ODF port identification method and system, electronic equipment, storage medium and product

Abstract

The invention provides an ODF port identification method and system, electronic equipment, a storage medium and a product, and the method comprises the steps: transmitting wide-spectrum laser to an optical fiber transmission link, and obtaining a reflection signal of a grating group corresponding to the optical fiber transmission link to the wide-spectrum laser; determining a grating identifier based on at least one signal wavelength of the reflected signal, and determining a target ODF port corresponding to the grating identifier based on a target association relationship; wherein the target association relationship is used for indicating the corresponding relationship between the grating identifier of each grating group in the ODF equipment and the ODF port connected with the grating group, and the wavelength combinations of the grating groups in the tail fibers of different ODF ports in the same ODF equipment are different; and determining that the target ODF port is an ODF port connected with the optical fiber transmission link.

Description

Technical Field

[0001] The present disclosure relates to the technical field of transmission and bearing, and in particular to an ODF port identification method, system, electronic device, storage medium and product. Background Art

[0002] Optical Distribution Frame (ODF) is an indispensable communication device in optical fiber communication, mainly used for fiber optic terminal and fiber optic scheduling. In the communication operator's computer room, both the optical cable and the optical port on the equipment side need to be terminated or connected on the ODF. Therefore, there are often a large number of ODF patch cables in the computer room.

[0003] Due to the need for business adjustment and optical link troubleshooting, how to quickly find the terminal position of a jumper fiber in the ODF is an urgent practical need. The traditional way is to find it by manually looking for labels attached to the ODF unit ports one by one. In actual applications, due to the large workload and low efficiency of finding, and the problems of label shedding and untimely update, the accuracy and convenience are very low. Summary of the invention

[0004] The embodiments of the present disclosure at least provide an ODF port identification method, system, electronic device, storage medium and product.

[0005] In a first aspect, an embodiment of the present disclosure provides an ODF port identification method, wherein a pigtail of the ODF port is inscribed with a grating group corresponding to a specified wavelength combination, and the method comprises: Sending a broad-spectrum laser to an optical fiber transmission link, and obtaining a reflection signal of the broad-spectrum laser from a grating group corresponding to the optical fiber transmission link; Based on at least one signal wavelength of the reflected signal, a grating identifier is determined, and based on a target association relationship, a target ODF port corresponding to the grating identifier is determined; wherein the target association relationship is used to indicate a corresponding relationship between a grating identifier of each grating group in an ODF device and an ODF port to which the grating group is connected, and the wavelength combinations of grating groups in pigtails of different ODF ports in the same ODF device are different; The target ODF port is determined to be the ODF port connected to the optical fiber transmission link.

[0006] In an optional implementation manner, determining the grating identifier based on at least one signal wavelength of the reflected signal includes: Decomposing the reflected signal to obtain at least one single optical signal; wherein each single optical signal corresponds to a wavelength, and different single optical signals correspond to different wavelengths; Convert each of the single-channel optical signals into an electrical signal, and process the electrical signal to obtain at least one signal wavelength contained in the reflected signal; The grating identification is determined based on a combination of the at least one signal wavelength.

[0007] In an optional implementation manner, the number of the reflected signal is multiple; and the step of determining the target ODF port corresponding to the grating identifier based on the target association relationship includes: determining a signal receiving time of each of the reflected signals; Determine the position of the ODF to which the grating group corresponding to each of the reflected signals belongs based on the signal reception time; A target ODF port corresponding to the grating identifier is determined based on the position and the target association relationship.

[0008] In an optional implementation manner, at least one signal wavelength corresponding to different grating groups is not completely the same.

[0009] In a second aspect, an embodiment of the present disclosure provides an ODF port identification system, including: a signal transmitter, a signal transmitter, and a signal processor; The signal transmitter is used to send a wide-spectrum laser to the optical fiber transmission link; The signal transmitter is used to obtain the reflection signal of the wide-spectrum laser from the grating group corresponding to the optical fiber transmission link; The signal processor is used to determine a grating identifier based on at least one signal wavelength of the reflected signal, and determine a target ODF port corresponding to the grating identifier based on a target association relationship; wherein the target association relationship is used to indicate the correspondence between the grating identifiers of each grating group in the ODF device and the ODF port to which the grating group is connected, and the wavelength combinations of the grating groups in the pigtails of different ODF ports in the same ODF device are different; and determine that the target ODF port is the ODF port connected to the optical fiber transmission link.

[0010] In an optional implementation, the signal transmitter includes: a wide spectrum laser; the spectrum width range of the wide spectrum laser includes a preset number of wavelengths.

[0011] In an optional implementation, the signal transmitter includes: a plurality of narrow spectrum lasers; wherein each of the narrow spectrum lasers corresponds to a wavelength, and different narrow spectrum lasers correspond to different wavelengths.

[0012] In an optional embodiment, the signal transmitter includes: a circulator; wherein the circulator includes a first port, a second port and a third port, the first port is connected to the output end of the signal transmitter, the second port is connected to the input end of the signal processor, and the third port is connected to the connection interface of the optical fiber transmission link; the broadband laser flows to the optical fiber transmission link through the first port and the third port, and the reflected signal flows to the signal processor through the third port and the second port.

