CN114362820B - WDM wavelength channel identification method, device, equipment and readable storage medium - Google Patents
WDM wavelength channel identification method, device, equipment and readable storage medium Download PDFInfo
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Abstract
The application relates to a WDM wavelength channel identification method, a device, equipment and a readable storage medium, and relates to the technical field of communication optical path testing, comprising the steps of obtaining a two-dimensional array comprising a wavelength array and an insertion loss array of a wavelength channel branch; obtaining a sum insertion loss value according to the minimum insertion loss value and a preset insertion loss value in the insertion loss array; obtaining a first wavelength value corresponding to a first insertion loss value adjacent to the insertion loss value and a second wavelength value corresponding to a second insertion loss value from the wavelength array, calculating to obtain a channel center wavelength value and a bandwidth value corresponding to a preset insertion loss value, determining an initial WDM type of a wavelength channel branch, and obtaining a channel nominal center wavelength value with the minimum difference value between the channel center wavelength value; and finally, identifying the actual WDM type of the wavelength channel branch based on the channel center wavelength value, the channel nominal center wavelength value and the bandwidth upper limit value of the initial WDM type. The method and the device can effectively identify the types of the wavelength channel branches and improve the identification efficiency.
Description
Technical Field
The present disclosure relates to the field of communications optical path testing technologies, and in particular, to a WDM wavelength channel identification method, device, apparatus, and readable storage medium.
Background
The 5G forwarding network uses three optical wavelength division multiplexing devices such as LWDM (LAN WDM), MWDM (Dense WDM), CWDM (sparse WDM), etc., so that the function of transmitting the multi-wavelength signals in the same optical fiber can be realized, and the network construction cost is reduced. The two-dimensional data table of one channel, that is, insertion loss-wavelength data, also called insertion loss spectrum of a wavelength channel, is finally obtained in any method for testing a WDM (Wavelength Division Multiplexing ) device, however, because a plurality of wavelength channel branch ports (see λc1 branch, λci branch and λcn branch shown in fig. 1) need to be tested in consideration of one WDM, passband width specification values of all wavelength channel branches in the WDM device are the same, but passband width specification values of different wavelength channel branches in the WDM device are not necessarily the same, so that a three-dimensional array of insertion loss, wavelength and branch port can be obtained. Therefore, by analyzing the insertion loss spectrum data of each wavelength channel branch, the analysis results of parameters such as insertion loss, center wavelength, channel bandwidth, adjacent isolation, non-adjacent isolation and the like of the single wavelength channel branch can be obtained.
However, in performing data analysis, for a single WDM device class, some parameter settings required for the analysis process are determined since the device class is known; however, for a hybrid WDM device like lwdm+cwdm, there is either an LWDM branch (i.e., λc1 branch) or a CWDM branch (i.e., λci+1 branch) in the wavelength channel branch ports, as shown in fig. 2, if the wavelength channel test data does not include the class of the wavelength channel branch, it is necessary to determine whether the branch is analyzed according to the parameters of LWDM or CWDM when analyzing the data.
In the related art, when analyzing data, the following two methods are generally used to determine whether the branch is analyzed according to the parameter setting of LWDM or CWDM: the first is that each time a wavelength channel branch is tested during testing, the category information of the wavelength channel branch is added into the testing data, and the data analysis is performed according to the category information of the branch; the second is to perform trial analysis, i.e. manually judge which type the wavelength channel branch belongs to according to the general shape of the insertion loss spectrum, and then perform data analysis according to the corresponding type.
For the first method, a procedure is added in the test process, namely, the category information of the wavelength channel branch is required to be added, but the method cannot be realized because certain test systems or certain test occasions do not have the opportunity of adding the wavelength channel branch type information to the testers; for the second method, each wavelength channel branch must be manually judged, so that the efficiency is obviously problematic, and a plurality of inconveniences are brought to automatic data analysis.
Disclosure of Invention
The application provides a WDM wavelength channel identification method, a device, equipment and a readable storage medium, which are used for solving the problems that wavelength channel branches of WDM in related technologies cannot be effectively identified and identification efficiency is low.
