End-to-end electric power communication optical path determination method and device

Abstract

The invention provides a method and a device for determining an end-to-end power communication optical path. The method comprises the following steps: acquiring corresponding optical cable information and communication optical path information of a transmitting end and a receiving end; searching all linkable communication optical paths according to the optical cable information, the communication optical path information and a path searching algorithm; if it is detected that the current communication light path breaks down, the total length of optical cables of each linkable communication light path is matched with all distance ranges in the communication light path information, and the distance range corresponding to each linkable communication light path is obtained; searching a shortest path communication optical path, a least jumper connection communication optical path and a least loss communication optical path from all the linkable communication optical paths; and determining a new current communication optical path according to the shortest path communication optical path, the least jumper connection communication optical path, the least loss communication optical path and the distance range corresponding to each linkable communication optical path. And the new current communication optical path is determined by using the optical cable information and the communication optical path information, so that the communication optical path is quickly recovered, and the service continuity and the data transmission accuracy are ensured.

Description

Technical Field

[0001] The present invention relates to the field of optical fiber communication technology, and in particular to a method and device for determining an end-to-end power communication optical path. Background Art

[0002] In the context of the rapid development of smart grids, the stability and reliability of power communication networks, as key infrastructure supporting grid monitoring, control and data transmission, are crucial to the safe operation of the grid. Among them, the optimization and fault recovery of end-to-end communication optical paths have become the key to ensuring network stability and reliability.

[0003] Traditional routing reconstruction algorithms often rely on link status information, but during failures, this information may be incomplete or outdated, resulting in suboptimal routing decisions and making it difficult to simultaneously ensure the reliability of the communication optical path and the balance of the network load.

[0004] Therefore, how to quickly restore the stable operation of the power grid and accurate data transmission when the power communication network fails is an urgent problem that needs to be solved. Summary of the invention

[0005] In view of this, an embodiment of the present invention provides an end-to-end power communication optical path determination method and device to achieve the purpose of quickly restoring the stable operation of the power grid and accurately transmitting data when the power communication network fails.

[0006] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0007] A first aspect of the present invention discloses an end-to-end power communication optical path determination method, the method comprising:

[0008] Obtain the corresponding optical cable information and communication optical path information of the transmitting end and the receiving end;

[0009] Searching all linkable communication optical paths from the sending end to the receiving end according to the optical cable information, the communication optical path information and a path search algorithm;

[0010] When a fault is detected in the current communication optical path used from the transmitting end to the receiving end, the total length of the optical cable of each linkable communication optical path is matched with all the distance ranges in the communication optical path information to obtain the distance range corresponding to each linkable communication optical path;

[0011] Find the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path from all linkable communication optical paths;

[0012] A new current communication optical path used from the sending end to the receiving end is determined based on the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and the distance range corresponding to each of the linkable communication optical paths.

[0013] Preferably, when a fault is detected in the current communication optical path used from the transmitting end to the receiving end, before matching the total length of the optical cable of each of the linkable communication optical paths with all the distance ranges in the communication optical path information to obtain the distance range corresponding to each of the linkable communication optical paths, the method further includes:

[0014] Determine whether the physical connection of the current communication optical path used by the transmitting end to the receiving end is correct, and determine whether the signal transmission of the current communication optical path meets the preset requirements;

[0015] When the physical connection of the current communication optical path is incorrect, and / or the signal transmission of the current communication optical path does not meet the preset requirements, determining that the current communication optical path has a fault;

[0016] When the physical connection of the current communication optical path is correct and the signal transmission of the current communication optical path meets the preset requirements, it is determined that the current communication optical path is normal.

[0017] Preferably, the step of searching for the shortest path communication optical path, the least hop communication optical path, and the least loss communication optical path from all linkable communication optical paths comprises:

[0018] Extract the total length of optical cables of all linkable communication optical paths;

[0019] The linkable communication optical path corresponding to the shortest length among the total lengths of the optical cables of all linkable communication optical paths is determined as the shortest path communication optical path;

[0020] Calculating the total number of optical cable segments of each of the linkable communication optical paths;

[0021] Determine the linkable communication optical path corresponding to the minimum number of the total optical cable segments as the least-hop communication optical path;

[0022] The communication optical path with the least loss is determined according to the total number of optical cable sections and the number of connection points of each of the linkable communication optical paths.

[0023] Preferably, the determining of the least-loss communication optical path according to the total number of optical cable segments and the number of connection points of each of the linkable communication optical paths comprises:

[0024] For each of the linkable communication optical paths among all the linkable communication optical paths, calculating the number of connection points of each of the linkable communication optical paths;

[0025] Acquire an optical cable loss value from the optical cable information, and acquire an access port loss value from the communication optical path information;

[0026] Calculate the total loss value of each of the linkable communication optical paths according to the total number of optical cable segments, the number of connection points, the optical cable loss value and the access point loss value;

[0027] The linkable communication optical path corresponding to the minimum total loss value among all total loss values ​​is determined as the least-loss communication optical path.

