A communication infrastructure whole life cycle management system based on digital twinning

Abstract

The application belongs to the technical field of communication network operation and maintenance and infrastructure management, and discloses a communication infrastructure full life cycle management system based on digital twinning, which is applied to a communication network including a core network, a bearer network and an access network. The system is provided with a communication infrastructure object library, a life cycle event management and fingerprint generation device, a digital twinning management device and a fingerprint consistency comparison and trajectory reconstruction device on the center side, and is provided with a report message processing device on the edge node. By collecting design, construction and operation phase events according to infrastructure sections, fixed length life cycle fingerprints are generated and reported with state messages, fingerprint comparison and necessary life cycle trajectory reconstruction are carried out in the digital twinning model, high-risk infrastructure sections are marked in combination with event statistical results and topological relationship, and maintenance strategies are generated, so that the full life cycle fine management of the communication infrastructure is realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of communication network operation and infrastructure management, and specifically relates to a communication infrastructure full life cycle management system based on digital twinning. BACKGROUND

[0002] In the existing communication network, the number of core network, bearer network and access network infrastructure is huge, involving site, pipeline, pole line, machine room and various transmission equipment. A large amount of data formed in the process of engineering construction and operation and maintenance is stored in different business systems: site selection, line scheme, device configuration and other information are usually recorded in the survey and design system, material batch, key process quality inspection, concealed engineering image and completion acceptance conclusion are saved in the construction management system, and daily maintenance work order, fault repair, service cut, expansion and reconstruction and retirement operation record are scattered in the operation and maintenance and network management system. These systems are mainly organized by project number or work order number as the primary key, and lack of through life cycle view object with specific infrastructure section.

[0003] In the operation and maintenance level, the existing network management platform mainly reflects the current state of the network through alarm messages and performance messages. The messages generally only carry device identification, alarm code and a small amount of performance indicators, and cannot directly associate the historical information of changes, concealed engineering treatment and material replacement of the device or line in the planning, construction and previous operation stage. Some units introduce digital twinning technology in the operation and maintenance of communication infrastructure, and visually display the site and line topology, but mostly focus on static structure and real-time alarm presentation. There is a lack of unified coding and association mechanism between life cycle events and digital twinning model, and the infrastructure objects in the reported message and the model also lack stable corresponding relationship. When network failures occur frequently or local structure hidden dangers accumulate, operation and maintenance personnel often need to cross query and manually compare historical records between multiple systems, which is difficult to timely judge the relationship between the problem and the early design, construction quality or material batch, and is not conducive to carrying out risk assessment and maintenance decision-making for the full life cycle of infrastructure. SUMMARY

[0004] The purpose of the present application is to provide a communication infrastructure full life cycle management system based on digital twinning to solve the problems raised in the background.

[0005] In order to achieve the above purpose, the present application provides the following technical scheme: a communication infrastructure full life cycle management system based on digital twinning, applied to a communication network including core network, bearer network and access network. The system is cooperatively deployed at the center side and multiple communication network edge nodes, and the structure state of the communication infrastructure is continuously updated in the digital twinning model by coding the life cycle events and transmitting them with the network management messages.

[0006] A communication infrastructure object library is arranged at the center side, used for assigning unique infrastructure segment identifiers to each physical infrastructure segment, and centrally storing the topological connection relationship data, life cycle event sequence, and life cycle fingerprint coded from the life cycle event sequence of the infrastructure segment. The center side is further provided with a life cycle event management and fingerprint generation device, which reads event records related to each infrastructure segment from a planning and design information system, an engineering construction information system, and an operation and maintenance information system, constructs a life cycle event sequence according to the time sequence of the events, generates a fixed-length life cycle fingerprint according to the life cycle event sequence, writes the life cycle event sequence and the life cycle fingerprint into the communication infrastructure object library, and issues the life cycle fingerprint corresponding to each infrastructure segment identifier to the edge node managing the corresponding infrastructure segment;

[0007] A report message processing device is arranged at the edge node side, which reads the life cycle fingerprint corresponding to the infrastructure segment identifier from the local fingerprint cache when generating a state detection message, an alarm message, or a performance message for a certain infrastructure segment, writes the life cycle fingerprint into the extension field or management service payload field of the message header, and sends the message carrying the fingerprint to the center side through the access network and the bearer network. When the local fingerprint cache does not yet have the life cycle fingerprint of the corresponding infrastructure segment, the report message processing device writes a pre-agreed fingerprint missing identifier in the message, indicating that the message does not carry the life cycle fingerprint corresponding to the target infrastructure segment identifier;

[0008] The center side is further provided with a digital twin management device, which constructs a communication infrastructure digital twin model based on the topological data in the communication infrastructure object library, establishes a one-to-one correspondence between the virtual infrastructure segment and the infrastructure segment identifier in the model, and associates the life cycle fingerprint in the object library as a reference life cycle fingerprint to the corresponding virtual infrastructure segment. The center side is also provided with a fingerprint consistency comparison and trajectory reconstruction device, which extracts the infrastructure segment identifier and the life cycle fingerprint from the report message, looks up the corresponding virtual infrastructure segment in the digital twin model and reads out the reference life cycle fingerprint, and compares the life cycle fingerprint carried by the message with the reference life cycle fingerprint field by field. When the fingerprints are inconsistent, or the message carries the fingerprint missing identifier, the life cycle event sequence of the infrastructure segment is read from the communication infrastructure object library, time-ordered and repeated event-removed to obtain the reconstructed life cycle event sequence, and a new life cycle fingerprint is generated therefrom, and the reconstructed life cycle event sequence and the new life cycle fingerprint are written back to the communication infrastructure object library, and the life cycle information of the corresponding virtual infrastructure segment in the digital twin model is updated;

