CN115580347A - Method, system and equipment for early warning damage to optical cable in interference environment based on optical fiber sensing - Google Patents
Method, system and equipment for early warning damage to optical cable in interference environment based on optical fiber sensing Download PDFInfo
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Abstract
The invention discloses an interference environment optical cable damage early warning method, system and equipment based on optical fiber sensing, wherein a redundant fiber core of a communication optical cable is utilized, one core is accessed into an optical fiber sensing system to serve as a vibration detector, vibration signals along the optical cable are collected, the vibration signals collected in a continuous space are converted into an image matrix, and the interference environment or the static environment of each detection section is judged by analyzing image background clutter; and then automatically selecting a signal filtering mode according to the environment state to filter out the real threatening abnormal signals and then carrying out alarm judgment, thereby achieving the purpose of optimizing the alarm effect.
Description
Technical Field
The invention relates to the technical field of optical fiber vibration sensing, in particular to an optical cable damage early warning method, system and device based on optical fiber sensing for interference environment.
Background
With the increase of the number of optical cables in a communication network and the approaching of the service life of the optical cables laid in the early stage, communication is affected by water seepage of an optical cable joint box, attenuation increases along with the passage of time, and accidents such as optical cable interruption or damage caused by railway construction, building excavation, rock mining, landslide and other accidents of an optical cable line occur occasionally. Therefore, the communication network operation and maintenance department needs to know the on-off state and the main parameters of the optical fiber at any time, quickly and accurately so as to acquire fault information in time when the optical fiber breaks down, accurately judge the geographical position of a fault point and remove the fault in time; or the optical fiber is replaced in time before the optical fiber characteristic is degraded, so that the transmission quality of the optical fiber circuit is ensured.
In a conventional optical cable real-time online monitoring system, after optical power monitoring equipment detects that the power of a special fiber core for power monitoring changes, OTDR equipment polls each fiber core in a communication optical cable to ensure that a damaged fiber core is found. Real-time on-line monitoring systems for optical cables typically employ optical switches to implement switched fiber cores for OTDR monitoring. However, when the optical power of the special fiber core for power monitoring changes, the communication optical cable is damaged. Therefore, the existing optical cable real-time online monitoring system does not have the early warning capability of the optical cable damage fault. The user of the system cannot be prompted to take advanced inspection of the position where the optical signal changes due to the change of the external physical quantity on the communication optical cable before the optical cable fails.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a method, a system and equipment for early warning of damage to an optical cable in an interference environment based on optical fiber sensing, which are used for solving at least one technical problem.
According to one aspect of the description of the invention, an optical cable damage early warning method based on optical fiber sensing for interference environment is provided, which comprises the following steps:
accessing a redundant fiber core of the communication optical cable into an optical fiber sensing system to be used as a vibration detector, and collecting vibration signals along the optical cable;
acquiring vibration signals acquired in a continuous space and converting the vibration signals into an image matrix;
analyzing the background clutter of the image, and judging whether each detection section is in an interference environment or a static environment;
automatically selecting a signal filtering mode according to the determined environment state, and filtering to obtain an abnormal signal;
and performing alarm judgment based on the abnormal signal.
According to the technical scheme, the environment state of the collected vibration signals is judged, the signal filtering mode is automatically selected according to the environment state, real threatening abnormal signals are filtered out, and then alarm judgment is carried out, so that the aim of optimizing the alarm effect is fulfilled, and the alarm accuracy of the monitoring system is guaranteed.
As a further technical solution, the method further comprises: dividing the whole optical fiber link into a plurality of detection units at equal intervals; and splicing the vibration signals collected by the plurality of detection units which are continuous in space, and converting the spliced data matrix into an image matrix.