[0028] Preferably, determining the new current communication optical path used by the transmitting end to the receiving end according to the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and the distance range corresponding to each of the linkable communication optical paths includes:

[0029] Acquire a transmission requirement corresponding to each of the distance ranges from the communication optical path information, wherein the transmission requirement includes a plurality of transmission factors and their corresponding weights;

[0030] According to the plurality of transmission factors and their corresponding weights, the comprehensive scores of the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and the other linkable communication optical paths are calculated, wherein the other linkable communication optical paths are all linkable communication optical paths except the shortest path communication optical path, the least hop communication optical path and the least loss communication optical path among all linkable communication optical paths;

[0031] The linkable communication optical path corresponding to the maximum comprehensive score among all comprehensive scores is determined as a new current communication optical path used from the sending end to the receiving end.

[0032] A second aspect of the present invention discloses an end-to-end power communication optical path determination device, the device comprising:

[0033] An acquisition unit, used to acquire the corresponding optical cable information and communication optical path information of the transmitting end and the receiving end;

[0034] A first searching unit, configured to search all linkable communication optical paths from the sending end to the receiving end according to the optical cable information, the communication optical path information and a path searching algorithm;

[0035] A matching unit, configured to match the total length of the optical cable of each of the linkable communication optical paths with all the distance ranges in the communication optical path information to obtain the distance range corresponding to each of the linkable communication optical paths when a fault is detected in the current communication optical path used from the sending end to the receiving end;

[0036] A second search unit is used to search for the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path from all linkable communication optical paths;

[0037] A determination unit is used to determine a new current communication optical path used from the sending end to the receiving end based on the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and the distance range corresponding to each of the linkable communication optical paths.

[0038] Preferably, the device further comprises:

[0039] A judging unit, used to judge whether the physical connection of the current communication optical path used by the transmitting end to the receiving end is correct, and whether the signal transmission of the current communication optical path meets the preset requirements;

[0040] A fault determination unit, configured to determine that a fault occurs in the current communication optical path when the physical connection of the current communication optical path is incorrect and / or the signal transmission of the current communication optical path does not meet preset requirements;

[0041] The normal determination unit is used to determine that the current communication optical path is normal when the physical connection of the current communication optical path is correct and the signal transmission of the current communication optical path meets the preset requirements.

[0042] Preferably, the second searching unit comprises:

[0043] An extraction module, used for extracting the total length of optical cables of all linkable communication optical paths;

[0044] A first determining module is used to determine the linkable communication optical path corresponding to the shortest length among the total lengths of the optical cables of all linkable communication optical paths as the shortest path communication optical path;

[0045] A calculation module, used for calculating the total number of optical cable segments of each of the linkable communication optical paths;

[0046] A second determination module is used to determine the linkable communication optical path corresponding to the minimum number of the total optical cable segments as the least jump communication optical path;

[0047] The third determination module is used to determine the least loss communication optical path according to the total number of optical cable sections and the number of connection points of each of the linkable communication optical paths.

[0048] Preferably, the third determination module includes:

[0049] A first calculation submodule is used to calculate the number of connection points of each linkable communication optical path among all linkable communication optical paths;

[0050] An acquisition submodule, used to acquire an optical cable loss value from the optical cable information, and to acquire an access port loss value from the communication optical path information;

[0051] A second calculation submodule, used for calculating the total loss value of each of the linkable communication optical paths according to the total number of optical cable segments, the number of connection points, the optical cable loss value and the access port loss value;

[0052] The determination submodule is used to determine the linkable communication optical path corresponding to the minimum total loss value among all the total loss values ​​as the minimum loss communication optical path.

[0053] Preferably, the determining unit includes:

[0054] An acquisition module, used for acquiring a transmission requirement corresponding to each of the distance ranges from the communication optical path information, wherein the transmission requirement includes a plurality of transmission factors and their corresponding weights;

[0055] A module for calculating a comprehensive score, used for calculating the comprehensive scores of the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and other linkable communication optical paths according to the plurality of transmission factors and their corresponding weights, wherein the other linkable communication optical paths are all linkable communication optical paths except the shortest path communication optical path, the least hop communication optical path and the least loss communication optical path among all linkable communication optical paths;

[0056] The fourth determination module is used to determine the linkable communication optical path corresponding to the maximum comprehensive score among all comprehensive scores as the new current communication optical path used by the sending end to the receiving end.

[0057] Based on the end-to-end power communication optical path determination method and device provided by the above-mentioned embodiment of the present invention, the optical cable information and communication optical path information corresponding to the transmitting end and the receiving end are obtained; all linkable communication optical paths are searched according to the optical cable information, the communication optical path information and the path search algorithm; if a fault is detected in the current communication optical path, the total length of the optical cable of each linkable communication optical path is matched with all the distance ranges in the communication optical path information to obtain the distance range corresponding to each linkable communication optical path; the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path are searched from all linkable communication optical paths; the new current communication optical path is determined according to the shortest path communication optical path, the least jump communication optical path, the least loss communication optical path and the distance range corresponding to each linkable communication optical path. The new current communication optical path is determined by using the optical cable information and the communication optical path information to realize the rapid recovery of the communication optical path and ensure the continuity of the business and the accuracy of data transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0059] Figure 1 A flow chart of a method for determining an end-to-end power communication optical path provided by an embodiment of the present invention;

[0060] Figure 2 A flow chart for finding the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path provided by an embodiment of the present invention;

[0061] Figure 3 A flow chart for determining a communication optical path with minimum loss provided by an embodiment of the present invention;

[0062] Figure 4 A flow chart for determining a new current communication optical path provided by an embodiment of the present invention;

[0063] Figure 5 A structural block diagram of an end-to-end power communication optical path determination device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] In this application, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0066] As can be seen from the background technology, traditional routing reconstruction algorithms often rely on link status information, but during a failure, this information may be incomplete or outdated, resulting in suboptimal routing decisions and difficulty in ensuring both the reliability of the communication optical path and the balance of the network load.