[0009] The application makes the event information generated by the communication infrastructure in the planning, construction and operation and maintenance stages in the form of a unified life cycle fingerprint attached to the network management message, and corrects and completes the life cycle event record through fingerprint consistency comparison on the center side, so that the infrastructure structure state reflected in the digital twin model is consistent with the actual engineering state, and provides complete and traceable basic data for subsequent operation and maintenance strategy formulation and risk analysis.

[0010] Further, the life cycle event management and fingerprint generation device divides functions according to the design stage, construction stage and operation and maintenance stage, for covering the key event information of the communication infrastructure from the early planning to the long-term operation process;

[0011] Among them, the design stage event acquisition part is connected with the communication survey and design system to read the site selection adjustment, room structure change, line path adjustment and equipment model replacement record, arrange the design adjustment that has completed the approval as a design event, and classify according to the infrastructure section, and write into the life cycle event sequence of the corresponding infrastructure section in turn, so that the change record in the planning and design stage is saved in the life cycle event sequence in a unified format;

[0012] The construction stage event acquisition part is connected with the engineering construction management system to obtain material batch information, key process quality inspection record, concealed engineering image data and completion acceptance conclusion in the construction process, arrange the concealed node closing record and key process acceptance result as a construction event, and write into the life cycle event sequence of the corresponding infrastructure section, to reflect the key process execution and concealed engineering processing in the life cycle event sequence;

[0013] The operation and maintenance stage event acquisition part is connected with the operation and maintenance work order system and the alarm performance management system to read the start time, end time and processing result of the planned maintenance, emergency repair, business cut, expansion and transformation and retirement operation, arrange the work order execution record and alarm closed loop record as an operation and maintenance event, and write into the corresponding life cycle event sequence according to the infrastructure section, so that the operation history in the operation and maintenance process forms a continuous time sequence record;

[0014] Through the above stage-by-stage acquisition and unified arrangement, for each infrastructure section, the key events generated in the design, construction and operation and maintenance stages are included in the same life cycle event sequence, which provides a complete and clear data basis for subsequent generation of life cycle fingerprint and consistency comparison and event reconstruction based on fingerprint on the center side.

[0015] Further, after the life cycle event sequence is constructed for each infrastructure segment, the life cycle event management and fingerprint generation device is further used to encode the life cycle event sequence into a fixed-length life cycle fingerprint, so as to occupy a determined field space when embedding the management packet later, and to be parsed and compared in a unified format at the center side, for this purpose, the device first divides the life cycle event sequence according to the design stage, the construction stage and the operation and maintenance stage, and classifies the events belonging to the same stage into the corresponding stage group, and counts the occurrence times of different event types in each stage group to obtain the event number statistical result of each stage, which is used to represent the distribution of different event types in quantity in each stage;

[0016] After obtaining the event number statistical result of each stage, the life cycle event management and fingerprint generation device generates an event order code according to the time sequence of the events in each stage group, which is used to represent the arrangement relationship of the life cycle events on the time axis, and then splices the event number statistical result of each stage and the event order code according to the pre-agreed field order to form a fixed-length life cycle fingerprint, so that the life cycle fingerprint carries the event number information and the time order information on the field structure at the same time, which is convenient for parsing and comparison by field at the center side;

[0017] In terms of specific encoding form, the life cycle fingerprint includes three parts of event number encoding segment, key procedure encoding segment and abnormal event encoding segment, wherein the event number encoding segment is used to record the number of regular events of each stage, the key procedure encoding segment is used to record the event characteristics related to the key construction procedure, and the abnormal event encoding segment is used to record the number of emergency repair events and the number of unplanned splice events of the corresponding infrastructure segment within a preset statistical time window. Through the above encoding mode, different stages and different types of life cycle events are compressed into structured fingerprint fields, and it is not necessary to directly transmit the complete event list in the packet, so that the event distribution and the abnormal event occurrence can be obtained according to the life cycle fingerprint at the center side, and the corresponding life cycle event sequence can be traced back when the fingerprints are inconsistent, which provides the required data input for fingerprint consistency comparison and event reconstruction.

[0018] Further, the report packet processing device is arranged at each communication network edge node, and is used to associate the life cycle fingerprint with the network management packet at the edge side, which can be divided into an infrastructure segment fingerprint cache, a packet generation unit and a fingerprint missing marking unit, and the units interact with each other through a local bus or an internal message mechanism;

[0019] The infrastructure segment fingerprint cache locally stores the lifecycle fingerprint corresponding to the infrastructure segment identifier managed by the edge node. When the lifecycle event management and fingerprint generation device on the center side updates and issues the lifecycle fingerprint of a certain infrastructure segment, the edge node writes or covers the lifecycle fingerprint of the corresponding infrastructure segment into the infrastructure segment fingerprint cache after receiving the update information, so that the lifecycle fingerprint stored by the edge node is consistent with the lifecycle fingerprint in the communication infrastructure object library on the center side.