As a further technical solution, the method further comprises: in the image matrix, sliding according to the size of a preset window and a preset step length, and sequentially calculating and recording the background clutter characteristics of data in the window area; sequentially counting the percentage of each column of the image matrix exceeding the background clutter characteristic threshold value, and recording the columns exceeding the background clutter characteristic threshold value percentage and exceeding a preset value as disturbance points with larger background disturbance; according to a space division threshold value, carrying out region division on disturbance points in a detection region; and obtaining the environmental state of each detection section in the optical fiber link based on the region division result.
As a further technical solution, the method further comprises: extracting an image in a section in an interference environment, calculating an image segmentation threshold value by using a maximum inter-class variance method, and binarizing the extracted image according to the image segmentation threshold value; and in the binarization matrix, sliding according to a preset window and a preset step length, counting the number of non-zero pixel points in the window, and if the number of the non-zero pixel points in the window exceeds a threshold value, recording the number value of the pixel points into a corresponding element of a filtering result matrix.
As a further technical solution, the method further comprises: for a section in a static environment, extracting images in the section, and calculating the median of all pixel values in the extracted images as an image segmentation threshold; and carrying out binarization on the extracted image according to an image segmentation threshold value: in the binarization matrix, sliding according to a preset window and a preset step length, counting the number of non-zero pixel points in the window, and if the number of the non-zero pixel points in the window exceeds a threshold value, recording the number value of the pixel points into a corresponding element of a filtering result matrix.
As a further technical solution, the method further comprises: dividing connected domains of the filtering result matrix, wherein each connected domain represents one external excitation; for each connected domain, counting the morphological characteristics of the connected domain; if the morphological characteristics of a certain connected domain reach a preset threshold value, identifying the connected domain as one-time external abnormal excitation; when the outside abnormal excitation recognized in a certain area reaches a preset threshold within a certain time length range, the corresponding area gives an alarm.
According to an aspect of the present specification, there is provided an optical fiber sensing-based system for early warning of damage to an optical cable in an interference environment, for implementing the method, the system including:
the vibration detector is realized by accessing a redundant fiber core of the communication optical cable into the optical fiber sensing system and is used for collecting vibration signals along the optical cable;
signal processing means for:
acquiring vibration signals acquired in a continuous space and converting the vibration signals into an image matrix;
analyzing the background clutter of the image, and judging whether each detection section is in an interference environment or a static environment;
automatically selecting a signal filtering mode according to the determined environment state, and filtering to obtain an abnormal signal;
and performing alarm judgment based on the abnormal signal.
According to an aspect of the present specification, there is provided an electronic device, which includes a processor and a memory, where at least one instruction, at least one program, a code set, or a set of instructions is stored in the memory, and the at least one instruction, the at least one program, the code set, or the set of instructions is loaded and executed by the processor to implement the method for early warning of damage to an optical cable in an interference environment based on optical fiber sensing.
Compared with the prior art, the invention has the beneficial effects that:
the invention utilizes the redundant fiber cores of the communication optical cable, accesses one of the cores into the optical fiber sensing system as a vibration detector, collects vibration signals along the optical cable, and judges whether each detection section is in an interference environment or a static environment by analyzing image background clutter. And then automatically selecting a signal filtering mode according to the environment state to filter out real threatening abnormal signals and then carrying out alarm judgment, thereby optimizing the alarm effect of the communication optical cable safety monitoring system.
Drawings
FIG. 1 is a schematic flow chart of a method according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of optical fiber vibration sensing according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of an interference environment area excitation recognition result and a static environment area recognition result according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of an electronic device according to an embodiment of the invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Because the third-party construction damage is an important risk factor endangering the safe and stable operation of the communication optical cable, the redundant fiber core of the communication optical cable is accessed into the optical fiber sensing system, the vibration signal along the optical cable is detected in real time, and the third-party construction around the communication optical cable can be monitored and early warned in time.