[0013] In an optional implementation, the signal processor comprises: a demultiplexer, a photoelectric detection device and a signal processing unit; The demultiplexer is used to decompose the reflected signal to obtain multiple single-channel optical signals, and input the multiple single-channel optical signals into corresponding photoelectric detection devices; The photoelectric detection device is used to convert each of the single-channel optical signals into an electrical signal; The signal processing unit is used to process the electrical signal to obtain at least one signal wavelength contained in the reflected signal, and determine the grating identifier based on a combination of the at least one signal wavelength; and determine the target ODF port corresponding to the grating identifier based on the target association relationship.

[0014] In an optional implementation, there are multiple photoelectric detection devices, and each photoelectric detection device is used to process an optical signal of one wavelength.

[0015] In an optional implementation manner, the signal processing unit is further used to: determining a signal receiving time of each of the reflected signals; Determine the position of the ODF to which the grating group corresponding to each of the reflected signals belongs based on the signal reception time; A target ODF port corresponding to the grating identifier is determined based on the position and the target association relationship.

[0016] In an optional implementation, the system further includes: a display unit, configured to display a processing result of the signal processing unit; or, to obtain input information of the ODF port identification system and transmit the input information to the signal processing unit.

[0017] In a third aspect, an embodiment of the present disclosure further provides an electronic device, comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate via the bus, and when the machine-readable instructions are executed by the processor, the steps of the above-mentioned first aspect, or any possible implementation of the first aspect are performed.

[0018] In a fourth aspect, an embodiment of the present disclosure further provides a non-volatile computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, executes the steps of the above-mentioned first aspect, or any possible implementation of the first aspect.

[0019] In a fifth aspect, an embodiment of the present disclosure further provides a computer program product, which is stored in a storage medium and is executed by at least one processor to perform the steps in the above-mentioned first aspect, or any possible implementation of the first aspect.

[0020] The present disclosure provides an ODF port identification method, system, electronic device, storage medium and product. In an embodiment of the present disclosure, first, a signal transmitter can send a wide-spectrum laser to an optical fiber transmission link, and obtain a reflection signal of the wide-spectrum laser by a grating group corresponding to the optical fiber transmission link through a signal transmitter; then, a signal processor can determine a grating identifier based on at least one signal wavelength of the reflection signal, and determine a target ODF port corresponding to the grating identifier based on a target association relationship; wherein the target association relationship is used to indicate the correspondence between the grating identifier of each grating group in an ODF device and the ODF port to which the grating group is connected, and the wavelength combination of the grating group in the pigtail of different ODF ports in the same ODF device is different; and the target ODF port is determined to be the ODF port connected to the optical fiber transmission link.

[0021] In the above implementation, the ODF port is located by performing wavelength analysis on the reflected signal of the wide-spectrum laser through the grating group corresponding to the optical fiber transmission link. This can quickly detect the port position of the optical fiber link to be tested (such as a jumper fiber or a certain optical cable core) on the ODF, and can achieve long-distance and cross-machine room testing.

[0022] In order to make the above-mentioned objectives, features and advantages of the present disclosure more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following is a brief introduction to the drawings required for use in the embodiments. The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and are used together with the specification to illustrate the technical solutions of the present disclosure. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can also be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of an ODF port identification system provided by an embodiment of the present disclosure is shown; Figure 2 A schematic diagram showing reflection of a Bragg grating to a wavelength provided by an embodiment of the present disclosure is shown; Figure 3 A schematic diagram showing a test of a jumper by an ODF port identification system provided by an embodiment of the present disclosure is shown; Figure 4 A connection diagram showing the composition structure of an ODF port identification system provided by an embodiment of the present disclosure; Figure 5 A schematic diagram showing another ODF port identification system testing a jumper provided by an embodiment of the present disclosure; Figure 6 A flow chart of an ODF port identification method provided by an embodiment of the present disclosure is shown; Figure 7 A schematic diagram of an electronic device provided by an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The components of the embodiments of the present disclosure generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the drawings is not intended to limit the scope of the present disclosure for protection, but merely represents the selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present disclosure.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] The term "and / or" herein only describes an association relationship, indicating that three relationships may exist. For example, A and / or B may represent the following three situations: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C may represent including any one or more elements selected from the set consisting of A, B, and C.

[0028] Research has found that optical fiber distribution frames (ODFs) are indispensable communication equipment in optical fiber communications, and are mainly used for fiber optic terminal and fiber optic scheduling. In the equipment room of a communication operator, both the optical cable and the optical port on the equipment side need to be terminated or connected on the ODF. Therefore, there are often a large number of ODF fiber jumpers in the equipment room.

[0029] Due to the need for business adjustment and optical link troubleshooting, how to quickly find the terminal position of a jumper fiber in the ODF is an urgent practical need. The traditional way is to find it by manually looking for labels attached to the ODF unit ports one by one. In actual applications, due to the large workload and low efficiency of finding, and the problems of label shedding and untimely update, the accuracy and convenience are very low.