[0020] When the message generation unit collects the alarm information, performance sampling result or inspection result related to the target infrastructure segment at the edge node, it generates a state detection message or an alarm message according to the preconfigured message format. In the process of generating the message, the message generation unit reads the lifecycle fingerprint corresponding to the target infrastructure segment identifier from the infrastructure segment fingerprint cache, writes the fingerprint into the extension field or management service payload field of the message header, and then sends the message carrying the lifecycle fingerprint to the center side through the access network and the bearer network. In this way, the center side can obtain the lifecycle fingerprint associated with the message at the same time when receiving the message, reducing the additional query of the historical event information of the edge node.

[0021] When the infrastructure segment fingerprint cache does not yet store the lifecycle fingerprint of a certain target infrastructure segment, the fingerprint missing marking unit writes a pre-agreed fingerprint missing identifier in the message in the message generation process, indicating that the message does not carry the lifecycle fingerprint corresponding to the target infrastructure segment identifier. After identifying the fingerprint missing identifier when analyzing the message, the center side can initiate a synchronization or completion process of the lifecycle event record for the infrastructure segment, avoiding the long-term absence of the lifecycle information corresponding to the infrastructure segment in the digital twin model.

[0022] Through the above setting, the report message processing device enables the lifecycle fingerprint to be transmitted between the edge node and the center side along with the message on the basis of the existing network management message transmission mechanism, and provides clear marking information in the fingerprint missing scenario, providing clear input data source for the center side to subsequently perform fingerprint consistency comparison and lifecycle event reconstruction.

[0023] Further, the fingerprint consistency comparison and trajectory reconstruction device has a pre-set life cycle fingerprint comparison rule, which is used to determine whether the life cycle fingerprint from the edge node is consistent with the reference life cycle fingerprint associated with the digital twin model on the center side. When the digital twin management device analyzes the report message and obtains the infrastructure segment identifier and the life cycle fingerprint carried by the message, the above information is transmitted to the fingerprint consistency comparison and trajectory reconstruction device. The device first searches for a virtual infrastructure segment corresponding to the infrastructure segment identifier in the digital twin model and reads the reference life cycle fingerprint associated with the virtual infrastructure segment as the baseline data for this comparison;

[0024] When performing the comparison, the fingerprint consistency comparison and trajectory reconstruction device compares the life cycle fingerprint carried by the message with the reference life cycle fingerprint field by field according to the pre-agreed field order. When the field values of all fields are the same as the reference life cycle fingerprint and the message does not contain a fingerprint missing identifier, the comparison result is determined to be consistent. When the field value of any field is different from the reference life cycle fingerprint or the fingerprint missing identifier is detected in the message, the comparison result is determined to be inconsistent, and the determination result is used as a trigger condition for performing the life cycle event reconstruction process on the corresponding infrastructure segment in the future.

[0025] By using the field-based comparison rule, the fingerprint consistency comparison and trajectory reconstruction device can complete the consistency determination of the life cycle fingerprint on the center side without expanding the complete life cycle event sequence. When the comparison result is consistent, the existing life cycle record in the communication infrastructure object library and the digital twin model is retained. When the comparison result is inconsistent or the fingerprint is missing, the process of reconstructing the life cycle event sequence by retrieving the events from the communication infrastructure object library is started, so that the fingerprint verification logic and the event reconstruction logic are relatively independent, and a unified and clear processing flow can be used in engineering implementation.

[0026] Further, the system sets a risk assessment and maintenance strategy generation device on the center side, which is in communication connection with the digital twin management device and the fingerprint consistency comparison and trajectory reconstruction device, and is used to assess the structural risk of the communication infrastructure based on the digital twin model and generate a corresponding on-site maintenance strategy.

[0027] Specifically, the risk assessment and maintenance strategy generation device reads the life cycle event sequence associated with each virtual infrastructure segment in the digital twin model within a preset statistical time window, respectively counts the number of emergency repair events, unplanned splicing events and material replacement events involving the same material batch for each virtual infrastructure segment, and compares each statistical result with the pre-set risk threshold for the statistical item. When any statistical result is greater than the corresponding risk threshold, the virtual infrastructure segment is marked as a structurally high-risk virtual infrastructure segment, and the corresponding risk source type is recorded internally.

[0028] After identifying the structurally high-risk virtual infrastructure segment, the risk assessment and maintenance strategy generation device determines other virtual infrastructure segments directly connected to the structurally high-risk virtual infrastructure segment using the topological connection relationship in the digital twin model, forms a risk-associated virtual infrastructure segment set, and generates a corresponding maintenance strategy based on the structurally high-risk virtual infrastructure segment and its risk-associated virtual infrastructure segment set. The maintenance strategy at least includes the infrastructure segment identification that needs to be checked on site and the on-site inspection sequence of each infrastructure segment, which is used to guide the maintenance personnel to prioritize the inspection of the structurally high-risk virtual infrastructure segment and the infrastructure segments directly connected thereto on site.

