalize the spectral kurtosis of the narrow-band region in the signal spectrum corresponding to each segmented signal to obtain a kurtosis index K of the narrow-band region in the signal spectrum corresponding to each segmented signal nor .
5. The method of claim 3, wherein, The calculation of the comprehensive feature score of the narrowband region in the signal spectrum corresponding to each segment of the signal using the spectral pulse index, phase consistency index, and kurtosis index includes: The spectral pulse index, phase consistency index, and kurtosis index of the narrow band region in the signal spectrum corresponding to each segment signal are weighted and summed to obtain the comprehensive feature score of the narrow band region in the signal spectrum corresponding to each segment signal.
6. The method for rapid optical cable identification and locating according to claim 1, characterized in that, The step of classifying the optical cable numbers associated with each set of vibration-induced segmented signals into either a vibrating optical cable number group or a non-vibrating optical cable number group based on the proportion of vibration-induced segmented signals contained therein includes: Determine the proportion of vibration-induced segmented signals in each segmented signal set, and assign the optical cable numbers associated with segmented signal sets whose proportion of vibration-induced segmented signals exceeds a set threshold to the vibration optical cable number group, and assign the optical cable numbers associated with segmented signal sets whose proportion of vibration-induced segmented signals does not exceed the set threshold to the non-vibration optical cable number group.
7. The method for rapid optical cable identification and locating according to claim 1, characterized in that, The target determination result is sent to the inspection personnel, so that the inspection personnel can split all the optical cables in the original vibrating optical cable cluster or the original non-vibrating optical cable cluster into a new vibrating optical cable cluster and a non-vibrating optical cable cluster according to the target determination result, and apply a vibration excitation of a specific vibration frequency to the new vibrating optical cable cluster using a vibration device. Then, based on the target determination results, the transmission signals corresponding to the vibration optical cable number group or the non-vibration optical cable number group are collected synchronously, including: When the target determination result is that the target optical cable number is in the vibrating optical cable number group, the target determination result is sent to the inspection personnel, so that the inspection personnel can split all the optical cables in the original vibrating optical cable cluster into a new vibrating optical cable cluster and a non-vibrating optical cable cluster according to the target determination result, and apply vibration excitation of a specific vibration frequency to the new vibrating optical cable cluster using a vibration device; then, according to the target determination result, the transmission signals of each channel corresponding to the vibrating optical cable number group are collected synchronously. When the target determination result indicates that the target optical cable number is in the non-vibrating optical cable number group, the target determination result is sent to the inspection personnel. The inspection personnel then split all the optical cables in the original non-vibrating optical cable cluster into a new vibrating optical cable cluster and a non-vibrating optical cable cluster based on the target determination result. The new vibrating optical cable cluster is then subjected to vibration excitation at a specific vibration frequency using a vibration device. Then, the transmission signals corresponding to each channel of the non-vibrating optical cable number group are collected synchronously based on the target determination result.
8. A rapid optical cable identification and locating system, characterized in that, It includes a signal acquisition unit, a segmentation processing unit, a signal classification unit, a numbering and grouping unit, and a decision and transmission unit, wherein: The signal acquisition unit is used to simultaneously acquire the transmission signals corresponding to all optical cables when the inspection personnel split all optical cables in the optical cable well into vibrating optical cable clusters and non-vibrating optical cable clusters, and apply vibration excitation of a specific vibration frequency to the vibrating optical cable clusters using a vibration device, and determine the optical cable number corresponding to each transmission signal, and simultaneously acquire each transmission signal corresponding to the vibrating optical cable number group or the non-vibrating optical cable number group according to the target determination result. The segmentation processing unit is used to segment the transmitted signals of each channel to obtain the corresponding segmented signal set, associate each segmented signal set with the corresponding optical cable number, and extract the signal spectrum of each segmented signal in each segmented signal set to obtain the signal spectrum of each segmented signal. The signal classification unit is used to acquire the specific vibration frequency of the vibration device and determine whether each segment signal is a vibration-induced segment signal based on the specific vibration frequency and the signal spectrum of each segment signal. The numbering and grouping unit is used to classify the optical cable numbers associated with each set of vibration-induced segmented signals into either the vibration optical cable numbering group or the non-vibration optical cable numbering group based on the proportion of vibration-induced segmented signals contained therein. The determination and transmission unit is used to determine the target optical cable number, whether the target optical cable number is in the vibrating optical cable number group or the non-vibrating optical cable number group, obtain the corresponding target determination result, and send the target determination result to the inspection personnel. The inspection personnel then split all the optical cables in the original vibrating optical cable cluster or the original non-vibrating optical cable cluster into a new vibrating optical cable cluster and a non-vibrating optical cable cluster based on the target determination result, and apply a vibration excitation of a specific vibration frequency to the new vibrating optical cable cluster using a vibration device.
9. A rapid optical cable identification and locating system, characterized in that, include: Memory, used to store instructions; A processor is configured to read instructions stored in the memory and execute the fast optical cable resolution and search method according to any one of claims 1-7.
10. A computer program product, characterized in that, When the computer program product is run on a computer, it executes the fast optical cable identification and search method according to any one of claims 1-7.