[0030] Based on the above research, the present disclosure provides an ODF port identification method, system, electronic device, storage medium and product. In an embodiment of the present disclosure, first, a signal transmitter can send a wide-spectrum laser to an optical fiber transmission link, and obtain a reflection signal of the wide-spectrum laser by a grating group corresponding to the optical fiber transmission link through a signal transmitter; then, a signal processor can determine a grating identifier based on at least one signal wavelength of the reflection signal, and determine a target ODF port corresponding to the grating identifier based on a target association relationship; wherein the target association relationship is used to indicate the correspondence between the grating identifier of each grating group in the ODF device and the ODF port to which the grating group is connected, and the wavelength combination of the grating group in the pigtail of different ODF ports in the same ODF device is different; and the target ODF port is determined to be the ODF port connected to the optical fiber transmission link.

[0031] In the above implementation, the ODF port is located by performing wavelength analysis on the reflected signal of the wide-spectrum laser through the grating group corresponding to the optical fiber transmission link. This can quickly detect the port position of the optical fiber link to be tested (such as a jumper fiber or a certain optical cable core) on the ODF, and can achieve long-distance and cross-machine room testing.

[0032] To facilitate understanding of this embodiment, an ODF port identification method disclosed in an embodiment of the present disclosure is first introduced in detail. The execution subject of the ODF port identification method provided in the embodiment of the present disclosure is generally an electronic device with certain computing capabilities. In some possible implementations, the ODF port identification method can be implemented by a processor calling a computer-readable instruction stored in a memory.

[0033] See also Figure 1 As shown, it is a schematic diagram of an ODF port identification system provided by an embodiment of the present disclosure, such as Figure 1 As shown, the system includes: a signal transmitter 100, a signal transmitter 200, and a signal processor 300.

[0034] The signal transmitter 100 is used to send a wide-spectrum laser to an optical fiber transmission link.

[0035] The signal transmitter 200 is used to obtain the reflection signal of the wide-spectrum laser from the grating group corresponding to the optical fiber transmission link.

[0036] The signal processor 300 is used to determine a grating identifier based on at least one signal wavelength of the reflected signal, and determine a target ODF port corresponding to the grating identifier based on a target association relationship; wherein the target association relationship is used to indicate the correspondence between the grating identifiers of each grating group in the ODF device and the ODF port to which the grating group is connected, and the wavelength combinations of the grating groups in the pigtails of different ODF ports in the same ODF device are different; and determine that the target ODF port is the ODF port connected to the optical fiber transmission link.

[0037] In the disclosed embodiment, each ODF port of the ODF device is connected to a pigtail, and each pigtail is engraved with a grating corresponding to a specified wavelength combination; wherein, when gratings corresponding to multiple wavelengths are engraved, the gratings corresponding to multiple wavelengths are also called a grating group, and the multiple signal wavelengths corresponding to different grating groups are not exactly the same.

[0038] Here, the grating written in the pigtail can also be called a Bragg grating. A Bragg grating is a reflective fiber grating with a length of about a few millimeters. It can reflect a light signal of a certain wavelength, while light signals of other wavelengths can pass through the grating without loss. Figure 2 As shown, the grating in the figure only reflects λ2. Usually, the wavelength reflected by a Bragg grating (hereinafter referred to as "grating") is also called the wavelength of the grating. For example, a grating that reflects a wavelength of λ2 is also called grating λ2. The wavelength of the grating can be controlled by adjusting the period of the grating (the period of change in the core refractive index) when writing the grating in the optical fiber.

[0039] After the pigtail of the ODF port is engraved with a grating of a specified wavelength, the wavelength information of the corresponding grating can be read out using the ODF port identification system provided by the technical solution of the present disclosure in the optical fiber transmission link connected to the ODF port.

[0040] From the above description, it can be known that when gratings corresponding to multiple wavelengths are usually written in the pigtail of the ODF port, the gratings corresponding to multiple wavelengths are also called grating groups. Figure 3As shown, the technical solution disclosed in the present invention includes a grating group 1 engraved in the ODF pigtail and an instrument 2 for reading the grating wavelength (i.e., an ODF port identification system). The grating group 1 is usually a combination of multiple gratings with different wavelengths, such as λ1, λ2, and λ5. Different wavelength combinations form a grating ID (i.e., a grating identifier), which corresponds to an ODF port (such as row 1 column 3). When the optical fiber transmission link to which the instrument 2 is connected contains a grating ID formed by the grating group 1, the instrument 2 sends a broadband laser to the optical fiber transmission link. The broadband laser reflects the optical signal of the corresponding wavelength at the grating group 1. The instrument 2 reads the signal wavelength in the received reflected signal, and displays the port (row and column) of the ODF according to the correspondence between the received wavelength combination and the ODF port.

[0041] The capacity of an ODF device (or rack) is usually 576 cores to 720 cores, with a total of 48 to 60 rows, 12 ports in each row, and one port corresponds to one wavelength. In the disclosed embodiment, gratings of different wavelengths can be combined to form a grating ID, and a one-to-one correspondence between the grating ID and the ODF port can be established (i.e., the target association relationship described above). Next, the ODF port can be identified using the grating ID based on the target association relationship.