In a first aspect, a WDM wavelength channel identification method is provided, including the steps of:
acquiring a two-dimensional array of a certain wavelength channel branch, wherein the two-dimensional array comprises a wavelength array and an insertion loss array, and elements in the wavelength array and elements in the insertion loss array have a one-to-one correspondence;
obtaining a minimum insertion loss value in the insertion loss array, and calculating a sum insertion loss value according to the minimum insertion loss value and a preset insertion loss value;
acquiring a first wavelength value corresponding to the first insertion loss value adjacent to the insertion loss value and a second wavelength value corresponding to the second insertion loss value from the wavelength array;
calculating a channel center wavelength value and a bandwidth value corresponding to the preset insertion loss value based on the first wavelength value and the second wavelength value;
determining an initial WDM type of the wavelength channel branch based on the preset insertion loss value and the bandwidth value, and acquiring a channel nominal center wavelength value with the minimum difference value with the channel center wavelength value from a nominal center wavelength array of the initial WDM type;
the actual WDM type of the wavelength channel branch is identified based on the channel center wavelength value, the channel nominal center wavelength value, and the bandwidth upper limit of the initial WDM type.
In some embodiments, the identifying the actual WDM type of the wavelength channel branch based on the channel center wavelength value, the channel nominal center wavelength value, and the bandwidth upper limit for the initial WDM type comprises:
judging whether the channel center wavelength value is lambda 1o ±X max In the range of/2, where lambda 1o For nominal central wavelength value of channel, X max A bandwidth upper limit value for the initial WDM type;
if yes, the initial WDM type is used as the actual WDM type of the wavelength channel branch;
if not, outputting that the wavelength channel branch does not belong to any one of LWDM type, MWDM type and CWDM type.
In some embodiments, the obtaining, from the wavelength array, a first wavelength value corresponding to the first insertion loss value adjacent to the insertion loss value and a second wavelength value corresponding to the second insertion loss value includes:
obtaining a first index value corresponding to the first insertion loss value adjacent to the insertion loss value and a second index value corresponding to the second insertion loss value from the insertion loss array;
and acquiring a first wavelength value corresponding to the first index value and a second wavelength value corresponding to the second index value from the wavelength array according to the corresponding relation between the elements in the wavelength array and the elements in the insertion loss array.
In some embodiments, the calculating, based on the first wavelength value and the second wavelength value, a channel center wavelength value and a bandwidth value corresponding to the preset insertion loss value includes:
calculating an average value between the first wavelength value and the second wavelength value to obtain a channel center wavelength value;
and calculating a difference value between the first wavelength value and the second wavelength value, and taking an absolute value of the difference value as a bandwidth value corresponding to the preset insertion loss value.
In some embodiments, the determining the initial WDM type of the wavelength-channel branch based on the preset insertion loss value and the bandwidth value includes:
respectively determining a first bandwidth limit value range of an LWDM type, a second bandwidth limit value range of the MWDM type and a third bandwidth limit value range of the CWDM type, which correspond to the preset insertion loss value;
detecting whether the bandwidth value is within the first bandwidth limit range or the second bandwidth limit range or the third bandwidth limit range;
when the bandwidth value is in the first bandwidth limit range, the initial WDM type of the wavelength channel branch is LWDM type;
when the bandwidth value is in the second bandwidth limit value range, the initial WDM type of the wavelength channel branch is MWDM type;
and when the bandwidth value is within the third bandwidth limit value range, the initial WDM type of the wavelength channel branch is CWDM type.
In some embodiments, after the step of identifying the actual WDM type of the wavelength channel branch based on the channel center wavelength value, the channel nominal center wavelength value, and the bandwidth upper limit for the initial WDM type, further comprising:
counting the actual WDM types of all wavelength channel branches in the WDM device to obtain the WDM class number of the WDM device;
judging whether the WDM class number is equal to or greater than 2;
if yes, the WDM device is a mixed WDM device of LWDM+CWDM;
if not, the WDM device is the WDM device corresponding to the actual WDM type.
In some embodiments, the predetermined insertion loss value is 3dB.