[0029] Through the above settings, the risk assessment and maintenance strategy generation device combines the repair records, splicing records and material replacement records scattered in the design, construction and operation stages with the topological information in the digital twin model, converts the statistical results into structured risk labels and inspection sequences, so that the center side can determine the key inspection objects and inspection sequences according to unified determination rules, and provide clear data basis for formulating the on-site maintenance plan of the communication infrastructure.

[0030] Further, the digital twin management device is used not only to build and maintain the digital twin model of the communication infrastructure, but also to maintain the mapping relationship between the communication service flow path and the virtual infrastructure segment in the model. Specifically, when modeling the network topology and service bearing relationship, the digital twin management device records the sequence of virtual infrastructure segments that each communication service flow passes through, and stores the service identification and the virtual infrastructure segment sequence in association, forming a corresponding relationship between the service layer and the infrastructure layer in the digital twin model.

[0031] On this basis, after completing the identification of the structural high-risk virtual infrastructure segment, the risk assessment and maintenance strategy generation device queries the communication service flow path passing through the structural high-risk virtual infrastructure segment by using the mapping relationship in the digital twin model. For the service flow involved in the query result, the device marks the service object corresponding to the service flow path as a structural risk service, and extracts the corresponding service identifier and the virtual infrastructure segment identifier involved in the service flow path as the associated information of the structural risk service;

[0032] Subsequently, the risk assessment and maintenance strategy generation device provides the service identifier and the corresponding virtual infrastructure segment identifier to the service scheduling system. The service scheduling system performs service migration operations or bandwidth adjustment operations on the service object marked as a structural risk service according to the preset service priority and the current network resource configuration parameters, such as migrating a key service from a path passing through a structural high-risk virtual infrastructure segment to a backup path, or reallocating the bandwidth of a related link;

[0033] By maintaining the mapping relationship between the communication service flow path and the virtual infrastructure segment in the digital twin model, and linking the service scheduling system after identifying the structural high-risk virtual infrastructure segment, the structural risk at the infrastructure level can be corresponded to the specific service carrying relationship. When the center side performs structural risk assessment, it synchronously obtains the affected service object information, and provides clear data basis for the service scheduling system to implement targeted service migration and network resource adjustment.

[0034] Further, the communication infrastructure object library adopts a segmented coding rule for infrastructure segment identifiers, which is used for unified identification and analysis of the same infrastructure segment between different systems and devices. Specifically, each infrastructure segment identifier is composed of a region coding segment, a line coding segment, and a facility type coding segment. The region coding segment is used to represent the geographical region where the infrastructure is located, the line coding segment is used to represent the transmission line or pipeline section to which the infrastructure belongs, and the facility type coding segment is used to represent different types of infrastructure units such as machine rooms, pipelines, and pole lines. The communication infrastructure object library maintains the primary key identifier of each infrastructure segment and the topological association relationship between infrastructure segments based on this coding rule;

[0035] When generating the report message on the edge side, the report message processing device parses the target infrastructure segment identifier according to the same segmentation coding rule, locates the life cycle fingerprint corresponding to the infrastructure segment identifier in the local fingerprint cache by using the parsing result, and writes the infrastructure segment identifier and the life cycle fingerprint thereof into the related field of the message in a pre-agreed format, and then sends it to the center side through the communication network. When analyzing the report message on the center side, the fingerprint consistency comparison and trajectory reconstruction device also parse and verify the infrastructure segment identifier in the message based on the above segmentation coding rule, and associate the parsed infrastructure segment identifier with the record in the communication infrastructure object library and the virtual infrastructure segment in the digital twin model, so that the messages from different edge nodes can be mapped to a unique virtual infrastructure segment and its corresponding life cycle information.

[0036] By using the segmentation coding infrastructure segment identifier coding rule in the communication infrastructure object library, and uniformly using the coding rule between the report message processing device and the fingerprint consistency comparison and trajectory reconstruction device, the consistency and analyzability of the infrastructure segment identifier format can be maintained within the system, the infrastructure segment matching error caused by identifier analysis difference can be reduced, and the message processing, life cycle fingerprint comparison and digital twin model maintenance can be completed under the same coding system.

[0037] In an embodiment of the present application, based on the foregoing system, a communication infrastructure full life cycle management method based on digital twin is further provided, which is used to form a unified life cycle record in the planning and design, engineering construction and operation and maintenance stages, and continuously correct the infrastructure state in the digital twin model by carrying the life cycle fingerprint through the management message. The method can be executed according to the following process;

[0038] Firstly, for each physical infrastructure segment, the design adjustment record, construction quality inspection record, capacity expansion and reconstruction record, fault repair record and retirement operation record are collected from the communication survey and design system, engineering construction management system and operation and maintenance work order system respectively, the records belonging to the same infrastructure segment are sorted in chronological order, the life cycle event sequence of the infrastructure segment is constructed, and the life cycle event sequence is written into the life cycle event record field in the center side communication infrastructure object library through the life cycle event management and fingerprint generation device, so that the engineering and operation data from different sources are saved in the object library in the form of a unified time sequence.