[0042] Since the writing of gratings requires a certain cost, the number of gratings for each grating ID should be as small as possible. For example, 3 wavelengths can be combined from 18 wavelengths (λ1, λ2, λ3...λ18) to form a total of 816 grating IDs, among which the number of grating IDs is required to exceed the number of ODF ports to be identified, thereby ensuring the uniqueness of the ODF port identification.

[0043] For example, the following Table 1 shows the correspondence between some ODF ports and wavelength combinations when 3 wavelengths are combined from 18 wavelengths. Each wavelength in λ1, λ2, λ3, ... λ18 is not a common wavelength for communication to avoid conflict with communication signals.

[0044] Table 1 Example of the correspondence between grating ID and ODF port

[0045] It can be seen from the target association relationship shown in Table 1 that the correspondence between the grating identification (i.e., grating ID) of each grating group in the ODF device and the ODF port connected to the grating group can be determined through the above target association relationship. For example, the grating ID (i.e., grating identification) composed of gratings λ1, λ4, and λ5 corresponds to the ODF port in row 3 and column 8. As shown in Table 1, different ODF ports correspond to different grating identifications, that is, different ODF ports have different wavelength combinations of grating groups in pigtails.

[0046] In the following implementation, the composition and principle of the ODF port identification system are explained by taking the grating group 1 as a combination of any three wavelengths among the 18 wavelengths (λ1, λ2, λ3, ..., λ18) as an example.

[0047] In the embodiment of the present disclosure, the signal transmitter may be a wide spectrum laser 21. The wide spectrum laser 21 may be a wide spectrum laser; the spectrum width range of the wide spectrum laser includes a preset number of wavelengths. For example, the spectrum width range of the wide spectrum laser includes λ1, λ2, λ3...λ18.

[0048] In the disclosed embodiment, the wide spectrum laser 21 may also be a plurality of narrow spectrum lasers; wherein each narrow spectrum laser corresponds to a wavelength, and different narrow spectrum lasers correspond to different wavelengths. For example, the wide spectrum laser 21 may be formed by combining a plurality of narrow spectrum lasers, for example, by combining 18 narrow spectrum lasers with wavelengths of λ1, λ2, λ3, ... λ18.

[0049] In the embodiments of the present disclosure, Figure 4 As shown, the signal transmitter includes: a circulator 22; wherein the circulator includes a first port, a second port and a third port, the first port is connected to the output end of the signal transmitter, the second port is connected to the input end of the signal processor, and the third port is connected to the connection interface of the optical fiber transmission link; the wide-spectrum laser flows to the optical fiber transmission link through the first port and the third port, and the reflected signal flows to the signal processor through the third port and the second port.

[0050] like Figure 4 As shown, the circulator 22 includes three ports, namely, a first port 221, a second port 223 and a third port 222. The circulator 22 is a multi-port device for unidirectional signal transmission. The optical signal can be transmitted from the first port 221 to the third port 222, and from the third port 222 to the second port 223, but cannot be transmitted from the second port 223 to the third port 222, and cannot be transmitted from the third port 222 to the first port 221. The signals transmitted in the reverse direction will be isolated.

[0051] For example, the broadband laser can flow to the optical fiber transmission link through the first port 221 to the third port 222; wherein the third port 222 is connected to the test interface 27 of the ODF port identification system (i.e., the connection interface of the optical fiber transmission link); the reflection signal of the broadband laser by the grating group can flow to the signal processor through the third port 222 and the second port 223.

[0052] In the embodiments of the present disclosure, Figure 4As shown, the signal processor includes: a demultiplexer 23 , a photoelectric detection device 24 and a signal processing unit 25 .

[0053] A demultiplexer, used for decomposing the reflected signal to obtain a plurality of single-channel optical signals, and inputting the plurality of single-channel optical signals into corresponding photoelectric detection devices; A photoelectric detection device, used to convert each of the single-channel optical signals into an electrical signal; wherein there are multiple photoelectric detection devices, and each of the photoelectric detection devices is used to process an optical signal of one wavelength; A signal processing unit is used to process the electrical signal to obtain at least one signal wavelength contained in the reflected signal, and determine the grating identifier based on a combination of the at least one signal wavelength; and determine a target ODF port corresponding to the grating identifier based on the target association relationship.

[0054] like Figure 4 As shown, the number of photoelectric detection devices is multiple, and each photoelectric detection device is used to process an optical signal of one wavelength. If grating group 1 is a combination of any three wavelengths among the 18 wavelengths (λ1, λ2, λ3, ... λ18), the number of the photoelectric detection devices can be set to 18, and one photoelectric detection device corresponds to one wavelength among the 18 wavelengths.

[0055] like Figure 4 As shown, the output end of the demultiplexer 23 is connected to the input end of each photodetection device 24 , and the output end of each photodetection device is connected to the input end of the signal processing unit 25 .

[0056] In the embodiment of the present disclosure, the demultiplexer 23 is a wavelength division multiplexer that can demultiplex one optical signal containing λ1, λ2, λ3 ... λ18 into 18 single-wavelength optical signals. The number of output ports of the demultiplexer 23 is associated with the number of wavelengths included in the spectrum width range of the wide-spectrum laser. For example, when the spectrum width range includes 18 wavelengths, the demultiplexer 23 can have 18 wavelength output ports 2301, 2302, 2303 ... 2318, which output wavelengths λ1, λ2, λ3 ... λ18 respectively.

