Optical fiber communication wiring intelligent management method and system

Abstract

This invention relates to the fields of optical fiber communication networks, digital information transmission, optical fiber broadband operation services, next-generation information networks, network resource management, IoT sensing, and industrial internet operation and maintenance technologies, and particularly to an intelligent management method and system for optical fiber communication cabling. The method establishes a formal cabling resource model, a shadow cabling buffer, and a conflict sampling strategy table. After a change in the plugging status of an optical fiber cabling port, it collects port status data, jumper end identification data, optical link quality data, and service resource constraint data to generate an initial cabling evidence set and establish a shadow cabling relationship. When the identification, link, time, and resource evidence are inconsistent, an evidence conflict type is generated. Secondary verification data is collected according to the corresponding secondary sampling path, and the credibility level is reconstructed to generate a credible cabling result, a cabling result pending verification, or a conflict cabling result. These results are then written into the formal cabling resource model or the corresponding status is frozen to improve the accuracy of optical fiber cabling resource management.

Description

Technical Field

[0001] This invention relates to the fields of optical fiber communication networks, digital information transmission, optical fiber broadband operation services, next-generation information networks, network resource management, Internet of Things sensing, and industrial Internet operation and maintenance, and particularly to an intelligent management method and system for optical fiber communication cabling. Background Technology

[0002] In fiber optic communication cabling scenarios, the large number of fiber optic distribution ports and complex patch cord connections can easily lead to discrepancies between port records and actual on-site connection status during maintenance. Existing technologies include solutions that use electronic tags and optical power changes to assist in determining fiber optic connection relationships. For example, Chinese patent application CN111007607A, entitled "A High-Capacity Intelligent Fiber Optic Distribution Frame and Management Method," discloses a method for obtaining first electronic tag information from the optical cable and second electronic tag information from the pigtail, determining whether the two types of electronic tag information are consistent; if consistent, obtaining the real-time connection relationship between the pigtail and the optical line terminal, and comparing it with a third electronic tag that records a preset connection relationship; this solution also discloses a method for determining whether a connection exists between the pigtail and the optical line terminal by obtaining the first power during normal communication operation, obtaining the second power after bending the pigtail, and determining whether the difference between the first and second power is greater than a threshold.

[0003] The above solutions can improve the efficiency of fiber optic distribution management to some extent. However, in actual fiber optic distribution operation and maintenance, port connection status, patch cord identification, optical link quality, and service resource constraints may all be involved in the judgment. When data from different sources is inconsistent, if the system directly feeds back invalid information, adjusts connection relationships, or updates resource status based on a single judgment result, it may still lead to the erroneous modification of formal distribution resource records or the misjudgment of real physical connections as invalid connections. Therefore, existing fiber optic communication distribution management technology still has the following shortcomings: when inconsistencies occur in multi-source distribution evidence, there is a lack of a processing mechanism that can identify the source of conflict, conduct targeted verification, and control the writing of resource status before formal resource writing. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent management method and system for optical fiber communication cabling, addressing the shortcomings of existing technologies. This system aims to prevent shadow cabling relationships from being directly written into the formal cabling resource model when inconsistencies exist between port status data, jumper end identification data, optical link quality data, and service resource constraint data after a change in the plugging status of an optical fiber cabling port. Furthermore, it can select the corresponding secondary sampling path based on the source of inconsistency, reconstruct the credibility level of various types of evidence, and generate credible cabling results, cabling results awaiting verification, or conflicting cabling results. This reduces the risk of the formal cabling resource model being incorrectly written, the service layer occupancy status being incorrectly updated, and the jumper identification binding status being incorrectly confirmed.

[0005] This invention achieves the above objective through the following technical solution: an intelligent management method for optical fiber communication wiring, comprising the following steps: Modeling steps: Establish a formal wiring resource model, a shadow wiring buffer, and a conflict sampling strategy table; Initial data collection steps: After a change in the plugging status of the fiber optic distribution port, collect port status data, jumper end identification data, optical link quality data, and service resource constraint data to generate an initial distribution evidence set; Temporary storage step: Establish shadow wiring relationships based on the initial wiring evidence set; Conflict step: Generate identification evidence, link evidence, time evidence, and resource evidence based on the initial wiring evidence set, and generate evidence conflict types when the evidence is inconsistent; Sampling steps: Query the conflict sampling strategy table according to the type of evidence conflict, and collect secondary verification data according to the corresponding secondary sampling path; Reconstruction steps: Reconstruct the credibility level of each piece of evidence based on the secondary verification data, and generate credible wiring results, wiring results to be verified, or conflict wiring results; Handling steps: After generating a trusted wiring result, write the shadow wiring relationship into the formal wiring resource model; after generating a wiring result to be reviewed or a conflict wiring result, prohibit the shadow wiring relationship from being written into the formal wiring resource model, and freeze the corresponding physical layer wiring status, business layer occupancy status or fiber jumper identifier binding status according to the evidence conflict type.

[0006] Specifically, this method addresses the problem in fiber optic cabling where "when identification results, link status, time relationships, and service resource records contradict each other, it's impossible to reliably decide whether to write them into the formal cabling resource model." The formal cabling resource model stores confirmed connection states, the shadow cabling buffer stores unconfirmed temporary connection states, and the conflict sampling strategy table stores secondary sampling paths corresponding to different evidence conflict types. Port status data can come from in-situ detection elements at fiber optic cabling ports, patch cord identification data can come from electronic tag readers or encoding readers, optical link quality data can come from optical modules or optical link monitoring devices, and service resource constraint data can come from the network operation and maintenance platform. After the initial cabling evidence set is formed, the system does not directly update the formal cabling resource model but first establishes shadow cabling relationships; then, it determines the source of conflict based on the consistency between identification evidence, link evidence, time evidence, and resource evidence. If a conflict occurs, the system selects a secondary sampling path according to the evidence conflict type and corrects the evidence credibility level using secondary verification data. Only after a reliable wiring result is generated will the shadow wiring relationship be written into the formal wiring resource model; if a wiring result awaiting review or a conflicting wiring result is generated, writing will be prohibited, and the corresponding state will be frozen according to the source of the conflict. This can prevent formal data from being incorrectly overwritten due to label misreading, link jitter, insertion time offset, or incorrect business resource constraints.

[0007] Further Solution: In the modeling steps: The formal cabling resource model includes port resource records, patch cord resource records, device resource records, service resource records, and allowed connection relationship records; the shadow cabling buffer is used to store shadow cabling relationships not written into the formal cabling resource model; the conflict sampling strategy table is used to record the secondary sampling paths corresponding to different evidence conflict types. Specifically, the formal cabling resource model can be implemented using database tables, key-value storage structures, or resource object trees. Port resource records must at least store the fiber optic patch cord port number, its associated device number, port occupancy status, and port connectable range. Patch cord resource records must at least store the patch cord number, first patch cord end identifier, second patch cord end identifier, and patch cord usage status. Device resource records store the correspondence between fiber optic patch panels, optical modules, switching equipment, optical line terminal equipment, or network access equipment. Service resource records store the service number, service type, service-occupied port, and service activation status. Allowed connection relationship records store which port combinations are allowed to establish connections. The shadow cabling buffer can be implemented using temporary data tables; when shadow cabling relationships are stored in this area, the establishment time, source evidence identifier, and processing status can be set. The conflict sampling strategy table can be implemented using a rule table. Each rule includes the evidence conflict type, corresponding secondary sampling path, sampling object, number of samplings, sampling period, and output data type. These three data objects work together: the formal wiring resource model ensures the stability of the confirmed state, the shadow wiring buffer prevents unconfirmed data from polluting the formal state, and the conflict sampling strategy table ensures that different conflicts can enter the corresponding verification process.

[0008] Further Solution: In the conflict resolution process: Identification evidence is generated by whether the two patch cord end identifiers belong to the same patch cord; Link evidence is generated by at least two of the following: the direction of optical power change, the direction of reflection loss change, the direction of link continuity change, and the direction of bit error rate change before and after the two fiber optic distribution ports change their connection status; Time evidence is generated by whether the time difference between the status changes of the two fiber optic distribution ports falls within the double-ended patching time window; Resource evidence is generated by whether the two fiber optic distribution ports meet the allowed connection relationship record and service resource record. Specifically, identification evidence is used to determine whether the two patch cord end identifiers belong to the same patch cord. For example, the patch cord resource record stores "Patch cord number A corresponds to the first patch cord end identifier A1 and the second patch cord end identifier A2". If the two fiber optic distribution ports read A1 and A2 respectively, then the identification evidence meets the same patch cord determination condition. Link evidence is used to determine whether the two fiber optic distribution ports exhibit the same connection characteristics in terms of optical link quality. In actual implementation, the direction of optical power change, the direction of reflection loss change, the direction of link continuity change, and the direction of bit error rate change before and after patching can be collected. For example, after a connection is established, if the received optical power decreases from a low value to within the allowable range, the link connection status changes from disconnected to connected, and the bit error rate changes from divergent to convergent, the link evidence can be considered to be credible. Temporal evidence is used to determine if the time difference between the state changes of two ports is within a reasonable operating time. Resource evidence is used to determine if two ports meet the requirements of the allowed connection relationship record and service resource record. These four types of evidence verify the same wiring event from four perspectives: identity, physical link, temporal relationship, and service resources, ensuring that the system does not rely on a single piece of evidence for the final judgment.