[0039] After obtaining the lifecycle event sequence, the lifecycle fingerprint is generated according to the event type, the stage to which the event belongs, and the event occurrence time interval in the event sequence. The generated lifecycle fingerprint is associated with the corresponding infrastructure segment identifier, written into the lifecycle fingerprint field in the communication infrastructure object library, and synchronized to the communication network edge node managing the infrastructure segment through the fingerprint issuing interface, so that the central side object library and the edge node local fingerprint cache are kept consistent.

[0040] When the communication network edge node generates a state detection message or an alarm message for a certain target infrastructure segment, the report message processing device reads the lifecycle fingerprint corresponding to the target infrastructure segment identifier from the local fingerprint cache, writes the lifecycle fingerprint into the message header extension field or the management service payload field, and sends the message carrying the lifecycle fingerprint to the center side through the access network and the bearer network. When the corresponding lifecycle fingerprint cannot be obtained from the local fingerprint cache, a pre-agreed fingerprint missing identifier is written into the message, so that the center side can distinguish between fingerprint consistency, fingerprint inconsistency, and fingerprint missing when analyzing the message.

[0041] After receiving the report message at the center side, the message content is analyzed, the infrastructure segment identifier and the lifecycle fingerprint are extracted, the virtual infrastructure segment corresponding to the infrastructure segment identifier is found in the digital twin model, the reference lifecycle fingerprint stored in the virtual infrastructure segment is read, and the lifecycle fingerprint carried by the message and the reference lifecycle fingerprint are compared field by field according to the pre-agreed field order. When all field values are the same and the message does not carry the fingerprint missing identifier, it is determined that the fingerprint comparison result is consistent, and the lifecycle record of the infrastructure segment is not modified. When there is at least one field value different from the reference lifecycle fingerprint, or the message carries the fingerprint missing identifier, it is determined that the fingerprint comparison result is inconsistent, the lifecycle event sequence of the infrastructure segment is called from the communication infrastructure object library, the event sequence is time-ordered and repeated event-removed to obtain the reconstructed lifecycle event sequence, and the lifecycle fingerprint is regenerated based on the reconstructed lifecycle event sequence. Subsequently, the lifecycle event record field and the lifecycle fingerprint field in the communication infrastructure object library are updated, and the lifecycle information of the corresponding virtual infrastructure segment in the digital twin model is updated.

[0042] After the above process is completed, based on the life cycle event sequence in the updated digital twin model and the current collected alarm information and performance indicators, the number of emergency repair events, the number of unplanned splicing events and the number of material replacement events are counted in each virtual infrastructure segment within a preset statistical time window, each statistical result is compared with the pre-set risk threshold, and any virtual infrastructure segment with a statistical result greater than the corresponding risk threshold is marked to form a set of structurally high-risk virtual infrastructure segments, and a maintenance strategy is generated, which at least includes the infrastructure segment identifier corresponding to each virtual infrastructure segment and the key life cycle event information, which provides a basis for subsequent development of on-site inspection plan and maintenance sequence;

[0043] The application completes life cycle event collection, life cycle fingerprint generation and delivery, management message reporting carrying fingerprint, center-side fingerprint comparison and event reconstruction, and structure risk assessment based on event statistics under a unified data model, so that the historical change information of the communication infrastructure and the operation alarm and performance data are integrated in the digital twin model, and traceable process data is provided for subsequent maintenance decision and risk control.

[0044] The beneficial effects of the application are as follows:

[0045] 1、The application collects the key records of the design stage, the construction stage and the operation and maintenance stage by taking the infrastructure segment identifier as the index through the communication infrastructure object library and the life cycle event management and fingerprint generation device, forms a time-ordered life cycle event sequence, and further generates a fixed-length life cycle fingerprint, so that the change, quality inspection and maintenance information of the same infrastructure segment in the planning, construction and operation process are associated and compressed in the unified model, thereby improving the completeness and traceability of the life cycle information, reducing the workload of the operation and maintenance personnel in repeated searching and comparison between multiple systems, and providing a more concentrated data basis for digital twin modeling and fault root cause analysis.

[0046] 2、The application sets the infrastructure segment fingerprint cache and the reporting message processing device on the edge node, writes the life cycle fingerprint of the corresponding infrastructure segment into the message header extension field or the management service field when generating the reporting message, writes the predetermined fingerprint missing identifier when the fingerprint is not obtained, and compares the life cycle fingerprint carried by the message with the reference life cycle fingerprint through the fingerprint consistency comparison and trajectory reconstruction device on the center side, so that the center side can complete the state verification and dynamic correction between the reporting message and the digital twin model without transmitting a large amount of original event details, thereby keeping the infrastructure life cycle trajectory reflected in the model consistent with the actual engineering and operation process.