[0067] Therefore, the embodiment of the present invention provides an end-to-end power communication optical path determination method and device, which obtains the corresponding optical cable information and communication optical path information of the transmitting end and the receiving end; searches all linkable communication optical paths according to the optical cable information, the communication optical path information and the path search algorithm; if a fault is detected in the current communication optical path, matches the total length of the optical cable of each linkable communication optical path with all the distance ranges in the communication optical path information to obtain the distance range corresponding to each linkable communication optical path; searches for the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path from all linkable communication optical paths; determines a new current communication optical path according to the shortest path communication optical path, the least jump communication optical path, the least loss communication optical path and the distance range corresponding to each linkable communication optical path. The new current communication optical path is determined by using the optical cable information and the communication optical path information to realize the rapid recovery of the communication optical path, and ensure the continuity of the business and the accuracy of data transmission.

[0068] See also Figure 1 , shows a flow chart of an end-to-end power communication optical path determination method provided by an embodiment of the present invention.

[0069] It can be understood that the end-to-end power communication optical path can be regarded as the communication optical path between two power plants. The method for determining the end-to-end power communication optical path can be regarded as the method for determining the communication optical path between two power plants. The method includes:

[0070] Step S101: Obtain the corresponding optical cable information and communication optical path information of the transmitting end and the receiving end.

[0071] It should be noted that in the power grid system, the sending end and the receiving end usually refer to plants and stations, such as data centers, communication base stations, power plants or substations, which are connected by optical communication equipment and optical cables to achieve data and signal transmission.

[0072] In the specific implementation of step S101, the existing optical cables and existing communication optical paths of the transmitting end and the receiving end are digitized to obtain the corresponding optical cable information and communication optical path information of the transmitting end and the receiving end, wherein the digitized optical cable information includes but is not limited to the name of the optical cable, the optical cable number, the transmitting end (such as station A), the receiving end (such as station Z), the optical cable type, the optical cable length, the fiber core number used, the screen (cabinet) number corresponding to each fiber core number, the optical distribution unit (frame) number, the unit reel rack (reel) number and the port number, etc. The digitized communication optical path information includes but is not limited to the information of station A, station Z, optical fiber equipment of station A, optical fiber equipment of station Z, platform, multiplexing length, number of jump fibers, optical cable segment, etc.

[0073] It can be understood that a cable segment refers to the collection of all optical cables that a communication optical path passes through from the starting point to the end point in a communication network. The platform is a technical platform, and two stations on the same platform usually refer to two communication nodes, which use the same communication protocol, equipment or technical platform to achieve data transmission and communication.

[0074] Step S102: searching all linkable communication optical paths from the sending end to the receiving end according to the optical cable information, the communication optical path information and the path search algorithm.

[0075] In the process of implementing step S102, the optical cable information and the communication optical path information are converted into a network model, in which nodes represent ends and edges represent optical cables connecting these ends. A path finding algorithm is used to find all communication optical paths from the sending end to the receiving end, and then all linkable communication optical paths from the sending end to the receiving end are filtered out from all communication optical paths based on the optical cable information and the communication optical path information.

[0076] It is understood that the path finding algorithm includes but is not limited to breadth first search (BFS) and depth first search (DFS).

[0077] In some embodiments, after finding all linkable communication optical paths from the sender to the receiver, it is necessary to determine whether the current communication optical path used by the sender to the receiver has a fault. The specific determination process is as follows (process A1 to process A3):

[0078] Process A1: Determine whether the physical connection of the current communication optical path used by the transmitting end to the receiving end is correct, and determine whether the signal transmission of the current communication optical path meets the preset requirements.

[0079] In the specific implementation of process A1, the method of determining whether the physical connection of the current communication optical path is correct includes but is not limited to checking whether the connection of the current communication optical path is correct and stable; using an optical fiber tester to detect the quality and faults of the optical fiber connection; using an optical power meter or an optical time domain reflectometer to quantitatively measure the optical fiber. The method of determining whether the signal transmission of the current communication optical path meets the preset requirements includes but is not limited to using an optical power meter (OPM) and an optical detector to measure the optical power level in the communication optical path; measuring the loss and length of the optical fiber and the location and nature of events in the optical fiber (such as breaks, connectors, and fusion points) by an optical time domain reflectometer (OTDR); and testing whether the communication optical path can support the predetermined data transmission rate by bandwidth.

[0080] Process A2: If the physical connection of the current communication optical path is incorrect, and / or the signal transmission of the current communication optical path does not meet the preset requirements, it is determined that the current communication optical path has a fault.