[0009] Further solutions: Evidence conflict types include trusted link conflict type, trusted link identifier conflict type, time drift conflict type, and resource constraint conflict type. The trusted link identifier conflict type is generated when the identifier evidence meets the same jumper determination condition, but the link evidence does not. The trusted link identifier conflict type is generated when the link evidence meets the same link determination condition, but the identifier evidence does not. The time drift conflict type is generated when the identifier evidence meets the same jumper determination condition, but the time evidence does not meet the double-ended insertion time window. The resource constraint conflict type is generated when the identifier evidence and link evidence meet the same connection determination condition, but the resource evidence does not meet the allowed connection relationship record or service resource record. Specifically, evidence conflict types are used to clarify the source of conflict. A trusted link identifier conflict type indicates that the two jumper end identifiers belong to the same jumper, but the optical link quality change cannot support that the two fiber optic distribution ports have formed the same link. This situation may be caused by improper jumper insertion, optical module abnormality, excessive fiber bending loss, or optical link quality sampling error. A trusted link identifier conflict type indicates that the optical link quality change supports the existence of a connection relationship between the two ports, but the two jumper end identifiers do not belong to the same jumper. This situation may be caused by mis-attached electronic tags, crosstalk between adjacent ports, excessive tag reading distance, or damaged tags at the patch cord end. A time drift conflict type indicates that the patch cord identity is reliable, but the time difference between the two port connections exceeds the double-ended connection time window. This situation may be caused by excessive maintenance distance, field operation interruption, or an excessively narrow time window setting. A resource constraint conflict type indicates that both the identification evidence and link evidence support the same connection, but this connection does not conform to the allowed connection relationship record or business resource record. This situation is common when a physical connection has been established in the field, but business resources cannot be occupied. Through the above classification, the system can adopt different handling procedures for different conflict sources.

[0010] Further Solution: In the sampling steps, the secondary sampling paths include the link reverse verification path, the identifier reread verification path, the time window reconstruction path, and the resource layering freeze path; the link reverse verification path corresponds to the identifier trusted link conflict type; the identifier reread verification path corresponds to the link trusted identifier conflict type; the time window reconstruction path corresponds to the time drift conflict type; and the resource layering freeze path corresponds to the resource constraint conflict type. Specifically, the correspondence in the sampling steps is the key processing rule of this solution. The link reverse verification path corresponds to the identifier trusted link conflict type because the main concern of this conflict is whether the optical link is actually formed, so it is necessary to re-collect the optical power, bit error rate, and heartbeat response of the optical modules at both ends. The identifier reread verification path corresponds to the link trusted identifier conflict type because the main concern of this conflict is whether the identifier at the jumper end has been misread, so it is necessary to perform multiple rounds of reading on the target port, adjacent ports, and jumper end. The time window reconstruction path corresponds to the time drift conflict type because the main concern of this conflict is whether the double-ended plugging time window matches the on-site operation rhythm, so it is necessary to redetermine the time window based on historical wiring events. The resource constraint conflict type corresponds to the resource layer freezing path because the main issue in this conflict is not whether the physical layer connection exists, but whether the business layer occupancy is permitted. Therefore, it is necessary to separate the shadow wiring relationship into physical layer connection relationship and business layer occupancy relationship. Establishing the above one-to-one correspondence through the conflict sampling strategy table can avoid the system using the same retesting method for all conflicts, thereby improving the efficiency of secondary sampling and the accuracy of judgment.

[0011] Further solution: The link reverse verification path includes: collecting the received optical power change sequence, transmitted optical power change sequence, bit error rate change sequence, and link heartbeat response sequence from the optical modules at both ends corresponding to the two fiber optic distribution ports; determining whether the two fiber optic distribution ports meet the bilateral reverse consistency condition based on the received optical power change sequence, transmitted optical power change sequence, bit error rate change sequence, and link heartbeat response sequence; increasing the credibility level of the link evidence when the bilateral reverse consistency condition is met; decreasing the credibility level of the identification evidence when the bilateral reverse consistency condition is not met, and generating a wiring result to be reviewed. Specifically, the link reverse verification path is suitable for situations where the identification evidence is credible but the link evidence is not. In implementation, the system obtains the received optical power change sequence, transmitted optical power change sequence, bit error rate change sequence, and link heartbeat response sequence from the optical modules at both ends corresponding to the two fiber optic distribution ports. The received optical power change sequence is used to observe whether the transmission changes at the other end are reflected on the receiving side at this end; the transmitted optical power change sequence is used to observe whether the transmission state at this end is stable; the bit error rate change sequence is used to observe whether the data transmission tends to be stable after connection; and the link heartbeat response sequence is used to observe whether the link layer can form a continuous response. If two fiber optic distribution ports form a true, identical link, then changes in received optical power and transmitted optical power at both ends should be correlated, bit error rate changes should converge from an abnormal state to a stable state, and link heartbeat responses should be continuously returned. When these two-end reverse consistency conditions are met, the system increases the credibility level of the link evidence; if these conditions are not met, it indicates that although the identification appears correct, the actual optical link has not formed a reliable connection. Therefore, the credibility level of the identification evidence is reduced, and a distribution result awaiting verification is generated. This process avoids confirming the connection solely based on the jumper end identification.

[0012] Further solution: The identifier rereading verification path includes: performing multiple rounds of identifier reading on two fiber optic distribution ports, two adjacent ports of two fiber optic distribution ports, and two jumper ends; generating identifier stability results and identifier crosstalk results based on the results of the multiple rounds of identifier reading; increasing the credibility level of the identifier evidence when the identifier stability result meets the stability condition and the identifier crosstalk result indicates no crosstalk; freezing the jumper identifier binding state and generating a conflicting distribution result when the identifier stability result does not meet the stability condition or the identifier crosstalk result indicates crosstalk exists. Specifically, the identifier rereading verification path is suitable for situations where the link evidence is credible but the identifier evidence conflicts. In implementation, the system not only rereads the jumper end identifiers of the two target fiber optic distribution ports, but also reads the adjacent ports of the two target fiber optic distribution ports, and performs multiple rounds of identifier reading on the two jumper ends. The multiple rounds of identifier reading can be set to three, five, or ten rounds, and each round records the read jumper end identifier, reading time, and reading strength. The identifier stability result is used to determine whether the same identifier is continuously obtained at the same reading location in multiple rounds of reading. The identifier crosstalk result is used to determine whether the adjacent ports read the jumper end identifier corresponding to the target port. If the target port shows stable reading results over multiple rounds, and no adjacent ports read the same identifier, the credibility level of the identifier evidence is increased. If the reading results are unstable over multiple rounds, or adjacent ports read the same identifier, it indicates misreading of the identifier, tag crosstalk, or incorrect binding at the patch cord end. The system freezes the patch cord identifier binding status and generates a conflict wiring result. This process can pinpoint the problem of "the link is connected but the tag is incorrect" to the identifier layer, rather than directly negating the optical link connection.

[0013] Further solution: The time window reconstruction path includes: statistically analyzing the insertion time difference between the two ends of the same patch cord in historical wiring events to generate a historical double-ended insertion time distribution; expanding or shrinking the double-ended insertion time window based on the historical double-ended insertion time distribution; regenerating time evidence using the expanded or shrunken double-ended insertion time window; increasing the credibility level of the time evidence when the regenerated time evidence meets the double-ended insertion time window; and generating wiring results to be reviewed when the regenerated time evidence still does not meet the double-ended insertion time window. Specifically, the time window reconstruction path is suitable for situations where the identified evidence is credible but the insertion time difference between the two ports exceeds the double-ended insertion time window. In implementation, the system calls historical wiring events, extracts the insertion time difference between the two ends of the same patch cord, and forms a historical double-ended insertion time distribution. If historical data shows that field operators typically complete the insertion of both ends over a longer period of time, the original double-ended insertion time window may be too narrow, and the system can expand the window; if historical data shows that most insertions of both ends are completed in a short time, the system can shrink the window to reduce false matches. After regenerating the time evidence, if the time difference between the status changes of the two fiber optic distribution ports falls within the adjusted double-ended plugging time window, the credibility level of the time evidence is increased; if the double-ended plugging time window is still not met after continuous adjustments, a distribution result pending review is generated. In this way, the system can adapt to the actual operating rhythm under different equipment rooms, different fiber optic distribution frame distances, and different maintenance procedures, avoiding misjudgments caused by fixed time windows.