The optical cable is arranged in complex and various urban underground environments, a plurality of vibration signals can be detected, the urban power grid communication optical cable can be arranged at the positions of roads and buildings in downtown areas, the optical cable can detect a large number of vibration signals in a long term in frequent periods of personnel activities, the optical cable detection signals can be in a relatively calm state in positions and periods with rare personnel activities, the vibration signals acquired in continuous space are converted into image matrixes by utilizing the advantages of optical fiber sensing distributed detection, and whether the detection section is in an interference environment or a static environment can be judged by analyzing image background clutter.
In order to ensure the alarm accuracy of the monitoring system, the environment state of the acquired vibration signal needs to be judged, a signal filtering mode is automatically selected according to the environment state, so that a truly threatened abnormal signal is filtered, and then alarm judgment is carried out, so that the aim of optimizing the alarm effect is fulfilled.
The invention aims to provide a method, a system and equipment for early warning of optical cable damage in an interference environment based on optical fiber sensing. The method comprises the steps of utilizing a redundant fiber core of a communication optical cable, connecting one core into an optical fiber sensing system to serve as a vibration detector, collecting vibration signals along the optical cable, converting the vibration signals collected in a continuous space into an image matrix, and analyzing image background clutter to judge whether each detection section is in an interference environment or a static environment. And then automatically selecting a signal filtering mode according to the environment state to filter out the real threatening abnormal signals and then carrying out alarm judgment, thereby achieving the purpose of optimizing the alarm effect.
As shown in fig. 1, the method includes:
1. a redundant fiber core of the communication optical cable is utilized, one core is connected into the optical fiber sensing system to serve as a vibration detector, vibration signals along the optical cable are collected, and the whole optical fiber link is divided into a plurality of detection units at equal intervals by taking L meters as a section.
By way of illustration, as shown in fig. 2, the whole optical fiber link is divided into a plurality of detection units at equal intervals by taking 10 meters as a section.
2. The method comprises the steps of splicing vibration signals collected by a plurality of detection units which are continuous in space in an optical fiber link, namely, splicing data collected by each row of a matrix as one detection unit, splicing the data of each row according to the spatial sequence of each detection unit, and converting the spliced data into an image matrix.
3. With M 1 ×N 1 The window of (2) in the image matrix, sliding with the step length as S, sequentially calculating and recording the background clutter characteristics of the data in the window area, wherein the selectable calculation characteristics comprise: variance, contrast of the gray level co-occurrence matrix, energy of the gray level co-occurrence matrix, entropy of the gray level co-occurrence matrix, and the like.
By way of example, in a 20 × 20 window, sliding is performed with a step size of 1 in an image matrix, and background clutter characteristics of data in a window area are sequentially calculated and recorded, and the calculation characteristics are entropy of a gray level co-occurrence matrix.
4. And setting a background clutter characteristic threshold value, and counting the columns of the image matrix in sequence, wherein the percentage of the part exceeding the background clutter characteristic threshold value is. For example, the background clutter characteristic threshold is set to be 3.5, and the columns of the image matrix are counted in sequence, wherein the percentage of the part exceeding the background clutter characteristic threshold is calculated.
5. Searching and recording image matrix, wherein the percentage of the threshold value of the over-background clutter features exceeds T ratio I.e. find the disturbance points where there is a large background disturbance. By way of example, the columns in the image matrix where the threshold percentage of background clutter features exceeds 50% are searched and recorded, i.e. disturbance points where large background interference exists are found.
6. Dividing threshold T according to space gap And dividing the disturbance points in the detection area into areas, and dividing the detection units with the interval smaller than a division threshold into the same area. And judging the section in the interference environment and the section in the static environment in the whole optical fiber link according to the region division result. For example, the disturbance points in the detection region are divided into regions according to a spatial division threshold 3 (3 detection units), and the detection units whose intervals are smaller than the division threshold are divided into the same region.