[0081] In the specific implementation process A2, if it is determined that the physical connection of the current communication optical path is incorrect according to any method for determining whether the physical connection of the current communication optical path is correct, and / or it is determined that the signal transmission of the current communication optical path does not meet the preset requirements according to any method for determining whether the signal transmission of the current communication optical path meets the preset requirements, then it is determined that the current communication optical path has a fault.

[0082] Process A3: If the physical connection of the current communication optical path is correct and the signal transmission of the current communication optical path meets the preset requirements, it is determined that the current communication optical path is normal.

[0083] When specifically implementing process A3, if all methods for determining whether the physical connection of the current communication optical path is correct determine that the physical connection of the current communication optical path is correct, and all methods for determining whether the signal transmission of the current communication optical path meets the preset requirements determine that the signal transmission of the current communication optical path meets the preset requirements, then it is determined that the current communication optical path is normal.

[0084] Step S103: When a fault is detected in the current communication optical path used from the transmitter to the receiver, the total length of the optical cable of each linkable communication optical path is matched with all distance ranges in the communication optical path information to obtain the distance range corresponding to each linkable communication optical path.

[0085] It can be understood that the optical communication equipment between the two ends of the same platform has four length distance ranges, namely 0-20Km, 20-40Km, 40-80Km, and above 80Km.

[0086] In the specific implementation of step S103, when a fault is detected in the current communication optical path used from the transmitting end to the receiving end, the total length of the optical cable of each linkable communication optical path is matched with the four-level length distance range to obtain the distance range corresponding to each linkable communication optical path. That is, for each communication optical path, the closest distance range to which it belongs is found (i.e., the length is just within the distance range or is only slightly higher than the maximum distance value but not more than the minimum distance value of the next distance range).

[0087] Step S104: searching for the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path from all linkable communication optical paths.

[0088] In the specific implementation of step S104, the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path are selected from all linkable communication optical paths. For the specific selection process, see the following embodiment of the present invention. Figure 2 The content shown.

[0089] It is understandable that the shortest path communication optical path can reduce the data transmission time as much as possible; the least jump communication optical path can reduce the number of hops and the processing time of the intermediate equipment, reduce failures or delays; the least loss communication optical path can ensure signal quality. However, in practical applications, when it is required to comprehensively consider multiple factors (such as bandwidth, delay, loss, cost, etc.), it is necessary to find the optimal communication optical path, so that the optimal path is used as the new current communication optical path used from the sender to the receiver. Based on this, refer to the content shown in step S105.

[0090] Step S105: Determine a new current communication optical path used from the sending end to the receiving end according to the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and the distance range corresponding to each linkable communication optical path.

[0091] In the specific implementation of step S105, the optimal communication optical path is determined based on the shortest path communication optical path, the least jump communication optical path, the least loss communication optical path and the distance range corresponding to each linkable communication optical path, and the optimal communication optical path is used as the new current communication optical path used from the sending end to the receiving end. For the specific determination process, see the following embodiment of the present invention. Figure 4 The content in.

[0092] In the embodiment of the present invention, the optical cable information and communication optical path information corresponding to the transmitting end and the receiving end are obtained; all linkable communication optical paths are searched according to the optical cable information, the communication optical path information and the path search algorithm; if a fault is detected in the current communication optical path, the total length of the optical cable of each linkable communication optical path is matched with all the distance ranges in the communication optical path information to obtain the distance range corresponding to each linkable communication optical path; the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path are searched from all linkable communication optical paths; a new current communication optical path is determined according to the shortest path communication optical path, the least jump communication optical path, the least loss communication optical path and the distance range corresponding to each linkable communication optical path. The new current communication optical path is determined by using the optical cable information and the communication optical path information to realize the rapid recovery of the communication optical path, and ensure the continuity of the business and the accuracy of data transmission.

[0093] The above embodiments of the present invention Figure 1 For the specific implementation method of selecting the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path involved in Figure 2 , shows a flow chart of searching for the shortest path communication optical path, the least hop communication optical path and the least loss communication optical path provided by an embodiment of the present invention, including:

[0094] Step S201: extracting the total length of optical cables of all linkable communication optical paths.

[0095] In the specific implementation of step S201, for each linkable communication optical path among all linkable communication optical paths, the total length of the optical cables is calculated to obtain the total length of the optical cables of all linkable communication optical paths.

[0096] It can be understood that for each linkable communication optical path, the length of each optical cable in the linkable communication optical path is calculated according to the optical cable information, and all the optical cable lengths are summed up to obtain the total length of the optical cables in the linkable communication optical path.

[0097] Step S202: Determine the linkable communication optical path corresponding to the shortest length of the total length of the optical cables of all linkable communication optical paths as the shortest path communication optical path.

[0098] In the specific implementation of step S202, the linkable communication optical path with the shortest total optical cable length is searched from the total optical cable lengths of all linkable communication optical paths, and is determined as the shortest path communication optical path.

[0099] In some embodiments, in order to improve the transmission efficiency of a certain segment of business, the shortest path communication optical path is given priority.

[0100] Step S203: Calculate the total number of optical cable segments of each linkable communication optical path.