[0014] Further Solution: The resource tiered freezing path includes: splitting shadow cabling relationships into physical layer connection relationships and service layer occupancy relationships; allowing physical layer connection relationships to enter the physical layer pending confirmation state when both identification evidence and link evidence meet the same connection determination condition; and prohibiting service layer occupancy relationships from entering the service layer occupancy state when resource evidence does not meet the allowed connection relationship record or service resource record. Specifically, the resource tiered freezing path applies to situations where both identification evidence and link evidence show a reliable connection relationship, but resource evidence indicates that occupying service resources is not allowed. In implementation, the system splits shadow cabling relationships into physical layer connection relationships and service layer occupancy relationships. Physical layer connection relationships represent two fiber optic cabling ports forming a field connection through patch cords; service layer occupancy relationships represent whether this field connection can occupy a certain service resource. If identification evidence and link evidence meet the same connection determination condition, it indicates that the field connection may actually exist, therefore allowing the physical layer connection relationship to enter the physical layer pending confirmation state. If resource evidence does not meet the allowed connection relationship record or service resource record, it indicates that the connection cannot directly carry the target service, therefore prohibiting the service layer occupancy relationship from entering the service layer occupancy state. This process avoids directly deleting the actual physical connection and also prevents the incorrect occupation of non-compliant business resources. By separating the physical layer and the business layer, the network operation and maintenance platform can accurately distinguish between the two states: "the line is connected" and "the service cannot be activated."

[0015] Further Solution: The reconstruction steps include: setting initial credibility levels for identification evidence, link evidence, time evidence, and resource evidence respectively; increasing or decreasing the initial credibility level of the corresponding evidence based on secondary verification data to obtain the reconstructed credibility level; generating a credible wiring result when the reconstructed credibility levels of identification evidence, link evidence, time evidence, and resource evidence all meet the credibility threshold; generating a wiring result to be reviewed when the reconstructed credibility level of any evidence does not meet the credibility threshold and there is no freeze trigger condition; and generating a conflict wiring result when a freeze trigger condition exists. Specifically, the reconstruction steps are used to transform secondary verification data into executable results. The system first sets initial credibility levels for identification evidence, link evidence, time evidence, and resource evidence respectively. The initial credibility level can be represented by 0 to 100, or by three levels: low, medium, and high. After the secondary verification data is generated, the system increases or decreases the initial credibility level of the corresponding evidence based on the verification results. For example, if the link reverse verification path passes, the credibility level of the link evidence is increased; if the link reverse verification path fails, the credibility level of the link evidence or the credibility level of the identification evidence is decreased. When the identifier reread verification path passes, the credibility level of the identifier evidence is increased; when identifier crosstalk is detected, the credibility level of the identifier evidence is decreased and a freeze is triggered. When the time window reconstruction path passes, the credibility level of the time evidence is increased; when the resource layer freeze path finds that business layer occupancy is not allowed, the credibility level of the resource evidence is decreased and a business layer freeze is triggered. When the credibility levels of all four types of evidence meet the credibility threshold after reconstruction, the system generates a credible wiring result. When there is insufficient credibility but no freeze trigger condition, the system generates a wiring result pending review. When a freeze trigger condition exists, the system generates a conflict wiring result. This process ensures that the generated results have clear data basis, rather than relying on manual experience judgment.

[0016] Further solutions: Freeze trigger conditions include: the identifier reread verification path yields an identifier crosstalk result; or, the link reverse verification path yields a result indicating that the reverse consistency condition between the two ends is not met; or, the resource layer freeze path yields a result indicating that the service layer occupancy relationship does not meet the allowed connection relationship record or service resource record; or, the time window reconstruction path yields a result indicating that the two-end plug-in time window is not met twice consecutively. Specifically, freeze trigger conditions are used to define which situations prevent automatic writing to the formal wiring resource model. If the identifier reread verification path yields an identifier crosstalk result, it indicates that there may be electronic tag reading crossover between the target port and adjacent ports; continuing to write will lead to incorrect jumper identifier binding. If the link reverse verification path yields a result indicating that the reverse consistency condition between the two ends is not met, it indicates that a stable correspondence has not been formed between the optical modules at both ends; continuing to write will lead to an error in the physical layer wiring status. If the resource layer freeze path yields a result indicating that the service layer occupancy relationship does not meet the allowed connection relationship record or service resource record, it indicates that the field connection does not allow direct occupation of the target service resource; continuing to write will cause misoccupancy of service resources. The time window reconstruction path yielded two consecutive results indicating that the double-ended plugging time window was not met, suggesting that the two port plugging events should not be merged into the same wiring event. When this condition is met, the system does not perform a formal write operation but instead enters a freeze or pending review process, thus ensuring that the formal wiring resource model is not overwritten by high-risk data.

[0017] Further Solution: In the handling steps: When the evidence conflict type is a trusted link conflict, freeze the physical layer wiring status and output a link reverse verification failure message; when the evidence conflict type is a trusted link identifier conflict, freeze the jumper identifier binding status and output an identifier reread verification failure message; when the evidence conflict type is a time drift conflict, freeze the shadow wiring relationship and output a time window reconstruction failure message; when the evidence conflict type is a resource constraint conflict, freeze the service layer occupancy status and output a service resource constraint failure message. Specifically, the handling steps select the freezing object and output information according to the evidence conflict type. A trusted link conflict type corresponds to freezing the physical layer wiring status, indicating that the system temporarily does not recognize that the shadow wiring relationship has formed a reliable physical layer connection, and outputs a link reverse verification failure message. A trusted link identifier conflict type corresponds to freezing the jumper identifier binding status, indicating that the system temporarily does not accept the binding relationship between the current jumper end identifier and the port, and outputs an identifier reread verification failure message. A time drift conflict type corresponds to freezing the shadow wiring relationship, indicating that the system temporarily does not write the shadow wiring relationship into the formal wiring resource model, and outputs a time window reconstruction failure message. Resource constraint conflict types correspond to freezing the business layer's occupancy status. This means the system can retain the physical layer's pending confirmation status, but does not allow business resources to enter the occupancy status, and simultaneously outputs business resource constraint failure information. This freezing method confines different conflicts to their corresponding levels, preventing a local anomaly from escalating into a systemic error in the formal wiring resource model.

[0018] Further Solution: A stability verification step is included before the handling steps: After generating a trusted wiring result, the optical link quality data corresponding to the two fiber optic wiring ports is continuously sampled; if the continuously sampled optical power, reflection loss, bit error rate, and link connectivity all meet the stability verification conditions, the write operation in the handling steps is executed; if the continuously sampled optical power, reflection loss, bit error rate, or link connectivity does not meet the stability verification conditions, the trusted wiring result is downgraded to a wiring result pending review. Specifically, the stability verification step is used to review the trusted wiring result before writing it. After the trusted wiring result is generated, the system continues to continuously sample the optical link quality data corresponding to the two fiber optic wiring ports. The continuous sampling time can be set to ten seconds to three minutes, and the sampling period can be set to one second, five seconds, or ten seconds. If the continuously sampled optical power remains within the allowable range, the reflection loss does not exceed the allowable range, the bit error rate does not exceed the allowable range, and the link connectivity remains connected, the write operation in the handling steps is executed. If optical power drops significantly, reflection loss increases, bit error rate deteriorates, or the link connection changes from connected to disconnected, the trusted wiring result is downgraded to a wiring result requiring verification. This step is used to avoid misjudgments caused by brief periods of stability. For example, optical power may briefly enter the allowable range immediately after a jumper is inserted, but subsequently decrease due to poor end-face contact or bending loss. The stability verification step can identify such unstable connections before the actual write operation.

[0019] Further Solution: The output steps include: writing the evidence conflict type, secondary sampling path, secondary verification data, reconstructed credibility level, and frozen object into the wiring evidence chain record; and sending the wiring evidence chain record to the network operation and maintenance platform. Specifically, the output steps are used to form a traceable wiring evidence chain record. The wiring evidence chain record includes at least the evidence conflict type, secondary sampling path, secondary verification data, reconstructed credibility level, and frozen object. The evidence conflict type indicates what type of conflict occurred; the secondary sampling path indicates what verification method the system used; the secondary verification data indicates the source of the verification result; the reconstructed credibility level indicates why the system generated a credible wiring result, a wiring result pending verification, or a conflicting wiring result; and the frozen object indicates whether the system froze the physical layer wiring status, the service layer occupancy status, the jumper identifier binding status, or the shadow wiring relationship. After the wiring evidence chain record is sent to the network operation and maintenance platform, maintenance personnel can directly view the source of the anomaly and handling suggestions. This record can also be used for subsequent adjustments to the conflict sampling strategy table, optimization of the double-ended plug-in time window, and tracking of historical wiring events.