In a second aspect, there is provided a WDM wavelength channel identification device comprising:
the first acquisition unit is used for acquiring a two-dimensional array of a certain wavelength channel branch, wherein the two-dimensional array comprises a wavelength array and an insertion loss array, and elements in the wavelength array and elements in the insertion loss array have a one-to-one correspondence;
the first calculation unit is used for obtaining the minimum insertion loss value in the insertion loss array, and calculating the sum insertion loss value according to the minimum insertion loss value and a preset insertion loss value;
a second obtaining unit, configured to obtain, from the wavelength array, a first wavelength value corresponding to the first insertion loss value adjacent to the insertion loss value and a second wavelength value corresponding to the second insertion loss value;
the second calculation unit is used for calculating a channel center wavelength value and a bandwidth value corresponding to the preset insertion loss value based on the first wavelength value and the second wavelength value;
a first determining unit, configured to determine an initial WDM type of the wavelength channel branch based on the preset insertion loss value and the bandwidth value, and obtain a channel nominal center wavelength value with a minimum difference from the channel center wavelength value from a nominal center wavelength array of the initial WDM type;
a second determination unit for identifying an actual WDM type of the wavelength channel branch based on the channel center wavelength value, the channel nominal center wavelength value and a bandwidth upper limit value of the initial WDM type.
In a third aspect, there is provided a WDM wavelength channel identification device comprising: the system comprises a memory and a processor, wherein at least one instruction is stored in the memory, and the at least one instruction is loaded and executed by the processor so as to realize the WDM wavelength channel identification method.
In a fourth aspect, a computer readable storage medium is provided, the computer storage medium storing a computer program which, when executed by a processor, implements the aforementioned WDM wavelength channel identification method.
The beneficial effects that technical scheme that this application provided brought include: the method not only can effectively identify the branch type of the wavelength channel of the WDM, but also improves the identification efficiency.
The application provides a WDM wavelength channel identification method, a device, equipment and a readable storage medium, which comprise the steps of obtaining a two-dimensional array of a certain wavelength channel branch, wherein the two-dimensional array comprises a wavelength array and an insertion loss array, and elements in the wavelength array have a one-to-one correspondence with elements in the insertion loss array; obtaining a minimum insertion loss value in the insertion loss array, and calculating a sum insertion loss value according to the minimum insertion loss value and a preset insertion loss value; acquiring a first wavelength value corresponding to the first insertion loss value adjacent to the insertion loss value and a second wavelength value corresponding to the second insertion loss value from the wavelength array; calculating a channel center wavelength value and a bandwidth value corresponding to the preset insertion loss value based on the first wavelength value and the second wavelength value; determining an initial WDM type of the wavelength channel branch based on the preset insertion loss value and the bandwidth value, and acquiring a channel nominal center wavelength value with the minimum difference value with the channel center wavelength value from a nominal center wavelength array of the initial WDM type; the actual WDM type of the wavelength channel branch is identified based on the channel center wavelength value, the channel nominal center wavelength value, and the bandwidth upper limit of the initial WDM type. According to the method and the device, the actual center wavelength corresponding to the wavelength channel branch can be automatically identified from the insertion loss spectrum of the wavelength channel branch, the initial WDM type and the corresponding nominal center wavelength of the wavelength channel branch are judged by combining the passband shape attribute in the insertion loss spectrum, and the actual WDM type corresponding to the wavelength channel branch is accurately identified, so that data analysis can be performed based on the actual WDM type, the addition and the manual judgment of the wavelength channel branch type information are not needed, and the identification efficiency of the wavelength channel branch is effectively improved.
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In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art single wavelength division multiplexer;
FIG. 2 is a schematic diagram of a hybrid WDM multiplexer of the prior art;
fig. 3 is a flow chart of a WDM wavelength channel identification method according to an embodiment of the present application;
fig. 4 is a specific flow chart of a WDM wavelength channel identification method provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a WDM wavelength channel identification apparatus according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a WDM wavelength channel identification device according to an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
The embodiment of the application provides a WDM wavelength channel identification method, a WDM wavelength channel identification device and a WDM wavelength channel identification device, and a readable storage medium, which can solve the problem in the related art.
Referring to fig. 3 and 4, an embodiment of the present application provides a WDM wavelength channel identification method, including the following steps:
step S10: acquiring a two-dimensional array of a certain wavelength channel branch, wherein the two-dimensional array comprises a wavelength array and an insertion loss array, and elements in the wavelength array and elements in the insertion loss array have a one-to-one correspondence;
in the embodiment of the present application, each wavelength channel branch may be identified simultaneously, or each wavelength channel branch may be identified separately, which is taken as an example of identifying each wavelength channel branch separately: from the three-dimensional array of the wavelength channel branch 1 in the detection text, a two-dimensional array (W 1 ，I 1 )，W 1 For wavelength array, I 1 Is an insertion loss array and a wavelength array W 1 Element in (a) and insertion loss array I 1 Has a one-to-one correspondence.