[0101] In the specific implementation of step S203, for each linkable communication optical path among all linkable communication optical paths, the total number of optical cable segments is calculated.

[0102] It can be understood that for each linkable communication optical path, each independent optical cable segment of the linkable communication optical path is identified according to the optical cable information, including the optical cable from the starting point to the first connection point, the optical cable from the first connection point to the second connection point, and so on, until the end point. The number of optical cable segments is calculated, which usually includes directly connected optical cable segments and optical cable segments connected through optical fiber connectors or fusion points, to obtain the total number of optical cable segments of the linkable communication optical path.

[0103] It should be noted that during the calculation process, if the optical cable path includes intermediate equipment, such as optical distribution frames (ODFs), optical distribution racks (ODFs) or optical splice boxes, the connection between each device is also regarded as an independent optical cable segment.

[0104] Step S204: Determine the linkable communication optical path corresponding to the minimum total number of optical cable segments as the communication optical path with the least hops.

[0105] In the specific implementation of step S204, the minimum total number of optical cable segments is extracted from the total number of optical cable segments of all linkable communication optical paths, and the linkable communication optical path corresponding to the minimum total number of optical cable segments is found and determined as the communication optical path with the least jumps.

[0106] Step S205: Determine the communication optical path with the least loss according to the total number of optical cable segments and the number of connection points of each linkable communication optical path.

[0107] In the process of specifically implementing step S205, the total number of optical cable segments and the number of connection points of each linkable communication optical path are determined based on the optical cable information and the communication optical path information, and the loss of each linkable communication optical path is calculated based on the total number of optical cable segments and the number of connection points. Based on this, the communication optical path with the least loss is determined.

[0108] It should be noted that the specific implementation method of determining the least loss communication optical path is detailed in the following embodiments of the present invention. Figure 3 The content in.

[0109] In some embodiments, in order to restore services as quickly as possible and ensure business continuity, priority will be given to the communication optical path with the least jumps or the communication optical path with the least loss to reduce the impact of the failure on the business. Alternatively, when it is found that the loss of a certain communication optical path is too high, an algorithm for finding the communication optical path with the least loss will be triggered to optimize network performance and reduce maintenance costs.

[0110] In an embodiment of the present invention, the shortest path communication optical path, the communication optical path with the least jumps and the communication optical path with the least loss among all linkable communication optical paths are determined according to the total length of optical cables, the total number of optical cable sections and the number of connection points of all linkable communication optical paths, which lays a foundation for the subsequent determination of new communication optical paths and improves reliability.

[0111] The above embodiments of the present invention Figure 2 For the specific implementation method of determining the least loss communication optical path involved in Figure 3 , shows a flow chart of determining a minimum loss communication optical path provided by an embodiment of the present invention, including:

[0112] Step S301: for each linkable communication optical path among all linkable communication optical paths, the number of connection points of each linkable communication optical path is calculated.

[0113] In the process of specifically implementing step S301, for each linkable communication optical path among all linkable communication optical paths, the number of intermediate devices, the number of optical fiber connectors, and the number of optical splitters or couplers contained in the current linkable communication optical path is determined according to the optical cable information, and the number of connection points is calculated based on this information and the total number of optical cable segments of the current linkable communication optical path.

[0114] Step S302: Obtain the optical cable loss value from the optical cable information, and obtain the access port loss value from the communication optical path information.

[0115] In the specific implementation of step S302, the optical cable loss value is obtained from the optical cable information, and the access port loss value is extracted from the communication optical path information.

[0116] It should be noted that in the calculation of optical signal loss, the normal range of optical cable loss per kilometer is between 0.3-0.5 dB, and the insertion loss of each patch cord access port is generally between 0.3-0.5 dB.

[0117] For example: in the optical cable information, the optical cable loss value is set to 0.4dB per kilometer; in the communication optical path information, the access port loss value is set to 0.4dB insertion loss per access port.

[0118] Step S303: Calculate the total loss value of each linkable communication optical path according to the total number of optical cable segments, the number of connection points, the optical cable loss value and the access port loss value.

[0119] In the specific implementation process of step S303, for each linkable communication optical path, the product of the total number of optical cable segments and the optical cable loss value is calculated, as well as the product of the number of connection points and the access point loss value is calculated, and the two products are summed to obtain the total loss value of the current linkable communication optical path.

[0120] For example: the total number of optical cable segments of linkable communication optical path A is 7, and the optical cable loss value is 0.4dB per kilometer. Since two optical cable segments need two access points to achieve jumper connection, there are two insertion losses, so the number of connection points is 12, and the insertion loss of each access point is 0.4dB, then the total loss value of linkable communication optical path A = 7*0.4+12*0.4=7.6.

[0121] Step S304: Determine the linkable communication optical path corresponding to the minimum total loss value among all total loss values ​​as the communication optical path with the least loss.

[0122] In the specific implementation of step S304, the minimum total loss value is extracted from the total loss values ​​of all linkable communication optical paths, and the linkable communication optical path corresponding to the minimum total loss value is found and determined as the least-loss communication optical path.