[0020] An intelligent management system for fiber optic communication wiring includes: a formal wiring resource module for storing formal wiring resource models; a shadow wiring cache module for storing shadow wiring relationships not written into the formal wiring resource model; a conflict sampling strategy module for storing secondary sampling paths corresponding to different evidence conflict types; an initial evidence generation module for generating an initial wiring evidence set based on port status data, jumper end identification data, optical link quality data, and service resource constraint data; a conflict determination module for generating identification evidence, link evidence, time evidence, and resource evidence based on the initial wiring evidence set, and generating evidence conflict types when the evidence is inconsistent; a secondary sampling module for querying secondary sampling paths based on evidence conflict types and collecting secondary verification data according to the corresponding secondary sampling paths; a trustworthy reconstruction module for reconstructing the trustworthiness level of each piece of evidence based on the secondary verification data, and generating trustworthy wiring results, wiring results to be reviewed, or conflict wiring results; and a write-freeze module for writing shadow wiring relationships into the formal wiring resource model after generating trustworthy wiring results, and prohibiting shadow wiring relationships from being written into the formal wiring resource model after generating wiring results to be reviewed or conflict wiring results.

[0021] Further solution: The secondary sampling module includes a time window reconstruction unit; the time window reconstruction unit is used to expand or shrink the double-ended insertion time window according to the historical double-ended insertion time distribution when the evidence conflict type is time drift conflict type, and output the regenerated time evidence.

[0022] Further solution: The secondary sampling module includes a resource layer freezing unit; this unit is used to split the shadow wiring relationship into physical layer connection relationship and business layer occupancy relationship when the evidence conflict type is a resource constraint conflict type, and to prevent the business layer occupancy relationship from entering the business layer occupancy state. The write freezing module includes a formal write unit, a physical layer freezing unit, a business layer freezing unit, and an identifier binding freezing unit; the formal write unit is used to write the shadow wiring relationship into the formal wiring resource model after generating the trusted wiring result; the physical layer freezing unit is used to freeze the physical layer wiring state; the business layer freezing unit is used to freeze the business layer occupancy state; and the identifier binding freezing unit is used to freeze the jumper identifier binding state.

[0023] The beneficial effects of this invention are: This invention establishes a formal cabling resource model, a shadow cabling buffer, and a conflict sampling strategy table through a modeling step, ensuring that confirmed cabling resource states and unconfirmed shadow cabling relationships are stored separately. After a change in the plug-in status of a fiber optic cabling port, the initial sampling step collects port status data, patch cord identification data, optical link quality data, and service resource constraint data, generating an initial cabling evidence set. The temporary storage step establishes shadow cabling relationships based on this initial evidence set. Because shadow cabling relationships are first entered into the shadow cabling buffer, rather than being directly written into the formal cabling resource model, even if there are misreadings of identifications, link fluctuations, or inconsistencies in service resource records during the initial sampling phase, the formal cabling resource model will not be immediately contaminated.

[0024] In the conflict resolution process, identification evidence, link evidence, time evidence, and resource evidence are generated based on the initial wiring evidence set. When the evidence is inconsistent, an evidence conflict type is generated. Identification evidence reflects the correspondence between patch cord end identifiers; link evidence reflects whether changes in optical link quality support the same connection relationship; time evidence reflects whether changes in the plugging status of two ports belong to the same wiring event; and resource evidence reflects whether port combinations and service resources meet the allowed connection relationship. Through parallel judgment of these four types of evidence, the system can distinguish between different situations such as "identifier trusted but link abnormal," "link trusted but identifier abnormal," "plugging time abnormal," and "resource constraint abnormal," rather than simply categorizing all abnormalities as connection failures.

[0025] In the sampling step, the conflict sampling strategy table is queried according to the type of evidence conflict, and secondary verification data is collected according to the corresponding secondary sampling path. This processing method ensures that different conflicts enter different review paths: when the source of the conflict is biased towards the link side, link-related secondary verification data is collected; when the source of the conflict is biased towards the identifier side, identifier-related secondary verification data is collected; when the source of the conflict is biased towards time relationships, review is performed based on time-related data; when the source of the conflict is biased towards business resources, processing is performed according to the resource level. This improves the targeting of secondary sampling and avoids the problems of low judgment efficiency and inaccurate review results caused by using the same retesting method for all anomalies.

[0026] In the reconstruction step, the credibility level of each piece of evidence is reconstructed based on the secondary verification data, generating credible wiring results, wiring results pending review, or conflict wiring results. This process ensures that the final processing result is not directly determined by a single collected value, but rather by the initial wiring evidence set and the secondary verification data. If the secondary verification data supports that each piece of evidence has reached a credible state, a credible wiring result is generated; if there is still insufficient evidence but the conflict freeze condition is not met, a wiring result pending review is generated; if the secondary verification data indicates a high-risk conflict, a conflict wiring result is generated. This improves the reliability of wiring relationship confirmation and reduces false confirmations caused by short-term sampling fluctuations.

[0027] In the handling process, after generating a reliable wiring result, the shadow wiring relationship is written into the formal wiring resource model. After generating a wiring result to be reviewed or a conflicting wiring result, the writing of the shadow wiring relationship into the formal wiring resource model is prohibited, and the corresponding physical layer wiring status, service layer occupancy status, or jumper identifier binding status is frozen according to the evidence conflict type. This handling method can limit different risks to their corresponding levels: freezing the physical layer wiring status prevents unreliable optical links from being identified as valid connections; freezing the service layer occupancy status prevents connections that do not meet service resource constraints from occupying service resources; and freezing the jumper identifier binding status prevents incorrect binding caused by misreading or crosstalk of identifiers. Therefore, this invention can reduce the probability of incorrect updates to the formal wiring resource model while maintaining the traceability of field wiring changes, thereby improving the accuracy, traceability, and operational security of fiber optic communication wiring management. Attached Figure Description

[0028] Figure 1 This is a schematic flowchart of the method steps of the present invention.

[0029] Figure 2 This is a schematic block diagram of the system structure of the present invention. Detailed Implementation

[0030] The technical solutions in the embodiments of the present invention will now be clearly and completely described in conjunction with the accompanying drawings.

[0031] like Figure 1 As shown, the intelligent management method for fiber optic communication cabling provided in this embodiment processes multi-source data generated after changes in the plug-in status of fiber optic cabling ports. Instead of immediately modifying the formal cabling resource model after reading the jumper end identification data, this method first generates an initial cabling evidence set, then establishes shadow cabling relationships, and subsequently determines whether there are evidence conflict types by judging the consistency among identification evidence, link evidence, time evidence, and resource evidence. If a conflict occurs, the method further selects the corresponding secondary sampling path based on the evidence conflict type, reconstructs the credibility level of each piece of evidence based on the secondary verification data, and finally decides whether to write the shadow cabling relationship into the formal cabling resource model, or freeze the corresponding physical layer cabling status, service layer occupancy status, or jumper identification binding status.

[0032] In the S101 modeling step, a formal cabling resource model, a shadow cabling buffer, and a conflict sampling strategy table are established. The formal cabling resource model stores confirmed valid port resource records, patch cord resource records, device resource records, service resource records, and allowed connection relationship records. Port resource records include at least the fiber optic patch cord port number, its associated device number, port occupancy status, and the service resource identifier corresponding to the port. Patch cord resource records include at least the patch cord number, the first patch cord end identifier, the second patch cord end identifier, and the patch cord availability status. Allowed connection relationship records define which fiber optic patch cord ports can establish connections; for example, a first device-side port can be connected to a second device-side port, or a trunk fiber optic cable-side port can be connected to a service access-side port. The shadow cabling buffer temporarily stores unconfirmed shadow cabling relationships. Shadow cabling relationships can be understood as "connections that may have already occurred on-site," but they cannot overwrite the formal cabling resource model before a reliable cabling result is generated. The conflict sampling strategy table is used to store the correspondence between evidence conflict types and secondary sampling paths, so that subsequent conflict handling does not rely on manual selection, but is automatically executed according to preset rules.