[0057] PD (Photodiode) 24 is a photoelectric detection device. When PD detects an optical signal, it can convert the optical signal into a corresponding electrical signal. Each output port of the demultiplexer 23 is connected to a PD, for example Figure 4 From right to left in the middle are 2301, 2302...2318.

[0058] The signal processing unit 25 can determine the signal wavelength contained in the reflected signal received by the ODF port identification system according to the electrical signal output by the PD 24, and then determine the port corresponding to the ODF (ie, the target ODF port) according to the corresponding relationship between the combination of these signal wavelengths and the ODF port.

[0059] In the embodiments of the present disclosure, Figure 4 As shown, the ODF port identification system further includes: a display unit 26, which is used to display the processing result of the signal processing unit; or to obtain input information of the ODF port identification system and transmit the input information to the signal processing unit.

[0060] Here, the processing result of the signal processing unit may be the port information of the target ODF port, for example, the port information of the target ODF port may be: the ODF port of row 4 and column 10. In addition, the display unit 26 may also obtain input information and transmit the input information to the signal processing unit 25 .

[0061] Typically, a complete optical fiber transmission link is often connected to multiple ODF ports. For example, the two ends of an optical fiber transmission link are terminated on the ODF-A rack and the ODF-B rack, respectively. Figure 5 The transmission rate of optical signals in optical fibers is about 0.2 m / ns. Since the transmission distances from the ODF-A rack and the ODF-B rack to the ODF port identification system are different, the ODF-A rack and the ODF-B rack can be distinguished based on the difference in the received reflection signal time.

[0062] Based on this, the signal processing unit 25 is further used for: Determine the signal receiving time of each of the reflected signals; determine the position of the ODF to which the grating group corresponding to each of the reflected signals belongs based on the signal receiving time; and then determine the target ODF port corresponding to the grating identifier based on the position and the target association relationship.

[0063] In the embodiment of the present disclosure, the signal processing unit 25 can determine the signal receiving time of each reflected signal according to the arrival time of the reflected signal. Figure 5 As shown, the time at which the reflection signal of the ODF port x to the broad spectrum laser reaches the signal processing unit 25 is different from the time at which the reflection signal of the ODF port y to the broad spectrum laser reaches the signal processing unit 25. At this time, the position of the ODF to which the grating group corresponding to each reflection signal belongs can be determined according to the difference in signal reception time. For example, the ODF rack to which each reflection signal belongs can be determined according to the difference in signal reception time. After determining the position, the ODF port corresponding to the grating identifier can be determined in the ODF rack to which it belongs as the target ODF port according to the target association relationship.

[0064] From the above description, it can be seen that a broadband laser can send broadband lasers with a certain pulse width (for example, 5ns to 20μs adjustable). When there are multiple grating IDs in a fiber link, the ODF port identification system can distinguish different ODF ports in a link based on the different times of the received reflection signals.

[0065] In the case of multiple grating groups in a fiber transmission link, if the reflection coefficient of the grating (the power ratio of the reflected signal of a certain wavelength to the incident signal) is close to 1, the signal of the corresponding wavelength will not be able to pass through the grating. For example, Figure 5 In the example, if both the ODF port x in ODF-A and the ODF port y in ODF-B include the grating λ1, the optical signal with wavelength λ1 will be almost reflected back to the ODF port identification system at the port x in ODF-A. In this way, the optical signal will not reflect the optical signal with wavelength λ1 at the ODF port y in ODF-B, thus causing the test error of the ODF-B port. Therefore, the reflection coefficient of the grating described in the present application is less than 1.0, for example, it can be 0.1 to 0.3.

[0066] Combine the following Figure 3 and Figure 4 The working principle of the ODF port identification system provided by the disclosed technology is introduced.

[0067] like Figure 3 As shown, if one end of a patch fiber is connected to the ODF port at row 4, column 10 of the ODF rack, here, the ODF port identification system can be connected to the other end of the patch fiber for testing. The specific test process is described as follows: The wide-spectrum laser 21 sends a wide-spectrum laser with a certain pulse width (adjustable from 5ns to 20μs), and the wide-spectrum laser reaches the ODF port through the circulator 22, the interface 27, and the jumper. When the pigtail of the ODF port is engraved with a grating group 1, it can be seen from Table 1 that the grating group 1 is a grating combination of wavelengths λ1, λ5, and λ6. In this way, when the wide-spectrum laser passes through the grating group 1, a reflection signal with wavelengths including λ1, λ5, and λ6 will be generated.

[0068] The reflected signal returns to the ODF port identification system through the jumper fiber, and enters the demultiplexer 23 through the port 223 of the circulator. The demultiplexer 23 demultiplexes the reflected signal with wavelengths including λ1, λ5, and λ6 into three optical signals with wavelengths including λ1, λ5, and λ6, and outputs them at ports 2301, 2305, and 2306 respectively. The output optical signals are converted into electrical signals by photoelectric detection devices 2401, 2405, and 2406 respectively.