[0123] In an embodiment of the present invention, the communication optical path with the least loss of all linkable communication optical paths is determined based on the total number of optical cable segments, the number of connection points, the optical cable loss value and the access port loss value, which lays the foundation for the subsequent determination of new communication optical paths and improves reliability.

[0124] The above embodiments of the present invention Figure 1 For the specific implementation method of determining the new current communication optical path involved in Figure 4 , shows a flow chart of determining a new current communication optical path provided by an embodiment of the present invention, including:

[0125] Step S401: acquiring the corresponding transmission requirement of each distance range from the communication optical path information, wherein the transmission requirement includes a plurality of transmission factors and their corresponding weights.

[0126] It can be understood that the optical communication equipment between the two ends of the same platform has four length distance ranges, namely 0-20Km, 20-40Km, 40-80Km, and above 80Km, and each distance range has corresponding transmission requirements.

[0127] In the specific implementation of step S401, multiple transmission factors and their corresponding weights included in the transmission requirements corresponding to each distance range are obtained from the communication optical path information.

[0128] It should be noted that transmission factors include but are not limited to path length, that is, the total length of the communication optical path; the number of jumper points in the optical path; the loss value of the optical cable; the access point loss value in the communication optical path and other factors: such as optical cable type, bandwidth, stability, etc.

[0129] For example: path length weight: 0.3; jumper number weight: 0.2; optical cable loss weight: 0.2; access point loss weight: 0.2; other factor weights: 0.1.

[0130] Step S402: Calculate the comprehensive scores of the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and other linkable communication optical paths according to multiple transmission factors and their corresponding weights.

[0131] It can be understood that the other linkable communication optical paths are all linkable communication optical paths except the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path among all linkable communication optical paths.

[0132] For example, there are three light paths, and their scores are calculated as follows:

[0133] Communication optical path A with the least loss: path length score = 0.8; number of jumpers score = 0.7; optical cable loss score = 0.6; access point loss score = 0.6; other factors score = 0.5.

[0134] The comprehensive score = (0.8×0.3)+(0.7×0.2)+(0.6×0.2)+(0.6×0.2)+(0.5×0.1)=0.67.

[0135] Communication optical path B with the least jumps: path length score = 0.9; number of jumps score = 0.6; optical cable loss score = 0.7; access point loss score = 0.8; other factors score = 0.6.

[0136] The comprehensive score = (0.9×0.3)+(0.6×0.2)+(0.7×0.2)+(0.8×0.2)+(0.6×0.1)=0.75.

[0137] Shortest path communication optical path C: path length score = 0.7; number of jumpers score = 0.8; optical cable loss score = 0.8; access point loss score = 0.7; other factors score = 0.7.

[0138] The comprehensive score = (0.7×0.3)+(0.8×0.2)+(0.8×0.2)+(0.7×0.2)+(0.7×0.1)=0.74.

[0139] Step S403: Determine the linkable communication optical path corresponding to the maximum comprehensive score among all comprehensive scores as the new current communication optical path used from the sending end to the receiving end.

[0140] In the specific implementation of step S403, for example, in the example shown in step S402, the least-hop communication optical path B is determined as the new current communication optical path used from the transmitting end to the receiving end.

[0141] In the embodiment of the present invention, the impact of actual end-to-end transmission factors on the service is considered from multiple angles, and the total score of each linkable communication optical path is determined in combination with each transmission factor, so as to determine the linkable communication optical path with the largest comprehensive score as the new current communication optical path used from the sending end to the receiving end. The reliability of the communication optical path determination is improved, and the accuracy of data transmission is further guaranteed.

[0142] Corresponding to the end-to-end power communication optical path determination method provided by the above embodiment of the present invention, see Figure 5 , shows a structural block diagram of an end-to-end power communication optical path determination device provided by an embodiment of the present invention.

[0143] The determining device includes: an acquiring unit 501 , a first searching unit 502 , a matching unit 503 , a second searching unit 504 and a determining unit 505 .

[0144] The acquisition unit 501 is used to acquire the corresponding optical cable information and communication optical path information of the transmitting end and the receiving end.

[0145] The first searching unit 502 is used to search all linkable communication optical paths from the sending end to the receiving end according to the optical cable information, the communication optical path information and the path searching algorithm.

[0146] The matching unit 503 is used to match the total length of the optical cable of each linkable communication optical path with all distance ranges in the communication optical path information to obtain the distance range corresponding to each linkable communication optical path when a fault is detected in the current communication optical path used from the transmitter to the receiver.

[0147] The second searching unit 504 is used to search for the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path from all linkable communication optical paths.

[0148] The determination unit 505 is used to determine a new current communication optical path used from the sending end to the receiving end according to the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and the distance range corresponding to each linkable communication optical path.

[0149] In the embodiment of the present invention, the optical cable information and communication optical path information corresponding to the transmitting end and the receiving end are obtained; all linkable communication optical paths are searched according to the optical cable information, the communication optical path information and the path search algorithm; if a fault is detected in the current communication optical path, the total length of the optical cable of each linkable communication optical path is matched with all the distance ranges in the communication optical path information to obtain the distance range corresponding to each linkable communication optical path; the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path are searched from all linkable communication optical paths; a new current communication optical path is determined according to the shortest path communication optical path, the least jump communication optical path, the least loss communication optical path and the distance range corresponding to each linkable communication optical path. The new current communication optical path is determined by using the optical cable information and the communication optical path information to realize the rapid recovery of the communication optical path, and ensure the continuity of the business and the accuracy of data transmission.