[0033] For ease of implementation, the formal cabling resource model and the shadow cabling cache can be stored on the same database server, or separately on the network operation and maintenance platform and edge acquisition devices. It is recommended that the formal cabling resource model use a persistent data table, while the shadow cabling cache should use a cached data table with a valid timestamp. If a shadow cabling relationship is not converted into a trusted cabling result, a cabling result pending review, or a conflicting cabling result within a preset valid time period, the corresponding shadow cabling relationship should be deleted, and the system should wait for the next connection status change.

[0034] In the S102 initial data collection step, after a change in the connection status of the fiber optic distribution port, port status data, jumper end identification data, optical link quality data, and service resource constraint data are collected to generate an initial distribution evidence set. Port status data includes at least the fiber optic distribution port number, insertion or removal status, and status change time. Port status data can be generated by a port presence detection switch, optical interruption detection element, conductive contact detection circuit, or Hall effect detection element. Jumper end identification data includes at least the jumper number, jumper end number, and identification reading time. Jumper end identification data can be obtained through electronic tags, near-field communication tags, barcodes, QR codes, or end-encoded resistors. Optical link quality data includes at least two of the following: optical power, reflection loss, link connectivity status, and bit error rate status. Service resource constraint data comes from service resource records and allowed connection relationship records in the formal distribution resource model and is used to determine whether the current port combination is allowed to carry the target service resource.

[0035] The initial data acquisition step can be executed using an event-triggered method. When any fiber optic distribution port changes from an uninserted state to an inserted state, or from an inserted state to an uninserted state, the port status acquisition module generates port status data. The system opens a single time window, such as five seconds, ten seconds, or thirty seconds, centered on the time of the status change in the port status data. Within this single time window, the system reads the corresponding patch cord identification data and acquires optical link quality data. The system combines the port status data, patch cord identification data, optical link quality data, and service resource constraint data falling within the same time window into an initial distribution evidence set. The initial distribution evidence set includes at least one fiber optic distribution port's data; when two patch cord ends of the same patch cord change their insertion status within the same or related time window, the initial distribution evidence set includes data corresponding to both fiber optic distribution ports.

[0036] When collecting optical link quality data, it is recommended to record the measurements before and after the change in connection status. For example, the change in optical power can be calculated using the following formula: In the formula, the change in optical power is... This represents the difference in optical power before and after a change in the plugging status of a fiber optic distribution port; the target optical power. This represents the optical power acquired after the connection status change, and the reference optical power. This represents the optical power acquired before the change in connection status. If the change in optical power... A value greater than the preset access change threshold indicates that the plugging action may have had a significant impact on the optical link. The preset access change threshold can be set based on the optical module's receiver sensitivity, link length, and optical attenuation budget; for example, it can be set to any value between 0.5dB and 3dB.

[0037] In the S103 temporary storage step, a shadow wiring relationship is established based on the initial wiring evidence set. If there are two jumper end identifiers in the initial wiring evidence set, and the two jumper end identifiers belong to the same jumper, then the two fiber optic wiring ports corresponding to the two jumper ends are established as a shadow wiring relationship. The shadow wiring relationship includes at least the first fiber optic wiring port, the second fiber optic wiring port, the jumper number, the first jumper end identifier, the second jumper end identifier, the establishment time, and the source evidence identifier. After the shadow wiring relationship is written to the shadow wiring buffer, the port occupancy status and service layer occupancy status in the formal wiring resource model are not immediately changed. This avoids erroneous writing caused by tag misreading, port crosstalk, short-term jitter of optical links, or service resource constraint conflicts.

[0038] In the S104 conflict step, identification evidence, link evidence, time evidence, and resource evidence are generated based on the initial wiring evidence set, and an evidence conflict type is generated when the evidence is inconsistent. Identification evidence indicates whether the identifiers at the ends of two patch cords belong to the same patch cord. Link evidence indicates whether the changes in optical link quality corresponding to two fiber optic patch ports conform to the same link connection relationship. Time evidence indicates whether the time difference between the state changes of two fiber optic patch ports falls within the double-ended plugging time window. Resource evidence indicates whether two fiber optic patch ports satisfy the allowed connection relationship record and service resource record.

[0039] To facilitate machine implementation, the four types of evidence can be converted into pass or fail states. A pass status for identification evidence indicates that the two patch cord end identifiers belong to the same patch cord; a pass status for link evidence indicates that the directions of optical power change, reflection loss change, link connectivity change, and bit error rate change at the two fiber optic distribution ports meet the preset criteria for determining the same link; a pass status for time evidence indicates that the time difference between the state changes of the two fiber optic distribution ports falls within the double-ended plugging time window; and a pass status for resource evidence indicates that the two fiber optic distribution ports satisfy the allowed connection relationship record and service resource record. When any piece of evidence contradicts another piece of evidence, a corresponding evidence conflict type is generated.

[0040] Figure 1 The evidence conflict types listed on the right side of S104 include: Trusted Link Conflict Type, Trusted Link Identifier Conflict Type, Time Drift Conflict Type, and Resource Constraint Conflict Type. A Trusted Link Conflict Type indicates that the identifier evidence shows the two patch cord ends belong to the same patch cord, but the link evidence shows the two fiber optic distribution ports do not form a trusted same link. A Trusted Link Identifier Conflict Type indicates that the link evidence shows the two fiber optic distribution ports form a trusted same link, but the identifier evidence shows the two patch cord ends do not belong to the same patch cord. A Time Drift Conflict Type indicates that the identifier evidence shows the two patch cord ends belong to the same patch cord, but the time difference between the state changes of the two fiber optic distribution ports does not fall within the double-ended plugging time window. A Resource Constraint Conflict Type indicates that both the identifier evidence and the link evidence show the existence of the same connection relationship, but the resource evidence shows the two fiber optic distribution ports do not meet the allowed connection relationship record or service resource record.

[0041] In the S105 sampling step, the conflict sampling strategy table is queried according to the type of evidence conflict, and secondary verification data is collected according to the corresponding secondary sampling path. The conflict sampling strategy table can adopt the data structure shown in Table 1.

[0042]

[0043] The link reverse verification path is suitable for identifying trusted link collision types. In practice, the received optical power change sequence, transmitted optical power change sequence, bit error rate change sequence, and link heartbeat response sequence are collected from the optical modules at both ends of the two fiber optic distribution ports. If the two fiber optic distribution ports do indeed belong to the same link, the transmitted optical power change of one port should be reflected in the received optical power change of the other port, and the bit error rate change sequence and link heartbeat response sequence should also have corresponding change characteristics. The system can determine whether the link reverse verification passes by using the two-end reverse consistency score, which is obtained by the following formula: ; In the formula, the scores for reverse consistency at both ends are... This indicates whether the optical link quality changes corresponding to the two fiber optic distribution ports have a two-way correspondence; power consistency score. This indicates the degree of consistency between the received optical power variation sequence and the transmitted optical power variation sequence; the bit error consistency score. Indicates the degree of consistency between the bit error rate sequences at both ends; heartbeat consistency score. Indicates the degree of consistency between link heartbeat response sequences; connectivity consistency score. This indicates the degree of consistency between the directions of link connectivity changes at both ends. The scores can be normalized to between 0 and 100. When the reverse consistency score C_link reaches a preset link trust threshold, such as 80 points, the reverse verification path outputs a result indicating that the reverse consistency condition is met; otherwise, it outputs a result indicating that the reverse consistency condition is not met.

[0044] The identifier reread verification path is applicable to trusted identifier conflict types in links. In practice, multiple rounds of identifier reading are performed on two fiber optic distribution ports, adjacent ports of the two fiber optic distribution ports, and two jumper ends. For example, each reading location is read three to ten times consecutively, recording the jumper end identifier, reading time, and reading strength in each round. If the reading results of the two fiber optic distribution ports are stable, and the adjacent ports do not read the same jumper end identifier, then the generated identifier stability result meets the stability condition, and the identifier crosstalk result indicates no crosstalk. If the adjacent ports read the same jumper end identifier, or the reading results of the same port change over multiple rounds, then the generated identifier stability result does not meet the stability condition, or the identifier crosstalk result indicates crosstalk exists. The identifier stability rate can be calculated using the following formula: In the formula, the stability rate of the identifier is... This indicates the proportion of times the identifier reading results remain consistent across multiple rounds, representing the number of times the same identifier is read. This indicates the number of times the read result matches the target jumper end identifier; the total number of reads. Indicates the total number of reads. Indicates stability. When the preset stability threshold is reached, for example, 90%, and no target jumper end identifier is read from the adjacent port, the identifier stability result is determined to meet the stability condition and the identifier crosstalk result is determined to be that there is no crosstalk.