[0069] The signal processing unit 25 determines that the reflected signal contains wavelengths λ1, λ5, and λ6 according to the electrical signals detected from the photoelectric detection devices 2401, 2405, and 2406, and determines that the port corresponding to the ODF is row 4 and column 10 according to the corresponding relationship between the wavelength combination and the ODF port in Table 1. Then, the test result can be seen from the display unit of the ODF port identification system.

[0070] Compared with the existing technical solutions, the main technical advantages of the disclosed technical solution are as follows: 1) Significantly shorten the ODF port identification time. Currently, the capacity of an ODF in an operator's computer room is generally 576 to 720 cores, and the number of jumper fibers connected to the equipment is as many as 300 to 400. The existing technical solution requires identifying the jumpers connected to the ODF one by one, and it usually takes more than 30 minutes to find the expected port. The disclosed technical solution connects one end of the jumper fiber to be tested to the instrument to locate the ODF terminal, which is fast and efficient.

[0071] 2) The disclosed technical solution will not damage the existing optical fiber, nor will it have any adverse impact on any existing business connected to the ODF.

[0072] 3) The detection distance of the disclosed technical solution is as long as tens of kilometers, which can meet the terminal identification requirements of the optical cable terminal ODF between different machine rooms.

[0073] 4) The test instrument of the disclosed technical solution has low cost. Since there is no need to identify the order and interval of each wavelength grating in the grating group, it is only necessary to determine which wavelength gratings the grating group contains, and the performance requirements of the optoelectronic devices in the test instrument are low.

[0074] 5) When a fiber link passes through multiple ODF connections, the specific position of the link on each ODF can be tested.

[0075] 6) The disclosed technical solution can meet the needs of customers and bring significant economic benefits. In the existing computer room, there are cases where ODF ports are occupied in vain, and the proportion of vain occupation increases year by year, which leads to a huge waste of existing jumper fibers and optical cable core resources. The disclosed technical solution can quickly check the ODF port without damaging the optical fiber or affecting the existing optical fiber business. It can quickly check the massive jumper fiber resources and the corresponding ODF terminal locations in the computer room.

[0076] Virtual occupancy of ODF ports may lead to repeated construction of optical cables and ODF racks and repeated deployment of jumper fibers, which not only causes a large increase in investment, but also causes consumption of limited space in the equipment room. The disclosed technical solution can improve the utilization rate of ODF ports, while reducing the consumption of ODF ports and equipment room space, which can reduce operating costs and improve investment benefits.

[0077] See also Figure 6 FIG. 6 is a flowchart of an ODF port identification method provided by an embodiment of the present disclosure, wherein the method includes steps S601 to S603, wherein: S601: Send a broad-spectrum laser to an optical fiber transmission link, and obtain a reflection signal of the broad-spectrum laser from a grating group corresponding to the optical fiber transmission link.

[0078] In the disclosed embodiment, a broad-spectrum laser may be sent to a fiber optic transmission link via a signal transmitter, and a reflection signal of the broad-spectrum laser from a grating group corresponding to the fiber optic transmission link may be obtained via a signal transmitter.

[0079] Here, the specific structure and working principle of the signal transmitter and the signal transmitter refer to the introduction of the above embodiments and will not be described in detail here.

[0080] S602: Determine a grating identifier based on at least one signal wavelength of the reflected signal, and determine a target ODF port corresponding to the grating identifier based on a target association relationship; wherein the target association relationship is used to indicate a correspondence between the grating identifiers of each grating group in the ODF device and the ODF port to which the grating group is connected, and the wavelength combinations of the grating groups in the pigtails of different ODF ports in the same ODF device are different.

[0081] S603: Determine that the target ODF port is the ODF port connected to the optical fiber transmission link.

[0082] In an embodiment of the present disclosure, a signal processor can determine a grating identifier based on at least one signal wavelength of a reflected signal, determine a target ODF port corresponding to the grating identifier based on a target association relationship, and determine the target ODF port as an ODF port connected to a fiber optic transmission link.

[0083] Here, the specific structure and working principle of the signal processor refer to the introduction of the above embodiment and will not be described in detail here.

[0084] In the above implementation, the ODF port is located by performing wavelength analysis on the reflected signal of the wide-spectrum laser through the grating group corresponding to the optical fiber transmission link. This can quickly detect the port position of the optical fiber link to be tested (such as a jumper fiber or a certain optical cable core) on the ODF, and can achieve long-distance and cross-machine room testing.

[0085] In an optional implementation, the above step of determining the grating identifier based on at least one signal wavelength of the reflected signal specifically includes the following steps: S11: Decomposing the reflected signal to obtain at least one single optical signal; wherein each single optical signal corresponds to a wavelength, and different single optical signals correspond to different wavelengths; S12: converting each of the single-channel optical signals into an electrical signal, and processing the electrical signal to obtain at least one signal wavelength contained in the reflected signal; S13: Determine the grating identifier based on a combination of the at least one signal wavelength.