Step S20: obtaining a minimum insertion loss value in the insertion loss array, and calculating a sum insertion loss value according to the minimum insertion loss value and a preset insertion loss value; wherein, the preset insertion loss value L' is preferably 3dB;
exemplary, in the present embodiment, I from step S10 1 The minimum insertion loss value L (the unit of the insertion loss value is dB) is searched and obtained, and then the sum value (namely L+L ') of the minimum insertion loss value L and the preset insertion loss value L' is calculated, so that the wavelength value for calculating the center wavelength of the channel can be further determined through the sum value.
Step S30: acquiring a first wavelength value corresponding to the first insertion loss value adjacent to the insertion loss value and a second wavelength value corresponding to the second insertion loss value from the wavelength array;
further, the step of obtaining, from the wavelength array, a first wavelength value corresponding to the first insertion loss value adjacent to the insertion loss value and a second wavelength value corresponding to the second insertion loss value specifically includes the following steps:
obtaining a first index value corresponding to the first insertion loss value adjacent to the insertion loss value and a second index value corresponding to the second insertion loss value from the insertion loss array;
and acquiring a first wavelength value corresponding to the first index value and a second wavelength value corresponding to the second index value from the wavelength array according to the corresponding relation between the elements in the wavelength array and the elements in the insertion loss array.
In the embodiment of the present application, taking the preset insertion loss value L 'is equal to 3dB as an example, the sum of the minimum insertion loss value L and the preset insertion loss value L' is l+3, and thus the insertion loss array I 1 Find two adjacent points to l+3 (i.e., left and right adjacent points to l+3), and output index values corresponding to the two points: x is x 1 (i.e., the first index value of the first insertion loss value corresponding to the left neighboring point) and x 2 (i.e., the second index value of the second insertion loss value corresponding to the right neighboring point); then according to the first index value x 1 And a second index value x 2 From wavelength arrays W respectively 1 Find out the first index value x 1 Corresponding first wavelength value w 1 And a second index value x 2 Corresponding second wavelength value w 2 。
Step S40: calculating a channel center wavelength value and a bandwidth value corresponding to the preset insertion loss value based on the first wavelength value and the second wavelength value;
further, the calculating, based on the first wavelength value and the second wavelength value, a channel center wavelength value and a bandwidth value corresponding to the preset insertion loss value include:
calculating an average value between the first wavelength value and the second wavelength value to obtain a channel center wavelength value;
and calculating a difference value between the first wavelength value and the second wavelength value, and taking an absolute value of the difference value as a bandwidth value corresponding to the preset insertion loss value.
Exemplary, in the present embodiment, a first wavelength value w is calculated 1 And a second wavelength value w 2 The average value of (1) can be obtained to obtain the channel center wavelength value lambda of the wavelength channel branch 1 1c The method comprises the steps of carrying out a first treatment on the surface of the And calculate |w 1 -w 2 Absolute value of i, which is the bandwidth value X corresponding to the preset insertion loss value of 3dB of the wavelength channel branch 1.
Step S50: determining an initial WDM type of the wavelength channel branch based on the preset insertion loss value and the bandwidth value, and acquiring a channel nominal center wavelength value with the minimum difference value with the channel center wavelength value from a nominal center wavelength array of the initial WDM type;
further, the determining the initial WDM type of the wavelength channel branch based on the preset insertion loss value and the bandwidth value specifically includes the following steps:
respectively determining a first bandwidth limit value range of an LWDM type, a second bandwidth limit value range of the MWDM type and a third bandwidth limit value range of the CWDM type, which correspond to the preset insertion loss value;
detecting whether the bandwidth value is within the first bandwidth limit range or the second bandwidth limit range or the third bandwidth limit range;
when the bandwidth value is in the first bandwidth limit range, the initial WDM type of the wavelength channel branch is LWDM type;
when the bandwidth value is in the second bandwidth limit value range, the initial WDM type of the wavelength channel branch is MWDM type;
and when the bandwidth value is within the third bandwidth limit value range, the initial WDM type of the wavelength channel branch is CWDM type.