[0045] The time window reconstruction path is applicable to time drift conflict types. During execution, the system statistically analyzes the insertion time difference between the two ends of the same patch cord in historical cabling events, generating a historical double-ended insertion time distribution. The system can expand or shrink the double-ended insertion time window based on this historical distribution. For example, if most historical double-ended insertion time differences are concentrated within 20 seconds, the double-ended insertion time window can be set to 25 seconds; if the current data center cabling operation distance is relatively long, and historical double-ended insertion time differences are concentrated within 60 seconds, the double-ended insertion time window can be expanded accordingly. To avoid mismatches due to an excessively large time window, an upper limit can be set, such as not exceeding 120 seconds. The double-ended insertion time window can be obtained using the following formula: In the formula, the double-ended plugging time window This indicates the time range used to determine whether changes in the plugging status of two jumper ends belong to the same wiring event; the historical average time difference. This represents the average time difference between the insertion ends of the two jumper ends in historical wiring events, with a window margin. This represents the time margin used to absorb fluctuations in field operations. Window margin You can take one to two times the standard deviation of the historical time difference, or you can set it directly to five to thirty seconds.

[0046] Resource tiering and path freezing applies to resource constraint conflict types. In practice, shadow cabling relationships are split into physical layer connection relationships and service layer occupancy relationships. Physical layer connection relationships indicate that two fiber optic cabling ports are connected in the field via patch cords; service layer occupancy relationships indicate whether the connection can occupy the corresponding service resources. If both identification evidence and link evidence show that two ports have formed the same connection, but resource evidence shows that the two ports do not meet the requirements for allowed connection relationships or service resource records, the system allows the physical layer connection relationship to enter the physical layer pending confirmation state, while simultaneously prohibiting the service layer occupancy relationship from entering the service layer occupancy state. This avoids directly denying genuine connections in the field and also prevents incorrect service resources from being occupied.

[0047] In the S106 reconstruction step, the credibility level of each piece of evidence is reconstructed based on the secondary verification data, and credible wiring results, wiring results pending verification, or conflict wiring results are generated. Credibility levels can be represented from 0 to 100. The identifier evidence, link evidence, time evidence, and resource evidence generated in the initial sampling step each have an initial credibility level; after the secondary sampling path generates secondary verification data, the credibility level of the corresponding evidence is increased or decreased. The reconstructed credibility level can be calculated using the following formula: ; In the formula, the reconstructed trust level This indicates the credibility level of a piece of evidence after secondary verification and data correction; the initial credibility level. This indicates the credibility level of the evidence in the initial wiring evidence set stage, and the verification adjustment value. This indicates the gain or penalty of the secondary verification data on the evidence. If the output of the link reverse verification path satisfies the bilateral reverse consistency condition, the verification adjustment value of the link evidence can be adjusted. Set to a positive value, for example, add 10 to 20 points; if the output of the link reverse verification path does not meet the condition of mutual reverse consistency, the verification adjustment value of the link evidence or identifier evidence can be adjusted. Set to a negative value, for example, subtract 20 points to 40 points. If the identifier reread verification path outputs an identifier crosstalk result indicating crosstalk exists, the verification adjustment value of the identifier evidence can be adjusted. Set to a large negative value and trigger the freeze of the fiber jumper identifier binding status.

[0048] The system generates a trusted wiring result when the reconstructed trust levels of identifier evidence, link evidence, time evidence, and resource evidence all meet the trust threshold. If the reconstructed trust level of any evidence does not meet the trust threshold, and no freeze trigger condition exists, the system generates a wiring result pending review. The system generates a conflict wiring result when a freeze trigger condition exists. Freeze trigger conditions may include: identifier reread verification path resulting in identifier crosstalk; link reverse verification path resulting in failure to meet the reverse consistency condition at both ends; resource layer freeze path resulting in failure to meet the allowed connection relationship record or business resource record in the business layer occupancy relationship; and time window reconstruction path resulting in two consecutive failures to meet the time window for double-ended insertion.

[0049] In step S107, after generating the trusted wiring result, the shadow wiring relationship is written into the formal wiring resource model. During the writing process, the port occupancy status of the two fiber optic wiring ports is updated to "occupied," the patch cord connection relationship is updated to "connected between the two fiber optic wiring ports," the service link relationship is updated to "the corresponding service resource is accessed," and optical link quality data is written to the corresponding optical link quality status. After the writing is complete, the corresponding shadow wiring relationship in the shadow wiring cache can be deleted or saved as historical data.

[0050] After generating wiring results to be reviewed or conflicting wiring results, shadow wiring relationships are prohibited from being written into the formal wiring resource model, and the corresponding states are frozen according to the evidence conflict type. A conflict type indicating a trusted link corresponds to freezing the physical layer wiring state, indicating that the system does not yet recognize that the field connection has formed a reliable physical layer connection, and link reverse verification needs to continue. A conflict type indicating a trusted link identifier corresponds to freezing the jumper identifier binding state, indicating that the link behavior may be correct, but the jumper end identifier has been misread, incorrectly bound, or subject to crosstalk, and identifier reread verification needs to continue. A conflict type indicating a time drift corresponds to freezing shadow wiring relationships, indicating that the insertion time difference between the two jumper ends is unstable, and time window reconstruction needs to continue. A conflict type indicating a resource constraint corresponds to freezing the service layer occupancy state, indicating that a physical connection may exist in the field, but this physical connection is not allowed to directly occupy the target service resource.

[0051] Table 2 provides an example of the correspondence between trust level reconstruction and handling results. This table is only an implementation example; specific thresholds can be adjusted according to communication stations, data centers, or optical distribution boxes.

[0052]

[0053] Depend on Figure 1 As can be seen, this implementation divides the processing of a single plug-in event into several consecutive stages: initial sampling, temporary storage, conflict determination, secondary sampling, trust level reconstruction, and handling. These consecutive stages prevent the system from directly modifying the formal wiring resource model based on a single valid piece of evidence, or from directly rejecting a field connection due to a single abnormal piece of evidence. Instead, it selects different secondary sampling paths based on different types of evidence conflicts. This reduces wiring management errors caused by misreading electronic tags, crosstalk between adjacent ports, short-term fluctuations in optical links, misconfiguration of time windows, and misoccupation of service resources.

[0054] like Figure 2 As shown, this embodiment also provides an intelligent management system for optical fiber communication wiring. The system includes a formal wiring resource module, a shadow wiring cache module, a conflict sampling strategy module, an initial evidence generation module, a conflict determination module, a secondary sampling module, a trusted reconstruction module, and a write-freeze module. After receiving port status data, jumper end identification data, optical link quality data, and service resource constraint data, the system first generates an initial wiring evidence set by the initial evidence generation module, and then interacts with the shadow wiring cache module to generate shadow wiring relationships. The shadow wiring relationships are stored in the shadow wiring cache module before a trusted wiring result is generated.

[0055] The formal wiring resource module stores the formal wiring resource model. This model forms the basis for the system-verified resource status. The formal wiring resource module does not directly receive unverified field connection data; instead, the write-freeze module performs the formal write operation after generating trusted wiring results. A data correspondence exists between the formal wiring resource module and the shadow wiring cache module, but they store different data states. The shadow wiring cache module stores shadow wiring relationships awaiting verification, while the formal wiring resource module stores confirmed formal connection relationships. This structure prevents momentary misreads from field acquisition devices from directly contaminating the formal wiring resource model.

[0056] The shadow wiring cache module stores shadow wiring relationships that have not yet been written into the formal wiring resource model. For each shadow wiring relationship, the module can set its establishment time, source evidence identifier, current processing status, and validity period. The current processing status can include waiting for conflict determination, waiting for secondary sampling, waiting for trust level reconstruction, pending review, and conflict status. After receiving the initial wiring evidence set output by the initial evidence generation module, the shadow wiring cache module generates shadow wiring relationships based on the identifiers of the two patch cord ends belonging to the same patch cord and the two fiber optic wiring ports. The shadow wiring cache module also receives control signals from the write-to-freeze module. When a trusted wiring result is generated, the shadow wiring cache module provides the corresponding shadow wiring relationship to the write-to-freeze module; when a wiring result pending review or a conflict wiring result is generated, the shadow wiring cache module keeps the corresponding shadow wiring relationship from being written into the formal wiring resource model.

[0057] The conflict sampling strategy module stores secondary sampling paths corresponding to different evidence conflict types. This module can be a rule table, strategy file, or database table. After receiving the evidence conflict type output by the conflict determination module, the conflict sampling strategy module provides the corresponding secondary sampling path to the secondary sampling module. For example, when the evidence conflict type is a trusted link conflict type, the conflict sampling strategy module outputs a link reverse verification path; when the evidence conflict type is a trusted link identifier conflict type, the conflict sampling strategy module outputs an identifier reread verification path; when the evidence conflict type is a time drift conflict type, the conflict sampling strategy module outputs a time window reconstruction path; and when the evidence conflict type is a resource constraint conflict type, the conflict sampling strategy module outputs a resource layering freeze path.