[0150] Combination Figure 5 According to the content shown, the determination device also includes: a judgment unit, a fault determination unit and a normal determination unit.

[0151] The judging unit is used to judge whether the physical connection of the current communication optical path used by the sending end to the receiving end is correct, and whether the signal transmission of the current communication optical path meets the preset requirements.

[0152] The fault determination unit is used to determine that a fault occurs in the current communication optical path when the physical connection of the current communication optical path is incorrect and / or the signal transmission of the current communication optical path does not meet preset requirements.

[0153] The normal determination unit is used to determine that the current communication optical path is normal when the physical connection of the current communication optical path is correct and the signal transmission of the current communication optical path meets the preset requirements.

[0154] Combination Figure 5 As shown in the content, the second search unit 504 includes: an extraction module, a first determination module, a calculation module, a second determination module and a third determination module.

[0155] The extraction module is used to extract the total length of the optical cables of all linkable communication optical paths.

[0156] The first determining module is used to determine the linkable communication optical path corresponding to the shortest length of the total length of the optical cables of all linkable communication optical paths as the shortest path communication optical path.

[0157] A calculation module is used to calculate the total number of optical cable sections of each linkable communication optical path.

[0158] The second determination module is used to determine the linkable communication optical path corresponding to the minimum total number of optical cable segments as the minimum jump communication optical path.

[0159] The third determination module is used to determine the least loss communication optical path according to the total number of optical cable sections and the number of connection points of each linkable communication optical path.

[0160] Combination Figure 5 The content shown, the third determination module, includes: a first calculation submodule, an acquisition submodule, a second calculation submodule and a determination submodule.

[0161] The first calculation submodule is used to calculate the number of connection points of each linkable communication optical path among all linkable communication optical paths.

[0162] The acquisition submodule is used to acquire the optical cable loss value from the optical cable information and to acquire the access port loss value from the communication optical path information.

[0163] The second calculation submodule is used to calculate the total loss value of each linkable communication optical path according to the total number of optical cable sections, the number of connection points, the optical cable loss value and the access port loss value.

[0164] The determination submodule is used to determine the linkable communication optical path corresponding to the minimum total loss value among all the total loss values ​​as the communication optical path with the least loss.

[0165] Combination Figure 5 The content shown, the determination unit 505, includes: an acquisition module, a comprehensive score calculation module and a fourth determination module.

[0166] The acquisition module is used to obtain the corresponding transmission requirements of each distance range from the communication optical path information, and the transmission requirements include multiple transmission factors and their corresponding weights.

[0167] A comprehensive score calculation module is used to calculate the comprehensive scores of the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and other linkable communication optical paths according to multiple transmission factors and their corresponding weights, wherein the other linkable communication optical paths are all linkable communication optical paths except the shortest path communication optical path, the least hop communication optical path and the least loss communication optical path among all linkable communication optical paths.

[0168] The fourth determination module is used to determine the linkable communication optical path corresponding to the maximum comprehensive score among all the comprehensive scores as the new current communication optical path used from the sending end to the receiving end.

[0169] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can refer to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. The system and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without creative work.

[0170] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0171] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for determining an end-to-end power communication optical path, characterized in that: The method comprises: Obtain the corresponding optical cable information and communication optical path information of the transmitting end and the receiving end; Searching all linkable communication optical paths from the sending end to the receiving end according to the optical cable information, the communication optical path information and a path search algorithm; When a fault is detected in the current communication optical path used from the transmitting end to the receiving end, the total length of the optical cable of each linkable communication optical path is matched with all the distance ranges in the communication optical path information to obtain the distance range corresponding to each linkable communication optical path; Find the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path from all linkable communication optical paths; A new current communication optical path used from the sending end to the receiving end is determined based on the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and the distance range corresponding to each of the linkable communication optical paths.

2. The method according to claim 1, characterized in that When a fault is detected in the current communication optical path used from the transmitting end to the receiving end, before matching the total length of the optical cable of each linkable communication optical path with all distance ranges in the communication optical path information to obtain the distance range corresponding to each linkable communication optical path, the method further includes: Determine whether the physical connection of the current communication optical path used by the transmitting end to the receiving end is correct, and determine whether the signal transmission of the current communication optical path meets the preset requirements; When the physical connection of the current communication optical path is incorrect, and / or the signal transmission of the current communication optical path does not meet the preset requirements, determining that the current communication optical path has a fault; When the physical connection of the current communication optical path is correct and the signal transmission of the current communication optical path meets the preset requirements, it is determined that the current communication optical path is normal.

3. The method according to claim 1, characterized in that The method of searching for the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path from all linkable communication optical paths comprises: Extract the total length of optical cables of all linkable communication optical paths; The linkable communication optical path corresponding to the shortest length among the total lengths of the optical cables of all linkable communication optical paths is determined as the shortest path communication optical path; Calculating the total number of optical cable segments of each of the linkable communication optical paths; Determine the linkable communication optical path corresponding to the minimum number of the total optical cable segments as the least-hop communication optical path; The communication optical path with the least loss is determined according to the total number of optical cable sections and the number of connection points of each of the linkable communication optical paths.