7. For each section in the interference environment, separately intercepting the local image in the section, and calculating the image segmentation threshold T by using the maximum inter-class variance method seg1 According to T seg1 And carrying out binarization on the local image. Then with M 2 ×N 2 The window (2) slides with the step length of 1 in the binary matrix, counts the number of non-zero pixel points in the window, and when the number of the non-zero pixel points in the window exceeds a threshold value T num1 Then, the number value of the pixel point is recorded in the corresponding element of the filtering result matrix. For example, in a 10 × 10 window, sliding is performed in the binarization matrix with the step size of 1, the number of non-zero pixels in the window is counted, and when the number of non-zero pixels in the window exceeds the threshold 10, the number of the pixels is recorded into the corresponding element of the filtering result matrix.
8. For each section in static environment, separately cutting out the local image in the section, calculating the median of all pixel values in the local image as image segmentation threshold T seg2 According to T seg2 And carrying out binarization on the local image. Then with M 2 ×N 2 The window is slid by the step length of 1 in the binary matrix, the number of nonzero pixel points in the window is counted, and when the number of the nonzero pixel points in the window is smaller than the preset valueNumber exceeding threshold T num2 (T num2 ＜T num1 ) Then the number value of the pixel point is recorded in the corresponding element of the filter result matrix. For example, with a 10 × 10 window, sliding is performed in a binarization matrix with a step size of 1, the number of non-zero pixels in the window is counted, and when the number of non-zero pixels in the window exceeds a threshold value of 5, the number of pixels is recorded in a corresponding element of a filtering result matrix.
9. And (3) carrying out connected domain segmentation on the filtering result matrix, wherein each connected domain represents one external excitation, and for each connected domain, the morphological characteristics of the connected domain are counted, and the method comprises the following steps: spatial impact range, temporal impact range, etc.
10. And if the space influence range and the time influence range of a certain communication domain reach preset thresholds, identifying the communication domain as one-time external abnormal excitation.
11. When the outside abnormal excitation recognized in a certain area reaches a preset threshold within a certain time length range, the corresponding area gives an alarm.
As shown in fig. 3, for an embodiment, the interference environment area excitation recognition result and the static environment area recognition result are obtained. The upper graph is an original signal waterfall graph, the left half part of the visible image is in an interference environment, the right half part of the visible image is in a static environment, and a square frame in the graph shows an abnormal excitation recognition result. The lower graph is its corresponding filter result image.
According to an aspect of the present specification, there is provided an electronic device, which may be an industrial personal computer, a server, or a computer terminal.
The electronic equipment comprises a processor and a memory, wherein at least one instruction, at least one program, a code set or an instruction set is stored in the memory, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to realize the method for early warning of the damage to the optical cable in the interference environment based on the optical fiber sensing.
The electronic device includes a processor, a memory, and a network interface connected by a system bus, where the memory may include a non-volatile storage medium and an internal memory.
The non-volatile storage medium may store an operating system and a computer program. The computer program includes program instructions that, when executed, cause a processor to perform any one of the methods for interfering with environmental cable damage warning based on optical fiber sensing.
The processor is used for providing calculation and control capability and supporting the operation of the whole electronic equipment.
The internal memory provides an environment for running a computer program in a non-volatile storage medium, and the computer program, when executed by the processor, causes the processor to perform any one of the methods for disturbing the early warning of the damage to the optical cable in the environment based on optical fiber sensing.
The network interface is used for network communication, such as sending assigned tasks and the like. It will be appreciated by those skilled in the art that the structure shown in fig. 4 is a block diagram of only a portion of the structure associated with the present application, and does not constitute a limitation on the electronic device to which the present application applies, and that a particular electronic device may include more or fewer components than shown in the drawings, or may combine certain components, or have a different arrangement of components.
It should be understood that the Processor may be a Central Processing Unit (CPU), and the Processor may be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Wherein, in one embodiment, the processor is configured to execute a computer program stored in the memory to implement the steps of:
accessing a redundant fiber core of the communication optical cable into an optical fiber sensing system to be used as a vibration detector, and collecting vibration signals along the optical cable;
acquiring vibration signals acquired in a continuous space and converting the vibration signals into an image matrix;
analyzing the background clutter of the image, and judging whether each detection section is in an interference environment or a static environment;
automatically selecting a signal filtering mode according to the determined environment state, and filtering to obtain an abnormal signal;
and performing alarm judgment based on the abnormal signal.