[0047] 3、The application sets up a risk assessment and maintenance strategy generation device on the center side, based on the life cycle event sequence of each virtual infrastructure segment in the digital twin model, statistically integrates emergency repair, unplanned interface and material replacement involving the same material batch within a preset statistical time window, marks the high-risk virtual infrastructure segment and its risk-related virtual infrastructure segment in combination with the topological connection relationship structure, generates a maintenance strategy containing an on-site inspection sequence, and identifies the structural risk business by using the mapping relationship between the business flow path and the virtual infrastructure segment, through the above configuration, the maintenance work can be focused on the infrastructure segment with high structural risk and its associated business, thereby improving the pertinence of maintenance resource investment and reducing the impact of structural failure on communication business continuity. BRIEF DESCRIPTION OF DRAWINGS

[0048] Fig. 1 The life cycle fingerprint generation and delivery flowchart of the application;

[0049] Fig. 2 The message processing and center-side fingerprint comparison flowchart of the application. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the application.

[0051] As shown in Figs. 1-2 The application provides a communication infrastructure full life cycle management system based on digital twin, which is applied to a communication network including a core network, a bearer network and an access network, and adopts a center-side and multiple communication network edge node cooperative deployment manner to uniformly manage the topological structure information and life cycle event information of the communication infrastructure.

[0052] A communication infrastructure object library is set up on the center side, which is used to allocate a unique infrastructure segment identifier for each physical infrastructure segment, and store the topological connection relationship data, life cycle event sequence and life cycle fingerprint generated by the life cycle event sequence related to the infrastructure segment. Through the communication infrastructure object library, the static topological information and the life cycle record changing over time of the communication infrastructure can be uniformly maintained on the center side.

[0053] The center side is also provided with a lifecycle event management and fingerprint generation device which interacts with the communication infrastructure object library to obtain event records related to each infrastructure segment from the planning and design information system, the engineering construction information system and the operation and maintenance information system, constructs a corresponding lifecycle event sequence according to the time sequence of event occurrence, generates a lifecycle fingerprint with fixed length according to the lifecycle event sequence, writes the generated lifecycle event sequence and lifecycle fingerprint into the record of the corresponding infrastructure segment in the communication infrastructure object library, and simultaneously, the lifecycle event management and fingerprint generation device sends the lifecycle fingerprint corresponding to the infrastructure segment to the edge node managing the infrastructure segment according to the infrastructure segment identifier, for generating a reporting message carrying the lifecycle fingerprint at the edge side;

[0054] The reporting message processing device is connected with the lifecycle event management and fingerprint generation device at the center side, and maintains a fingerprint cache locally for storing the lifecycle fingerprint corresponding to the infrastructure segment identifier managed by the edge node, reads the lifecycle fingerprint corresponding to the target infrastructure segment identifier from the local fingerprint cache when the edge node needs to generate a status detection message, an alarm message or a performance message for a target infrastructure segment, writes the lifecycle fingerprint into the extension field or the management service payload field of the message header, and then sends the message carrying the lifecycle fingerprint to the center side through the access network and the bearer network, and when the local fingerprint cache does not yet store the lifecycle fingerprint corresponding to the target infrastructure segment identifier, the reporting message processing device writes a fingerprint missing identifier in the designated position of the message, to indicate that the message does not carry the lifecycle fingerprint corresponding to the target infrastructure segment identifier when generated;

[0055] The center side is also provided with a digital twin management device which is connected with the communication infrastructure object library and the reporting message processing device, constructs a communication infrastructure digital twin model based on the topological connection relationship data in the communication infrastructure object library, establishes a corresponding virtual infrastructure segment for each physical infrastructure segment in the model, and establishes a one-to-one correspondence between the virtual infrastructure segment and the infrastructure segment identifier, and simultaneously, the lifecycle fingerprint stored in the communication infrastructure object library is taken as a reference lifecycle fingerprint and is associated to the corresponding virtual infrastructure segment in the digital twin model, when the center side receives the reporting message carrying the lifecycle fingerprint from each edge node, the digital twin management device analyzes the message, extracts the infrastructure segment identifier and the lifecycle fingerprint in the message, and provides the analyzed infrastructure segment identifier, lifecycle fingerprint and corresponding virtual infrastructure segment information to the subsequent comparison processing module;

[0056] The fingerprint consistency comparison and track reconstruction device is further arranged on the center side, connected with the digital twin management device and the communication infrastructure object library, and used for checking the consistency of the lifecycle record based on the lifecycle fingerprint, and reconstructing the lifecycle event sequence when necessary. Specifically, the fingerprint consistency comparison and track reconstruction device receives the infrastructure segment identifier provided by the digital twin management device and the lifecycle fingerprint carried by the message, finds the virtual infrastructure segment corresponding to the infrastructure segment identifier in the digital twin model, reads the reference lifecycle fingerprint currently associated with the virtual infrastructure segment, and compares the lifecycle fingerprint carried by the message with the reference lifecycle fingerprint according to a preset comparison rule. When the comparison result shows that the two are inconsistent, or when it is detected that the message carries a fingerprint missing identifier, the fingerprint consistency comparison and track reconstruction device reads the lifecycle event sequence of the infrastructure segment from the communication infrastructure object library, time sorts and removes repeated events from the lifecycle event sequence, obtains the reconstructed lifecycle event sequence, generates a new lifecycle fingerprint according to the reconstructed lifecycle event sequence, and then writes the reconstructed lifecycle event sequence and the new lifecycle fingerprint back to the corresponding record in the communication infrastructure object library, and updates the lifecycle information associated with the corresponding virtual infrastructure segment in the digital twin model, so that the lifecycle state reflected in the digital twin model is consistent with the record in the communication infrastructure object library.