4. The method according to claim 3, characterized in that Determining the least-loss communication optical path according to the total number of optical cable segments and the number of connection points of each of the linkable communication optical paths comprises: For each of the linkable communication optical paths among all the linkable communication optical paths, calculating the number of connection points of each of the linkable communication optical paths; Acquire an optical cable loss value from the optical cable information, and acquire an access port loss value from the communication optical path information; Calculate the total loss value of each of the linkable communication optical paths according to the total number of optical cable segments, the number of connection points, the optical cable loss value and the access point loss value; The linkable communication optical path corresponding to the minimum total loss value among all total loss values ​​is determined as the least-loss communication optical path.

5. The method according to claim 1, characterized in that The determining of a new current communication optical path used by the transmitting end to the receiving end according to the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path, and the distance range corresponding to each of the linkable communication optical paths comprises: Acquire a transmission requirement corresponding to each of the distance ranges from the communication optical path information, wherein the transmission requirement includes a plurality of transmission factors and their corresponding weights; According to the plurality of transmission factors and their corresponding weights, the comprehensive scores of the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and the other linkable communication optical paths are calculated, wherein the other linkable communication optical paths are all linkable communication optical paths except the shortest path communication optical path, the least hop communication optical path and the least loss communication optical path among all linkable communication optical paths; The linkable communication optical path corresponding to the maximum comprehensive score among all comprehensive scores is determined as a new current communication optical path used from the sending end to the receiving end.

6. An end-to-end power communication optical path determination device, characterized in that: The device comprises: An acquisition unit, used to acquire the corresponding optical cable information and communication optical path information of the transmitting end and the receiving end; A first searching unit, configured to search all linkable communication optical paths from the sending end to the receiving end according to the optical cable information, the communication optical path information and a path searching algorithm; A matching unit, configured to match the total length of the optical cable of each of the linkable communication optical paths with all the distance ranges in the communication optical path information to obtain the distance range corresponding to each of the linkable communication optical paths when a fault is detected in the current communication optical path used from the sending end to the receiving end; A second search unit is used to search for the shortest path communication optical path, the least jump communication optical path and the least loss communication optical path from all linkable communication optical paths; A determination unit is used to determine a new current communication optical path used from the sending end to the receiving end based on the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and the distance range corresponding to each of the linkable communication optical paths.

7. The device according to claim 6, characterized in that The device also includes: A judging unit, used to judge whether the physical connection of the current communication optical path used by the transmitting end to the receiving end is correct, and whether the signal transmission of the current communication optical path meets the preset requirements; A fault determination unit, configured to determine that a fault occurs in the current communication optical path when the physical connection of the current communication optical path is incorrect and / or the signal transmission of the current communication optical path does not meet preset requirements; The normal determination unit is used to determine that the current communication optical path is normal when the physical connection of the current communication optical path is correct and the signal transmission of the current communication optical path meets the preset requirements.

8. The device according to claim 6, characterized in that The second searching unit comprises: An extraction module, used for extracting the total length of optical cables of all linkable communication optical paths; A first determining module is used to determine the linkable communication optical path corresponding to the shortest length among the total lengths of the optical cables of all linkable communication optical paths as the shortest path communication optical path; A calculation module, used for calculating the total number of optical cable segments of each of the linkable communication optical paths; A second determination module is used to determine the linkable communication optical path corresponding to the minimum number of the total optical cable segments as the least jump communication optical path; The third determination module is used to determine the least loss communication optical path according to the total number of optical cable sections and the number of connection points of each of the linkable communication optical paths.

9. The device according to claim 8, characterized in that The third determining module comprises: A first calculation submodule is used to calculate the number of connection points of each linkable communication optical path among all linkable communication optical paths; An acquisition submodule, used to acquire an optical cable loss value from the optical cable information, and to acquire an access port loss value from the communication optical path information; A second calculation submodule, used for calculating the total loss value of each of the linkable communication optical paths according to the total number of optical cable segments, the number of connection points, the optical cable loss value and the access port loss value; The determination submodule is used to determine the linkable communication optical path corresponding to the minimum total loss value among all the total loss values ​​as the minimum loss communication optical path.

10. The device according to claim 6, characterized in that The determining unit comprises: An acquisition module, used for acquiring a transmission requirement corresponding to each of the distance ranges from the communication optical path information, wherein the transmission requirement includes a plurality of transmission factors and their corresponding weights; A module for calculating a comprehensive score, used for calculating the comprehensive scores of the shortest path communication optical path, the least hop communication optical path, the least loss communication optical path and other linkable communication optical paths according to the plurality of transmission factors and their corresponding weights, wherein the other linkable communication optical paths are all linkable communication optical paths except the shortest path communication optical path, the least hop communication optical path and the least loss communication optical path among all linkable communication optical paths; The fourth determination module is used to determine the linkable communication optical path corresponding to the maximum comprehensive score among all comprehensive scores as the new current communication optical path used by the sending end to the receiving end.

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