In the description of the present specification, reference to the description of "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.
Claims (8)
1. An optical cable damage early warning method for an interference environment based on optical fiber sensing is characterized by comprising the following steps:
accessing a redundant fiber core of the communication optical cable into an optical fiber sensing system to be used as a vibration detector, and collecting vibration signals along the optical cable;
acquiring vibration signals acquired in a continuous space and converting the vibration signals into an image matrix;
analyzing the background clutter of the image, and judging whether each detection section is in an interference environment or a static environment;
automatically selecting a signal filtering mode according to the determined environment state, and filtering to obtain an abnormal signal;
and performing alarm judgment based on the abnormal signal.
2. The method for pre-warning of damage to an optical cable in an interfering environment based on optical fiber sensing as claimed in claim 1, further comprising: dividing the whole optical fiber link into a plurality of detection units at equal intervals; splicing the vibration signals collected by a plurality of detection units which are continuous in space, and converting the spliced data matrix into an image matrix.
3. The method for pre-warning of damage to an optical cable in an interfering environment based on optical fiber sensing as claimed in claim 2, further comprising: in the image matrix, sliding according to the size of a preset window and a preset step length, and sequentially calculating and recording the background clutter characteristics of data in the window area; sequentially counting the percentage of each column of the image matrix exceeding the background clutter characteristic threshold value, and recording the columns exceeding the background clutter characteristic threshold value percentage and exceeding a preset value as disturbance points with larger background disturbance; according to a space division threshold value, carrying out region division on disturbance points in a detection region; and obtaining the environmental state of each detection section in the optical fiber link based on the region division result.
4. The optical fiber sensing-based disturbing environment cable breakage warning method as claimed in claim 3, further comprising: extracting an image in a section in an interference environment, calculating an image segmentation threshold value by using a maximum inter-class variance method, and binarizing the extracted image according to the image segmentation threshold value; in the binarization matrix, sliding according to a preset window and a preset step length, counting the number of non-zero pixel points in the window, and if the number of the non-zero pixel points in the window exceeds a threshold value, recording the number value of the pixel points into a corresponding element of a filtering result matrix.
5. The method for pre-warning of damage to an optical cable in an interfering environment based on optical fiber sensing as claimed in claim 3, further comprising: for a section in a static environment, extracting images in the section, and calculating the median of all pixel values in the extracted images as an image segmentation threshold; and carrying out binarization on the extracted image according to an image segmentation threshold value: in the binarization matrix, sliding according to a preset window and a preset step length, counting the number of non-zero pixel points in the window, and if the number of the non-zero pixel points in the window exceeds a threshold value, recording the number value of the pixel points into a corresponding element of a filtering result matrix.
6. The method for early warning of damage to an optical cable in an interference environment based on optical fiber sensing as claimed in claim 4 or 5, further comprising: dividing connected domains of the filtering result matrix, wherein each connected domain represents one external excitation; for each connected domain, counting the morphological characteristics of the connected domain; if the morphological characteristics of a certain connected domain reach a preset threshold value, identifying the connected domain as an external abnormal excitation; when the identified external abnormal excitation reaches a preset threshold value within a certain time length range in a certain area, an alarm is sent out in the corresponding area.
7. An interference environment optical cable damage early warning system based on optical fiber sensing is used for realizing the method of any one of claims 1 to 6, and is characterized in that the system comprises:
the vibration detector is realized by accessing a redundant fiber core of the communication optical cable into the optical fiber sensing system and is used for collecting vibration signals along the optical cable;
signal processing means for:
acquiring vibration signals acquired in a continuous space and converting the vibration signals into an image matrix;
analyzing the background clutter of the image, and judging whether each detection section is in an interference environment or a static environment;
automatically selecting a signal filtering mode according to the determined environment state, and filtering to obtain an abnormal signal;
and performing alarm judgment based on the abnormal signal.