Exemplary, in the embodiment of the present application, the bandwidth limit ranges corresponding to different types of WDM are also different for the same insertion loss value(see Table 1 in particular), it is thus possible to determine which WDM type is within the 3dB bandwidth limit according to the magnitude of the bandwidth X in step S40, and thus preliminarily identify the initial WDM type corresponding to the wavelength channel branch 1, e.g., X is located at [ X ] L-min ，X L-max ]In the range, the initial WDM type of the wavelength channel branch 1 can be preliminarily determined to be LWDM, and the bandwidth upper limit corresponding to the LWDM type is X L-max 。
TABLE 1 Bandwidth Limit Range for 3dB for different WDM types
| WDM type | Bandwidth lower limit value X corresponding to 3dB min | Bandwidth lower limit value X corresponding to 3dB max |
| LWDM | X L-min | X L-max |
| MWDM | X M-min | X M-max |
| CWDM | X C-min | X C-max |
The nominal center wavelength arrays of WDM types corresponding to different wavelength channel branches are also different, and in this embodiment, the nominal center wavelength arrays of all branches corresponding to the initial WDM type are selected from the two-dimensional arrays of wavelength grids of three WDM types, where the three WDM type wavelength grids are specifically shown in table 2.
Table 2 wavelength grids of three WDM types
Taking the example that the initial WDM type of the wavelength channel branch 1 is LWDM, a nominal center wavelength array corresponding to the wavelength channel branch 1 is selected from the nominal center wavelength arrays of all branches of the LWDM type, and a channel center wavelength value lambda is matched from the nominal center wavelength array 1c Channel nominal center wavelength value lambda with minimum difference between 1o I.e. the nominal central wavelength value lambda of the channel 1o Is equal to the channel center wavelength value lambda 1c The nearest wavelength value.
Step S60: the actual WDM type of the wavelength channel branch is identified based on the channel center wavelength value, the channel nominal center wavelength value, and the bandwidth upper limit of the initial WDM type.
Further, the identifying the actual WDM type of the wavelength channel branch based on the channel center wavelength value, the channel nominal center wavelength value, and the bandwidth upper limit of the initial WDM type includes:
judging whether the channel center wavelength value is lambda 1o ±X max In the range of/2, where lambda 1o For nominal central wavelength value of channel, X max A bandwidth upper limit value for the initial WDM type;
if yes, the initial WDM type is used as the actual WDM type of the wavelength channel branch;
if not, outputting that the wavelength channel branch does not belong to any one of LWDM type, MWDM type and CWDM type.
Exemplary, in the embodiment of the present application, the initial WDM type with the wavelength channel branch 1 is the LWDM type, and the bandwidth upper limit value of the initial WDM type is X L-max In the case of an example of this,due to the nominal central wavelength value lambda of the channel 1o Only the result of the general judgment processing according to the bandwidth attribute corresponding to 3dB, so that the channel center wavelength value lambda needs to be further judged 1c Whether or not at lambda 1o ±X L-max Within the range/2, if within this range, it can be determined that the actual WDM type of the wavelength-channel branch 1 is LWDM type, while the nominal center wavelength corresponding to the wavelength-channel branch 1 is λ 1o Otherwise, it is explained that the result of judging that the initial WDM type is the LWDM type in step S50 belongs to misjudgment, and in fact, the wavelength channel branch 1 does not belong to any one of the LWDM type, the MWDM type and the CWDM type.
Further, after the step of identifying the actual WDM type of the wavelength channel branch based on the channel center wavelength value, the channel nominal center wavelength value, and the bandwidth upper limit for the initial WDM type, the method further comprises:
counting the actual WDM types of all wavelength channel branches in the WDM device to obtain the WDM class number of the WDM device;
judging whether the WDM class number is equal to or greater than 2;
if yes, the WDM device is a mixed WDM device of LWDM+CWDM;
if not, the WDM device is the WDM device corresponding to the actual WDM type.
Exemplary, in the embodiments of the present application, WDM types for the entire device are identified: and reading data of other wavelength channel branches from the test text, repeating the steps S10 to S60 to identify the type of each wavelength channel branch until the identification of all wavelength channel branches is completed, obtaining the actual WDM type and the corresponding nominal center wavelength value of each wavelength channel branch, counting the category number of the actual WDM type of all wavelength channel branches, and determining the category of the WDM device according to the category number of the WDM type. Specifically, if the number of classes of WDM types is only 1, the class of the WDM device is the class corresponding to the actual WDM type given in step S60, for example, the actual WDM type of all wavelength channel branches is the LWDM type, i.e., the class of WDM type is only the LWDM type, and the WDM device is the LWDM wavelength division multiplexer; if there are more than two types of WDM, for example, a WDM type of a part of wavelength channel branches in a certain WDM device is an LWDM type and a WDM type of another part of wavelength channel branches is a CWDM type, the WDM device is a hybrid WDM device of lwdm+cwdm, and since the current 5G forwarding application only supports a hybrid device of lwdm+cwdm, there are no hybrid WDM devices of other combinations.