[0058] The initial evidence generation module generates an initial wiring evidence set based on port status data, patch cord identification data, optical link quality data, and service resource constraint data. Port status data can come from a port presence detection device; patch cord identification data can come from a patch cord identification reader; optical link quality data can come from an optical module, optical power acquisition circuit, or link monitoring device; and service resource constraint data can come from a formal wiring resource module. The initial evidence generation module correlates the above data within the same time window. If the change time of port status data falls within the same time window, the reading time of patch cord identification data also falls within the same time window, and the optical link quality data changes within that time window, then the above data are bound into the same initial wiring evidence set.

[0059] The conflict determination module generates identification evidence, link evidence, time evidence, and resource evidence based on the initial wiring evidence set, and generates an evidence conflict type when the evidence is inconsistent. The conflict determination module operates as follows: first, it determines whether the identifiers at the ends of two patch cords belong to the same patch cord, generating identification evidence; then, it compares the direction of optical link quality changes at the two fiber optic distribution ports, generating link evidence; next, it calculates the time difference of state changes at the two fiber optic distribution ports, generating time evidence; finally, it queries the allowed connection relationship records and service resource records in the formal wiring resource model, generating resource evidence. When all four types of evidence pass, the module can directly proceed to the trust reconstruction module for trust level calculation; when any inconsistency occurs between any pieces of evidence, the conflict determination module generates an evidence conflict type and sends it to the secondary sampling module.

[0060] The secondary sampling module is used to query the secondary sampling path based on the type of evidence conflict and collect secondary verification data according to the corresponding secondary sampling path. For example... Figure 2 As shown, the secondary sampling module includes a link reverse verification unit, an identifier reread verification unit, a time window reconstruction unit, and a resource layering freeze unit. After receiving the identifier trusted link conflict type, the link reverse verification unit collects the received optical power change sequence, transmitted optical power change sequence, bit error rate change sequence, and link heartbeat response sequence for the optical modules at both ends of the two fiber optic distribution ports, and outputs a two-end reverse consistency result. After receiving the link trusted identifier conflict type, the identifier reread verification unit performs multiple rounds of identifier reading for the two fiber optic distribution ports, adjacent ports of the two fiber optic distribution ports, and the two jumper ends, and outputs the identifier stability result and identifier crosstalk result. After receiving the time drift conflict type, the time window reconstruction unit expands or contracts the two-end plugging time window according to the historical two-end plugging time distribution and outputs the regenerated time evidence. After receiving the resource constraint conflict type, the resource layering freeze unit splits the shadow wiring relationship into physical layer connection relationship and service layer occupancy relationship, and determines whether it is necessary to prohibit the service layer occupancy relationship from entering the service layer occupancy state.

[0061] The Trust Reconstruction module is used to reconstruct the trust level of each piece of evidence based on secondary verification data, and generate trusted wiring results, wiring results pending review, or conflicting wiring results. See also... Figure 2 The trusted reconstruction module includes a trusted level adjustment unit and a result generation unit. The trusted level adjustment unit increases or decreases the trusted level of identifier evidence, link evidence, time evidence, and resource evidence based on secondary verification data. The result generation unit generates trusted wiring results, wiring results pending review, or conflict wiring results based on the adjusted trusted levels. To make the result generation process clearer, the following judgment rules can be adopted: a trusted wiring result is generated when the reconstructed trusted levels of all four types of evidence reach the trusted threshold; a wiring result pending review is generated when at least one type of evidence does not reach the trusted threshold but there is no freeze trigger condition; a conflict wiring result is generated when identifier crosstalk, failure to meet the reverse consistency condition at both ends, failure to meet the allowed connection relationship record or business resource record in the business layer occupancy relationship, or failure to meet any of the conditions in the two-way insertion time window twice consecutively occur.

[0062] The write-freeze module is used to perform write or freeze operations based on trusted wiring results, wiring results pending verification, or conflicting wiring results. For example... Figure 2 As shown, the write-freeze module includes a formal write unit, a physical layer freeze unit, a service layer freeze unit, and an identifier binding freeze unit. The formal write unit writes the shadow wiring relationship into the formal wiring resource model after generating the trusted wiring result. The physical layer freeze unit freezes the physical layer wiring state when the evidence conflict type is an identifier trusted link conflict type and the link reverse verification fails. The service layer freeze unit freezes the service layer occupancy state when the evidence conflict type is a resource constraint conflict type. The identifier binding freeze unit freezes the fiber jumper identifier binding state when the evidence conflict type is a link trusted identifier conflict type and the identifier reread verification fails.

[0063] pass Figure 2 In the system architecture shown, port status data, patch cord end identification data, optical link quality data, and service resource constraint data no longer directly determine the modification of the formal cabling resource model. Instead, they first enter the initial evidence generation module, then pass through the conflict determination module, secondary sampling module, and trusted reconstruction module, before being written or frozen by the write-freeze module. This module link ensures that each data object has a clear source and processing destination. Port status data is used to trigger the generation of the initial cabling evidence set; patch cord end identification data is used to generate identification evidence; optical link quality data is used to generate link evidence and secondary verification data; and service resource constraint data is used to generate resource evidence. Evidence conflict type is used to select the secondary sampling path; secondary verification data is used to reconstruct the trusted level; trusted cabling results are used for formal writing; and cabling results pending review and conflicting cabling results are used to freeze the corresponding states.

[0064] This implementation can be deployed in communication stations, data centers, optical distribution boxes, fiber optic distribution frames, or fiber broadband operation service platforms. During deployment, the port status acquisition device, jumper end identification reading device, and optical link quality acquisition device can be located near the fiber optic distribution port, or the data can be jointly provided by the optical module and the network operation and maintenance platform. The formal distribution resource module, shadow distribution cache module, conflict sampling strategy module, initial evidence generation module, conflict determination module, secondary sampling module, trusted reconstruction module, and write-freeze module can be deployed on the same server, or between edge acquisition devices and the network operation and maintenance platform. As long as the modules can transmit port status data, jumper end identification data, optical link quality data, service resource constraint data, initial distribution evidence set, evidence conflict type, secondary verification data, and trust level, the implementation can be achieved. Figure 2 The system shown is coordinated.

[0065] The principle behind this embodiment is as follows: In fiber optic communication cabling, various factors can easily lead to erroneous records. For example, port presence detection may be affected by contact jitter, jumper end identifier reading may be affected by crosstalk from adjacent ports, optical link quality data may be affected by instantaneous fluctuations in optical modules, and service resource constraint data may conflict due to delays in network operation and maintenance platform updates. If the system relies on only a single piece of evidence, it is easy to write erroneous connections into the formal cabling resource model. This embodiment identifies the source of conflict by determining conflicts among identifier evidence, link evidence, time evidence, and resource evidence. Then, it performs secondary sampling through link reverse verification paths, identifier rereading verification paths, time window reconstruction paths, and resource layering freezing paths, ensuring that each conflict has a corresponding verification method. The secondary verification data further reconstructs the credibility level of each piece of evidence, providing clear data basis for formal writing, pending review, and conflict freezing. This improves the accuracy of the fiber optic cabling resource model and reduces the risk of erroneous service resource occupation and misjudgment of link connection status.

Claims

1. A method and system for intelligent management of fiber optic communication wiring, characterized in that, Includes the following steps: Modeling steps: Establish a formal wiring resource model, a shadow wiring buffer, and a conflict sampling strategy table; Initial data collection steps: After a change in the plugging status of the fiber optic distribution port, collect port status data, jumper end identification data, optical link quality data, and service resource constraint data to generate an initial distribution evidence set; Temporary storage step: Establish shadow wiring relationships based on the initial wiring evidence set; Conflict step: Generate identifier evidence, link evidence, time evidence, and resource evidence based on the initial wiring evidence set, and generate evidence conflict type when the evidence is inconsistent; Sampling steps: Query the conflict sampling strategy table according to the evidence conflict type, and collect secondary verification data according to the corresponding secondary sampling path; Reconstruction steps: Reconstruct the credibility level of each piece of evidence based on the secondary verification data, and generate credible wiring results, wiring results to be reviewed, or conflict wiring results; Handling steps: After generating the trusted wiring result, write the shadow wiring relationship into the formal wiring resource model; after generating the wiring result to be reviewed or the conflict wiring result, prohibit the shadow wiring relationship from being written into the formal wiring resource model, and freeze the corresponding physical layer wiring status, service layer occupancy status or fiber jumper identifier binding status according to the evidence conflict type.