8. An electronic device, comprising a processor and a memory, wherein at least one instruction, at least one program, a set of codes, or a set of instructions is stored in the memory, and the at least one instruction, the at least one program, the set of codes, or the set of instructions is loaded and executed by the processor to implement the method for pre-warning of disturbance environment optical cable damage based on optical fiber sensing according to any one of claims 1 to 6.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014145710A (en) * | 2013-01-30 | 2014-08-14 | Kajima Corp | Land divider, storage method, and sectioning method |
| CN108629932A (en) * | 2018-06-22 | 2018-10-09 | 苏州热工研究院有限公司 | A kind of fiber grating perimeter security system alarm method of calmodulin binding domain CaM information |
| CN210244554U (en) * | 2019-09-06 | 2020-04-03 | 南宁冠泰电子科技有限公司 | Wind and rain interference resisting detection device based on optical fiber vibration early warning system |
| CN215769956U (en) * | 2021-08-23 | 2022-02-08 | 武汉新楚电力集团有限公司 | Optical fiber perimeter protection system |
| CN114166331A (en) * | 2021-12-03 | 2022-03-11 | 武汉理工光科股份有限公司 | Non-threat signal identification method and device, electronic equipment and storage medium |
| CN114323248A (en) * | 2021-12-31 | 2022-04-12 | 郑州信大先进技术研究院 | Four-channel buried optical cable distributed optical fiber vibration sensing early warning method and system |
| CN114387748A (en) * | 2022-01-29 | 2022-04-22 | 湖北闪复管道科技有限公司 | Anti-interference perimeter intrusion alarm system based on positioning type optical fiber multi-dimensional protection |
| US20220299481A1 (en) * | 2019-04-22 | 2022-09-22 | King Abdullah University Of Science And Technology | Signal processing algorithm for detecting red palm weevils using optical fiber |
-
2022
- 2022-09-22 CN CN202211157283.1A patent/CN115580347A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014145710A (en) * | 2013-01-30 | 2014-08-14 | Kajima Corp | Land divider, storage method, and sectioning method |
| CN108629932A (en) * | 2018-06-22 | 2018-10-09 | 苏州热工研究院有限公司 | A kind of fiber grating perimeter security system alarm method of calmodulin binding domain CaM information |
| US20220299481A1 (en) * | 2019-04-22 | 2022-09-22 | King Abdullah University Of Science And Technology | Signal processing algorithm for detecting red palm weevils using optical fiber |
| CN210244554U (en) * | 2019-09-06 | 2020-04-03 | 南宁冠泰电子科技有限公司 | Wind and rain interference resisting detection device based on optical fiber vibration early warning system |
| CN215769956U (en) * | 2021-08-23 | 2022-02-08 | 武汉新楚电力集团有限公司 | Optical fiber perimeter protection system |
| CN114166331A (en) * | 2021-12-03 | 2022-03-11 | 武汉理工光科股份有限公司 | Non-threat signal identification method and device, electronic equipment and storage medium |
| CN114323248A (en) * | 2021-12-31 | 2022-04-12 | 郑州信大先进技术研究院 | Four-channel buried optical cable distributed optical fiber vibration sensing early warning method and system |
| CN114387748A (en) * | 2022-01-29 | 2022-04-22 | 湖北闪复管道科技有限公司 | Anti-interference perimeter intrusion alarm system based on positioning type optical fiber multi-dimensional protection |
Non-Patent Citations (1)
| Title |
|---|
| 蔡海文;叶青;王照勇;卢斌;: "基于相干瑞利散射的分布式光纤声波传感技术", 激光与光电子学进展, no. 05, 10 March 2020 (2020-03-10) * |
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