Therefore, according to the method and the device, the actual center wavelength corresponding to the wavelength channel branch can be automatically identified from the insertion loss spectrum of the wavelength channel branch, the initial WDM type and the corresponding nominal center wavelength of the wavelength channel branch are judged by combining the passband shape attribute in the insertion loss spectrum, and the actual WDM type and the actual nominal center wavelength corresponding to the wavelength channel branch are accurately identified, so that data analysis can be performed based on the actual WDM type, the addition and the manual judgment of the wavelength channel branch type information are not needed, and the identification efficiency of the wavelength channel branch is effectively improved.
Referring to fig. 5, an embodiment of the present application further provides a WDM wavelength channel identification apparatus, including:
the first acquisition unit is used for acquiring a two-dimensional array of a certain wavelength channel branch, wherein the two-dimensional array comprises a wavelength array and an insertion loss array, and elements in the wavelength array and elements in the insertion loss array have a one-to-one correspondence;
the first calculation unit is used for obtaining the minimum insertion loss value in the insertion loss array, and calculating the sum insertion loss value according to the minimum insertion loss value and a preset insertion loss value;
a second obtaining unit, configured to obtain, from the wavelength array, a first wavelength value corresponding to the first insertion loss value adjacent to the insertion loss value and a second wavelength value corresponding to the second insertion loss value;
the second calculation unit is used for calculating a channel center wavelength value and a bandwidth value corresponding to the preset insertion loss value based on the first wavelength value and the second wavelength value;
a first determining unit, configured to determine an initial WDM type of the wavelength channel branch based on the preset insertion loss value and the bandwidth value, and obtain a channel nominal center wavelength value with a minimum difference from the channel center wavelength value from a nominal center wavelength array of the initial WDM type;
a second determination unit for identifying an actual WDM type of the wavelength channel branch based on the channel center wavelength value, the channel nominal center wavelength value and a bandwidth upper limit value of the initial WDM type.
According to the method and the device, the actual center wavelength corresponding to the wavelength channel branch can be automatically identified from the insertion loss spectrum of the WDM wavelength channel branch, the initial WDM type and the corresponding nominal center wavelength of the wavelength channel branch are judged by combining the passband shape attribute in the insertion loss spectrum, and the actual WDM type and the actual nominal center wavelength corresponding to the wavelength channel branch are accurately identified, so that data analysis can be performed based on the actual WDM type, the addition and the manual judgment of the wavelength channel branch category information are not needed, and the identification efficiency of the wavelength channel branch is effectively improved.
Further, in an embodiment of the present application, the second determining unit is specifically configured to:
judging whether the channel center wavelength value is lambda 1o ±X max In the range of/2, where lambda 1o For nominal central wavelength value of channel, X max A bandwidth upper limit value for the initial WDM type;
if yes, the initial WDM type is used as the actual WDM type of the wavelength channel branch;
if not, outputting that the wavelength channel branch does not belong to any one of LWDM type, MWDM type and CWDM type.
Further, in the embodiment of the present application, the second obtaining unit is specifically configured to:
obtaining a first index value corresponding to the first insertion loss value adjacent to the insertion loss value and a second index value corresponding to the second insertion loss value from the insertion loss array;
and acquiring a first wavelength value corresponding to the first index value and a second wavelength value corresponding to the second index value from the wavelength array according to the corresponding relation between the elements in the wavelength array and the elements in the insertion loss array.
Further, in an embodiment of the present application, the second computing unit is specifically configured to:
calculating an average value between the first wavelength value and the second wavelength value to obtain a channel center wavelength value;
and calculating a difference value between the first wavelength value and the second wavelength value, and taking an absolute value of the difference value as a bandwidth value corresponding to the preset insertion loss value.
Further, in an embodiment of the present application, the first determining unit is specifically configured to:
respectively determining a first bandwidth limit value range of an LWDM type, a second bandwidth limit value range of the MWDM type and a third bandwidth limit value range of the CWDM type, which correspond to the preset insertion loss value;
detecting whether the bandwidth value is within the first bandwidth limit range or the second bandwidth limit range or the third bandwidth limit range;
when the bandwidth value is in the first bandwidth limit range, the initial WDM type of the wavelength channel branch is LWDM type;
when the bandwidth value is in the second bandwidth limit value range, the initial WDM type of the wavelength channel branch is MWDM type;
and when the bandwidth value is within the third bandwidth limit value range, the initial WDM type of the wavelength channel branch is CWDM type.