2. The intelligent management method and system for optical fiber communication wiring according to claim 1, characterized in that, In the modeling step: the formal cabling resource model includes port resource records, jumper resource records, device resource records, service resource records, and allowed connection relationship records; the shadow cabling cache is used to store shadow cabling relationships that are not written into the formal cabling resource model; the conflict sampling strategy table is used to record secondary sampling paths corresponding to different evidence conflict types; In the conflict resolution process: the identification evidence is generated by whether the two patch cord ends belong to the same patch cord; the link evidence is generated by at least two of the following: the direction of optical power change, the direction of reflection loss change, the direction of link connectivity change, and the direction of bit error change before and after the two fiber optic distribution ports change their connection status; the time evidence is generated by whether the time difference between the status changes of the two fiber optic distribution ports falls within the double-ended connection time window; and the resource evidence is generated by whether the two fiber optic distribution ports meet the requirements of the allowed connection relationship record and the service resource record.

3. The intelligent management method and system for optical fiber communication wiring according to claim 2, characterized in that, The types of evidence conflicts include trusted link conflict type, trusted link identifier conflict type, time drift conflict type, and resource constraint conflict type; The identification trusted link conflict type is generated when the identification evidence satisfies the same fiber jumper determination condition and the link evidence does not satisfy the same link determination condition; The link trust identifier conflict type is generated when the link evidence satisfies the same link determination condition and the identifier evidence does not satisfy the same fiber jumper determination condition; The time drift conflict type is generated when the identification evidence meets the same fiber jumper determination condition and the time evidence does not meet the double-ended plugging time window. The resource constraint conflict type is generated when the identification evidence and the link evidence satisfy the same connection determination condition, and the resource evidence does not satisfy the allowed connection relationship record or business resource record.

4. The intelligent management method and system for optical fiber communication wiring according to claim 3, characterized in that, In the sampling step: the secondary sampling path includes a link reverse verification path, an identifier reread verification path, a time window reconstruction path, and a resource layering freeze path; the identifier trusted link conflict type corresponds to the link reverse verification path; the link trusted identifier conflict type corresponds to the identifier reread verification path; the time drift conflict type corresponds to the time window reconstruction path; and the resource constraint conflict type corresponds to the resource layering freeze path.

5. The intelligent management method and system for optical fiber communication wiring according to claim 4, characterized in that, The link reverse verification path includes: collecting the received optical power change sequence, transmitted optical power change sequence, bit error rate change sequence, and link heartbeat response sequence from the optical modules at both ends corresponding to the two fiber optic distribution ports; determining whether the two fiber optic distribution ports meet the two-end reverse consistency condition based on the received optical power change sequence, the transmitted optical power change sequence, the bit error rate change sequence, and the link heartbeat response sequence; increasing the credibility level of the link evidence when the two-end reverse consistency condition is met; decreasing the credibility level of the identification evidence when the two-end reverse consistency condition is not met, and generating a wiring result to be verified. The identifier reread verification path includes: performing multiple rounds of identifier reading on two fiber optic distribution ports, adjacent ports of the two fiber optic distribution ports, and two jumper ends; generating identifier stability results and identifier crosstalk results based on the results of the multiple rounds of identifier reading; increasing the credibility level of the identifier evidence when the identifier stability result meets the stability condition and the identifier crosstalk result indicates no crosstalk; freezing the jumper identifier binding state and generating conflict wiring results when the identifier stability result does not meet the stability condition or the identifier crosstalk result indicates crosstalk exists.

6. The intelligent management method and system for optical fiber communication wiring according to claim 5, characterized in that, The time window reconstruction path includes: statistically analyzing the insertion time difference between the two ends of the same jumper in historical wiring events to generate a historical double-ended insertion time distribution; expanding or shrinking the double-ended insertion time window based on the historical double-ended insertion time distribution; regenerating the time evidence using the expanded or shrunken double-ended insertion time window; increasing the credibility level of the time evidence when the regenerated time evidence meets the double-ended insertion time window requirements; and generating wiring results to be reviewed when the regenerated time evidence still does not meet the double-ended insertion time window requirements. The resource layer freezing path includes: splitting the shadow wiring relationship into physical layer connection relationship and service layer occupancy relationship; allowing the physical layer connection relationship to enter the physical layer pending confirmation state when the identification evidence and the link evidence meet the same connection determination condition; and prohibiting the service layer occupancy relationship from entering the service layer occupancy state when the resource evidence does not meet the allowed connection relationship record or service resource record.

7. The intelligent management method and system for optical fiber communication wiring according to claim 6, characterized in that, The reconstruction steps include: setting initial trust levels for the identification evidence, the link evidence, the time evidence, and the resource evidence respectively; increasing or decreasing the initial trust level of the corresponding evidence based on the secondary verification data to obtain the reconstructed trust level; generating a trusted wiring result when the reconstructed trust levels of the identification evidence, the link evidence, the time evidence, and the resource evidence all meet the trust threshold; generating a wiring result to be reviewed when the reconstructed trust level of any evidence does not meet the trust threshold and there is no freeze trigger condition; and generating a conflict wiring result when there is a freeze trigger condition. The freezing trigger conditions include: the identifier reread verification path obtaining an identifier crosstalk result; or, the link reverse verification path obtaining a result where the two-end reverse consistency condition is not met; or, the resource layer freezing path obtaining a result where the service layer occupancy relationship does not meet the allowed connection relationship record or service resource record; or, the time window reconstruction path obtaining a result where the two-end insertion time window is not met twice consecutively.

8. The intelligent management method and system for optical fiber communication wiring according to claim 7, characterized in that, In the processing steps: when the evidence conflict type is the trusted link conflict type, the physical layer wiring state is frozen and the link reverse verification failure information is output; when the evidence conflict type is the trusted link identifier conflict type, the jumper identifier binding state is frozen and the identifier reread verification failure information is output; when the evidence conflict type is the time drift conflict type, the shadow wiring relationship is frozen and the time window reconstruction failure information is output; when the evidence conflict type is the resource constraint conflict type, the service layer occupancy state is frozen and the service resource constraint failure information is output. The following steps are included prior to the aforementioned treatment steps: Stability verification step: After generating the trusted wiring result, the optical link quality data corresponding to the two fiber optic wiring ports are continuously sampled; when the continuously sampled optical power, reflection loss, bit error rate, and link connectivity all meet the stability verification conditions, the write operation in the processing step is executed; when the continuously sampled optical power, reflection loss, bit error rate, or link connectivity does not meet the stability verification conditions, the trusted wiring result is downgraded to a wiring result to be reviewed. The output steps include: writing the evidence conflict type, the secondary sampling path, the secondary verification data, the reconstructed trust level, and the frozen object into the wiring evidence chain record; and sending the wiring evidence chain record to the network operation and maintenance platform.

9. An intelligent management system for fiber optic communication wiring, characterized in that, include: The formal wiring resource module is used to store the formal wiring resource model; The shadow wiring cache module is used to store shadow wiring relationships that have not been written into the formal wiring resource model; The conflict sampling strategy module is used to store secondary sampling paths corresponding to different types of evidence conflicts; The initial evidence generation module is used to generate an initial wiring evidence set based on port status data, jumper end identification data, optical link quality data, and service resource constraint data. The conflict determination module is used to generate identification evidence, link evidence, time evidence and resource evidence based on the initial wiring evidence set, and to generate evidence conflict type when the evidence is inconsistent. The secondary sampling module is used to query the secondary sampling path according to the evidence conflict type and collect secondary verification data according to the corresponding secondary sampling path; The trusted reconstruction module is used to reconstruct the trust level of each piece of evidence based on the secondary verification data, and generate trusted wiring results, wiring results to be reviewed, or conflict wiring results. The write-freeze module is used to write the shadow wiring relationship into the formal wiring resource model after generating the trusted wiring result, and to prevent the shadow wiring relationship from being written into the formal wiring resource model after generating the wiring result to be reviewed or the conflict wiring result.

10. The intelligent management system for fiber optic communication wiring according to claim 9, characterized in that, The secondary sampling module includes a link reverse verification unit; the link reverse verification unit is used to collect the received optical power change sequence, transmitted optical power change sequence, bit error change sequence and link heartbeat response sequence of the two optical modules corresponding to the two optical fiber distribution ports respectively when the evidence conflict type is the identified trusted link conflict type, and output the two-end reverse consistency result. The secondary sampling module includes an identifier rereading verification unit; the identifier rereading verification unit is used to perform multiple rounds of identifier reading on two fiber optic distribution ports, two adjacent fiber optic distribution ports, and two jumper ends when the evidence conflict type is a link trusted identifier conflict type, and output the identifier stability result and the identifier crosstalk result.

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