[0057] The fingerprint missing identifier is a value pre-agreed in the reporting message, used to explicitly identify that the message does not carry the lifecycle fingerprint corresponding to the target infrastructure segment identifier when generated, so as to facilitate the center side to distinguish and process such messages in the fingerprint comparison and lifecycle event reconstruction process.

[0058] In one specific embodiment of the present application, the lifecycle event management and fingerprint generation device is deployed on the center side server, and data connections are established with the communication survey and design system, the engineering construction management system, the operation and maintenance work order system and the alarm performance management system through a pre-configured interface. Each system encodes the involved station, line segment and facility unit according to the infrastructure segment identifier coding rule agreed in the communication infrastructure object library in the project initiation stage, so that the records generated in the subsequent stages all contain an infrastructure segment identifier field for uniquely identifying the infrastructure segment. The lifecycle event management and fingerprint generation device takes the infrastructure segment identifier as the primary key, collects and arranges the records from different systems, and generates the lifecycle event sequence corresponding to each infrastructure segment.

[0059] Among them, the design stage event collection component is connected with the communication survey and design system, and the design change record is periodically read through database query or interface call. The design change record at least includes infrastructure segment identification, change type, change content summary, approval passing time and approval result fields. In the embodiment, the records of site selection adjustment, machine room structure change, line path adjustment and equipment model replacement, and the records with approval result as passing are identified as design stage events, and the standardized design event entries are generated accordingly. The design event entries at least include infrastructure segment identification, event type, event occurrence time and key attribute parameters, and are written into the corresponding life cycle event sequence according to the infrastructure segment identification. The records that do not pass the approval are not written into the life cycle event sequence, so as to avoid interference with the life cycle record.

[0060] The construction stage event collection component is connected with the engineering construction management system, and is used for collecting key quality control information in the construction process. The related records in the engineering construction management system at least include infrastructure segment identification, construction process number, material batch number, quality inspection result, concealed engineering image data index and completion acceptance conclusion fields. In the embodiment, the concealed node closing record and the key process acceptance conclusion are identified as construction stage events. When a concealed engineering node is completed and closed to form image data, the construction stage event collection component generates a construction event entry according to the infrastructure segment identification and the process number, and writes the closing time, image data index and related material batch number into the construction event entry. When the key process passes the quality inspection and forms the acceptance conclusion, the construction event entry is also generated. The above construction event entries are inserted into the corresponding life cycle event sequence according to the infrastructure segment identification, and are sorted according to the event occurrence time, so that the life cycle event sequence can reflect the execution order of each key process in the construction stage and the processing condition of the concealed engineering. For multiple infrastructure segments using the same material batch, the material batch number field can be used as the basis for subsequent cross-infrastructure segment quality risk association analysis.

[0061] The operation and maintenance phase event collection component is connected with the operation and maintenance work order system and the alarm performance management system, and is used to collect operation and maintenance phase operation records and alarm closed-loop information. The records in the operation and maintenance work order system at least include infrastructure segment identifier, work order type, planned start time, actual start time, actual end time, work content summary and processing conclusion fields. The records in the alarm performance management system include infrastructure segment identifier, alarm type, alarm triggering time, alarm clearing time and alarm processing result. The embodiment identifies the work order execution records corresponding to the planned maintenance, emergency repair, service cut, capacity expansion and modification and decommissioning operation as operation and maintenance events, and arranges the records in the alarm triggering, alarm confirmation and alarm clearing process as alarm closed-loop information, which is also mapped as operation and maintenance event entries. Each operation and maintenance event entry at least contains infrastructure segment identifier, event type, event start time, event end time and processing result fields, and is written into the corresponding life cycle event sequence according to the infrastructure segment identifier. For multiple records generated by the same work order or the same alarm, the operation and maintenance phase event collection component is merged before writing to avoid repeated records of the same event in the life cycle event sequence.

[0062] In order to facilitate unified processing across stages, a unified event data model is used inside the life cycle event management and fingerprint generation device to standardize the description of the design phase events, construction phase events and operation and maintenance phase events. The event data model at least includes infrastructure segment identifier field, event phase field, event type field, event time field, event source system field and event additional attribute field. Each phase event collection component fills in the fields according to the data model when converting the original records into life cycle event entries, and sets the event phase field as one of the design phase, construction phase or operation and maintenance phase. The life cycle event management and fingerprint generation device maintains a time-ordered event sequence for each infrastructure segment using the infrastructure segment identifier as the index. When a new event entry is received, it is inserted into the life cycle event sequence of the corresponding infrastructure segment and sorted according to the event time field. When there are multiple events with the same event timestamp, the insertion order can be determined in combination with the event type and event source system field, so as to ensure that the order of the life cycle event sequence is determined.