Further, in an embodiment of the present application, the second determining unit is further configured to:
counting the actual WDM types of all wavelength channel branches in the WDM device to obtain the WDM class number of the WDM device;
judging whether the WDM class number is equal to or greater than 2;
if yes, the WDM device is a mixed WDM device of LWDM+CWDM;
if not, the WDM device is the WDM device corresponding to the actual WDM type.
Further, in the embodiment of the present application, the preset insertion loss value is 3dB.
It should be noted that, for convenience and brevity of description, the specific operation of the apparatus and units described above may refer to the corresponding process in the foregoing WDM wavelength channel identification method embodiment, which is not described herein again.
The apparatus provided by the above embodiments may be implemented in the form of a computer program which is operable on a WDM wavelength channel identification device as shown in fig. 6.
The embodiment of the application also provides a WDM wavelength channel identification device, which comprises: the system comprises a memory, a processor and a network interface which are connected through a system bus, wherein at least one instruction is stored in the memory, and the at least one instruction is loaded and executed by the processor so as to realize all or part of the steps of the WDM wavelength channel identification method.
Wherein the network interface is used for network communication, such as sending assigned tasks, etc. It will be appreciated by those skilled in the art that the structure shown in fig. 6 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
The processor may be a CPU, but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field Programmable Gate Arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic device discrete hardware components, or the like. A general purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like, that is a control center of a computer device, with various interfaces and lines connecting various parts of the entire computer device.
The memory may be used to store computer programs and/or modules, and the processor implements various functions of the computer device by running or executing the computer programs and/or modules stored in the memory, and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, application programs required for at least one function (such as a video playing function, an image playing function, etc.), and the like; the storage data area may store data (such as video data, image data, etc.) created according to the use of the cellular phone, etc. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart Media Card (SMC), secure Digital (SD) Card, flash Card (Flash Card), at least one disk storage device, flash memory device, or other volatile solid state storage device.
The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements all or part of the steps of the aforementioned WDM wavelength channel identification method.
The embodiments of the present application implement all or part of the above-described procedures, or may be implemented by a computer program that instructs related hardware to perform the steps of the above-described methods when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a Read-Only memory (ROM), a random access memory (Random Access memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of the jurisdiction's jurisdiction and the patent practice, for example, in some jurisdictions, the computer readable medium does not include electrical carrier signals and telecommunication signals according to the jurisdiction and the patent practice.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, server, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A WDM wavelength channel identification method, comprising the steps of:
acquiring a two-dimensional array of a certain wavelength channel branch, wherein the two-dimensional array comprises a wavelength array and an insertion loss array, and elements in the wavelength array and elements in the insertion loss array have a one-to-one correspondence;
obtaining a minimum insertion loss value in the insertion loss array, and calculating a sum insertion loss value according to the minimum insertion loss value and a preset insertion loss value;
acquiring a first wavelength value corresponding to the first insertion loss value adjacent to the insertion loss value and a second wavelength value corresponding to the second insertion loss value from the wavelength array;
calculating a channel center wavelength value and a bandwidth value corresponding to the preset insertion loss value based on the first wavelength value and the second wavelength value;
determining an initial WDM type of the wavelength channel branch based on the preset insertion loss value and the bandwidth value, and acquiring a channel nominal center wavelength value with the minimum difference value with the channel center wavelength value from a nominal center wavelength array of the initial WDM type;
the actual WDM type of the wavelength channel branch is identified based on the channel center wavelength value, the channel nominal center wavelength value, and the bandwidth upper limit of the initial WDM type.
2. A WDM wavelength channel identification method as claimed in claim 1, wherein said identifying an actual WDM type of said wavelength channel branch based on said channel center wavelength value, said channel nominal center wavelength value, and a bandwidth upper limit of said initial WDM type comprises:
judging whether the channel center wavelength value is lambda 1o ±X max In the range of/2, where lambda 1o For nominal central wavelength value of channel, X max A bandwidth upper limit value for the initial WDM type;
if yes, the initial WDM type is used as the actual WDM type of the wavelength channel branch;
if not, outputting that the wavelength channel branch does not belong to any one of LWDM type, MWDM type and CWDM type.