[0086] In the embodiments of the present disclosure, Figure 4 As shown, after the reflected signal returns to the ODF port identification system through the jumper, it enters the demultiplexer 23 through the port 223 of the circulator. For example, if the grating identifications of the grating group are λ1, λ5, and λ6, the demultiplexer 23 can demultiplex a reflected signal with wavelengths including λ1, λ5, and λ6 into three single optical signals with wavelengths of λ1, λ5, and λ6, and output them at ports 2301, 2305, and 2306, respectively. The output single optical signals are converted into electrical signals by photoelectric detection devices 2401, 2405, and 2406, respectively.

[0087] The signal processing unit 25 determines that the reflected signal contains wavelengths λ1, λ5, and λ6 according to the electrical signals detected from the photoelectric detection devices 2401, 2405, and 2406. At this time, it can be determined that the grating identifier is λ1, λ5, and λ6. At this time, according to the corresponding relationship between the wavelength combination and the ODF port in Table 1, it is determined that the port corresponding to the ODF is row 4 and column 10.

[0088] In an optional implementation, when there are multiple reflected signals, the above steps determine the target ODF port corresponding to the grating identifier based on the target association relationship, specifically including the following steps: First, determining the signal receiving time of each of the reflected signals; Secondly, determining the position of the ODF to which the grating group corresponding to each of the reflected signals belongs based on the signal receiving time; Next, a target ODF port corresponding to the grating identifier is determined based on the position and the target association relationship.

[0089] In the embodiment of the present disclosure, the signal processing unit 25 can determine the signal receiving time of each reflected signal according to the arrival time of the reflected signal. Figure 5 As shown, the time at which the reflection signal of the ODF port x to the broad spectrum laser reaches the signal processing unit 25 is different from the time at which the reflection signal of the ODF port y to the broad spectrum laser reaches the signal processing unit 25. At this time, the position of the ODF to which the grating group corresponding to each reflection signal belongs can be determined according to the difference in signal reception time. For example, the ODF rack to which each reflection signal belongs can be determined according to the difference in signal reception time. After determining the position, the ODF port corresponding to the grating identifier can be determined in the ODF rack to which it belongs as the target ODF port according to the target association relationship.

[0090] In the case of multiple grating groups in a fiber transmission link, if the reflection coefficient of the grating (the power ratio of the reflected signal of a certain wavelength to the incident signal) is close to 1, the signal of the corresponding wavelength will not be able to pass through the grating. For example, Figure 5 In the example, if both the ODF port x in ODF-A and the ODF port y in ODF-B include the grating λ1, the optical signal with wavelength λ1 will be almost reflected back to the ODF port identification system at the port x in ODF-A. In this way, the optical signal will not reflect the optical signal with wavelength λ1 at the ODF port y in ODF-B, thus causing the test error of the ODF-B port. Therefore, the reflection coefficient of the grating described in the present application is less than 1.0, for example, it can be 0.1 to 0.3.

[0091] Those skilled in the art will appreciate that, in the above method of specific implementation, the order in which the steps are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of the steps should be determined by their functions and possible internal logic.

[0092] Corresponds to Figure 1 The ODF port identification method in the present disclosure also provides an electronic device 700, such as Figure 7 FIG. 7 is a schematic diagram of the structure of an electronic device 700 provided in an embodiment of the present disclosure, including: Processor 71, memory 72, and bus 73; memory 72 is used to store execution instructions, including internal memory 721 and external memory 722; the internal memory 721 is also called internal memory, which is used to temporarily store the operation data in the processor 71 and the data exchanged with the external memory 722 such as a hard disk. The processor 71 exchanges data with the external memory 722 through the internal memory 721. When the electronic device 700 is running, the processor 71 communicates with the memory 72 through the bus 73, so that the processor 71 executes the following instructions: Sending a broad-spectrum laser to an optical fiber transmission link, and obtaining a reflection signal of the broad-spectrum laser from a grating group corresponding to the optical fiber transmission link; Based on at least one signal wavelength of the reflected signal, a grating identifier is determined, and based on a target association relationship, a target ODF port corresponding to the grating identifier is determined; wherein the target association relationship is used to indicate a corresponding relationship between a grating identifier of each grating group in an ODF device and an ODF port to which the grating group is connected, and the wavelength combinations of grating groups in pigtails of different ODF ports in the same ODF device are different; The target ODF port is determined to be the ODF port connected to the optical fiber transmission link.

[0093] The embodiment of the present disclosure also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the ODF port identification method described in the above method embodiment are executed. The storage medium can be a volatile or non-volatile computer-readable storage medium.

[0094] The embodiment of the present disclosure also provides a computer program product, which carries a program code. The instructions included in the program code can be used to execute the steps of the ODF port identification method described in the above method embodiment. For details, please refer to the above method embodiment, which will not be repeated here.

[0095] The computer program product may be implemented in hardware, software or a combination thereof. In one optional embodiment, the computer program product is implemented as a computer storage medium. In another optional embodiment, the computer program product is implemented as a software product, such as a software development kit (SDK).

[0096] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In the several embodiments provided in the present disclosure, it should be understood that the disclosed system, device and method can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of the device or unit can be electrical, mechanical or other forms.