3. The WDM wavelength channel identification method of claim 1, wherein said obtaining, from said wavelength array, a first wavelength value corresponding to said first insertion loss value adjacent to said insertion loss value and a second wavelength value corresponding to said second insertion loss value, comprises:
obtaining a first index value corresponding to the first insertion loss value adjacent to the insertion loss value and a second index value corresponding to the second insertion loss value from the insertion loss array;
and acquiring a first wavelength value corresponding to the first index value and a second wavelength value corresponding to the second index value from the wavelength array according to the corresponding relation between the elements in the wavelength array and the elements in the insertion loss array.
4. The WDM wavelength channel identification method of claim 1, wherein said calculating a channel center wavelength value and a bandwidth value corresponding to said predetermined insertion loss value based on said first wavelength value and said second wavelength value comprises:
calculating an average value between the first wavelength value and the second wavelength value to obtain a channel center wavelength value;
and calculating a difference value between the first wavelength value and the second wavelength value, and taking an absolute value of the difference value as a bandwidth value corresponding to the preset insertion loss value.
5. A WDM wavelength channel identification method as defined in claim 1, wherein said determining an initial WDM type for said wavelength channel branch based on said preset insertion loss value and said bandwidth value comprises:
respectively determining a first bandwidth limit value range of an LWDM type, a second bandwidth limit value range of the MWDM type and a third bandwidth limit value range of the CWDM type, which correspond to the preset insertion loss value;
detecting whether the bandwidth value is within the first bandwidth limit range or the second bandwidth limit range or the third bandwidth limit range;
when the bandwidth value is in the first bandwidth limit range, the initial WDM type of the wavelength channel branch is LWDM type;
when the bandwidth value is in the second bandwidth limit value range, the initial WDM type of the wavelength channel branch is MWDM type;
and when the bandwidth value is within the third bandwidth limit value range, the initial WDM type of the wavelength channel branch is CWDM type.
6. A WDM wavelength channel identification method as set forth in claim 1, further comprising, after said step of identifying an actual WDM type of said wavelength channel branch based on said channel center wavelength value, said channel nominal center wavelength value, and said initial WDM type bandwidth upper limit value:
counting the actual WDM types of all wavelength channel branches in the WDM device to obtain the WDM class number of the WDM device;
judging whether the WDM class number is equal to or greater than 2;
if yes, the WDM device is a mixed WDM device of LWDM+CWDM;
if not, the WDM device is the WDM device corresponding to the actual WDM type.
7. A WDM wavelength channel identification method as claimed in claim 1, wherein: the preset insertion loss value is 3dB.
8. A WDM wavelength channel identification device, comprising:
the first acquisition unit is used for acquiring a two-dimensional array of a certain wavelength channel branch, wherein the two-dimensional array comprises a wavelength array and an insertion loss array, and elements in the wavelength array and elements in the insertion loss array have a one-to-one correspondence;
the first calculation unit is used for obtaining the minimum insertion loss value in the insertion loss array, and calculating the sum insertion loss value according to the minimum insertion loss value and a preset insertion loss value;
a second obtaining unit, configured to obtain, from the wavelength array, a first wavelength value corresponding to the first insertion loss value adjacent to the insertion loss value and a second wavelength value corresponding to the second insertion loss value;
the second calculation unit is used for calculating a channel center wavelength value and a bandwidth value corresponding to the preset insertion loss value based on the first wavelength value and the second wavelength value;
a first determining unit, configured to determine an initial WDM type of the wavelength channel branch based on the preset insertion loss value and the bandwidth value, and obtain a channel nominal center wavelength value with a minimum difference from the channel center wavelength value from a nominal center wavelength array of the initial WDM type;
a second determination unit for identifying an actual WDM type of the wavelength channel branch based on the channel center wavelength value, the channel nominal center wavelength value and a bandwidth upper limit value of the initial WDM type.
9. A WDM wavelength channel identification device, comprising: a memory and a processor, the memory having stored therein at least one instruction that is loaded and executed by the processor to implement the WDM wavelength channel identification method of any one of claims 1 to 7.
10. A computer-readable storage medium, characterized by: the computer storage medium stores a computer program which, when executed by a processor, implements the WDM wavelength channel identification method of any one of claims 1 to 7.
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