[0097] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0098] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0099] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0100] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present disclosure, which are used to illustrate the technical solutions of the present disclosure, rather than to limit them. The protection scope of the present disclosure is not limited thereto. Although the present disclosure is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present disclosure, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure, and should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An ODF port identification method, characterized in that: The pigtail of the ODF port is inscribed with a grating group corresponding to a specified wavelength combination, and the method comprises: Sending a broad-spectrum laser to an optical fiber transmission link, and obtaining a reflection signal of the broad-spectrum laser from a grating group corresponding to the optical fiber transmission link; Based on at least one signal wavelength of the reflected signal, a grating identifier is determined, and based on a target association relationship, a target ODF port corresponding to the grating identifier is determined; wherein the target association relationship is used to indicate a corresponding relationship between a grating identifier of each grating group in an ODF device and an ODF port to which the grating group is connected, and the wavelength combinations of grating groups in pigtails of different ODF ports in the same ODF device are different; The target ODF port is determined to be the ODF port connected to the optical fiber transmission link.

2. The method according to claim 1, characterized in that: The step of determining a grating identifier based on at least one signal wavelength of the reflected signal comprises: Decomposing the reflected signal to obtain at least one single optical signal; wherein each single optical signal corresponds to a wavelength, and different single optical signals correspond to different wavelengths; Convert each of the single-channel optical signals into an electrical signal, and process the electrical signal to obtain at least one signal wavelength contained in the reflected signal; The grating identification is determined based on a combination of the at least one signal wavelength.

3. The method according to claim 1, characterized in that The number of the reflected signals is multiple; the target ODF port corresponding to the grating identifier is determined based on the target association relationship, including: determining a signal receiving time of each of the reflected signals; Determine the position of the ODF to which the grating group corresponding to each of the reflected signals belongs based on the signal reception time; A target ODF port corresponding to the grating identifier is determined based on the position and the target association relationship.

4. The method according to claim 1, characterized in that At least one signal wavelength corresponding to different grating groups is not completely the same.

5. An ODF port identification system, characterized in that: include: Signal transmitter, signal transmitter, signal processor; The signal transmitter is used to send a wide-spectrum laser to the optical fiber transmission link; The signal transmitter is used to obtain the reflection signal of the wide-spectrum laser from the grating group corresponding to the optical fiber transmission link; The signal processor is used to determine a grating identifier based on at least one signal wavelength of the reflected signal, and determine a target ODF port corresponding to the grating identifier based on a target association relationship; wherein the target association relationship is used to indicate the correspondence between the grating identifiers of each grating group in the ODF device and the ODF port to which the grating group is connected, and the wavelength combinations of the grating groups in the pigtails of different ODF ports in the same ODF device are different; and determine that the target ODF port is the ODF port connected to the optical fiber transmission link.

6. The system according to claim 5, characterized in that The signal transmitter comprises: a wide spectrum laser; the spectrum width range of the wide spectrum laser includes a preset number of wavelengths.

7. The system according to claim 5, characterized in that The signal transmitter comprises: a plurality of narrow spectrum lasers; wherein each narrow spectrum laser corresponds to a wavelength, and different narrow spectrum lasers correspond to different wavelengths.

8. The system according to any one of claims 5-6, characterized in that: The signal transmitter includes: a circulator; wherein the circulator includes a first port, a second port and a third port, the first port is connected to the output end of the signal transmitter, the second port is connected to the input end of the signal processor, and the third port is connected to the connection interface of the optical fiber transmission link; the wide-spectrum laser flows to the optical fiber transmission link through the first port and the third port, and the reflected signal flows to the signal processor through the third port and the second port.

9. The system according to any one of claims 5-6, characterized in that: The signal processor comprises: a demultiplexer, a photoelectric detection device and a signal processing unit; The demultiplexer is used to decompose the reflected signal to obtain multiple single-channel optical signals, and input the multiple single-channel optical signals into corresponding photoelectric detection devices; The photoelectric detection device is used to convert each of the single-channel optical signals into an electrical signal; The signal processing unit is used to process the electrical signal to obtain at least one signal wavelength contained in the reflected signal, and determine the grating identifier based on a combination of the at least one signal wavelength; and determine the target ODF port corresponding to the grating identifier based on the target association relationship.

10. The system according to claim 9, characterized in that There are multiple photoelectric detection devices, and each of the photoelectric detection devices is used to process an optical signal of one wavelength.

11. The system according to claim 9, characterized in that The signal processing unit is further used for: determining a signal receiving time of each of the reflected signals; Determine the position of the ODF to which the grating group corresponding to each of the reflected signals belongs based on the signal reception time; A target ODF port corresponding to the grating identifier is determined based on the position and the target association relationship.

12. The system according to claim 9, characterized in that The system further includes: a display unit, configured to display the processing result of the signal processing unit; or to obtain input information of the ODF port identification system and transmit the input information to the signal processing unit.

13. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate via the bus, and when the machine-readable instructions are executed by the processor, the steps of the ODF port identification method according to any one of claims 1 to 4 are performed.

14. A non-transitory computer-readable storage medium, characterized in that The non-transitory computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the ODF port identification method according to any one of claims 1 to 4 are executed.

15. A computer program product, characterized in that The computer program product is stored in a storage medium, and the program product is executed by at least one processor to implement the steps of the ODF port identification method according to any one of claims 1 to 4.

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