[0063] Compared with the practice in the prior art of recording information in the design system, the construction system and the operation and maintenance system respectively according to projects or work orders, and lacking a full life cycle event view aggregated according to infrastructure segments, the embodiment combines and sorts records from different stages and different systems according to infrastructure segments to form a complete life cycle event sequence for a single infrastructure segment by setting a design stage event collection component, a construction stage event collection component and an operation and maintenance stage event collection component in the life cycle event management and fingerprint generation device and based on a unified infrastructure segment identifier and an event data model. In this way, on the one hand, the life cycle event management and fingerprint generation device provides an event basis covering the whole process of design, construction and operation for subsequent generation of a life cycle fingerprint, and on the other hand, the life cycle event management and fingerprint generation device provides clear data input for life cycle trajectory reconstruction and risk assessment in a digital twin model.

[0064] In a specific embodiment of the present application, the life cycle event management and fingerprint generation device is further configured to encode the event sequence into a life cycle fingerprint with a fixed length after the construction of the event sequence, so as to occupy a determined field space when a network management message is transmitted and to be parsed and compared in a unified format at the center side.

[0065] In a specific implementation, the life cycle event management and fingerprint generation device reads all event entries of a certain infrastructure segment from the life cycle event sequence, which is written in chronological order by the design stage event collection component, the construction stage event collection component and the operation and maintenance stage event collection component. Each event entry includes at least an infrastructure segment identifier, an event stage field, an event type field and an event time field. The device divides the event entries into three groups, i.e., a design stage group, a construction stage group and an operation and maintenance stage group, according to the event stage field. Each group contains only event entries of the corresponding stage.

[0066] After the stage division, the life cycle event management and fingerprint generation device counts the number of occurrences of different event types in each stage group. The event type field adopts a pre-agreed enumeration coding method in the aforementioned event data model. The design stage includes event types such as site selection adjustment, room structure change, line path adjustment and device model replacement. The construction stage includes event types such as concealed node closure and key process acceptance. The operation and maintenance stage includes event types such as planned maintenance, emergency repair, service splicing, capacity expansion, decommissioning operation and alarm closed loop. The device counts the number of occurrences of each event type in each stage group and forms a corresponding event number count table. In order to ensure the controllability of the length of the life cycle fingerprint code, the embodiment sets a maximum recordable value for each type of event in the event number count table. When the actual number exceeds the maximum value, the maximum value is recorded. The maximum value can be configured according to the network scale and the coding length constraint.

[0067] After obtaining the event number statistics table of each stage, the life cycle event management and fingerprint generation device sorts the event entries in each stage grouping according to the event time field, and generates event sequence encoding. In this embodiment, the event entries are scanned in time sequence, each event type is mapped to a fixed-length encoding unit (for example, the event type is encoded in 4-bit binary), then the encoding units are spliced in time sequence to form an event sequence encoding sequence, and the first few bits are truncated according to the preset truncation length as the sequence feature field of the stage. In this way, without retaining all time stamps, the event sequence encoding can still reflect the arrangement pattern of events on the time axis, such as distinguishing different trajectories of first occurring design adjustment and then occurring expansion modification, and first occurring expansion modification and then occurring design adjustment;

[0068] In terms of encoding structure, the life cycle fingerprint is divided into event number encoding segment, key process encoding segment and abnormal event encoding segment, and arranged in a predetermined field order, so that the life cycle fingerprint carries event number information, key process information and abnormal event information at the same time under the premise of fixed length; the event number encoding segment is used to record the occurrence number of various types of regular events in the three stages, and the field order is one-to-one corresponding to the event type enumeration encoding; the key process encoding segment is used to record the feature information of construction quality related events such as hidden node closure and key process acceptance, which can be obtained by combining the event number related to the key process in the construction stage grouping and the corresponding sequence feature field; the abnormal event encoding segment is used to record the abnormal event statistics results closely related to the operation stability, which at least includes two fields of emergency repair event number and unplanned splice event number in a preset statistical time window in this embodiment. The preset statistical time window can be configured according to month, quarter or maintenance period defined by operation and maintenance unit, and the life cycle event management and fingerprint generation device only counts the event entries falling within the time window when generating the abnormal event encoding segment;

[0069] Finally, the life cycle event management and fingerprint generation device fills the event number statistics results of each stage and their sequence feature fields into the event number encoding segment and the key process encoding segment according to the predetermined field order, and fills the abnormal event statistics results such as emergency repair event number and unplanned splice event number into the abnormal event encoding segment, to form a fixed-length life cycle fingerprint, which is written into the communication infrastructure object library together with the corresponding infrastructure segment identifier, for transmission with the management message by the reporting message processing device, and is parsed and compared by the fingerprint consistency comparison and trajectory reconstruction device on the center side according to the fields;

[0070] Compared with the existing method of only retaining original work order records, alarm logs or simply counting the number of failures in a stage in each business system, the embodiment compresses the event quantity distribution, key construction process execution and abnormal event occurrence into a structured life cycle fingerprint by uniformly grouping, counting and coding the life cycle events in the design stage, construction stage and operation and maintenance stage, so that the center side can judge the difference between the life cycle trajectories of different infrastructure segments and the consistency of the life cycle state of the same infrastructure segment at different times through field-level comparison without obtaining all original event details, thereby providing directly usable input data for subsequent trajectory reconstruction and risk assessment.

[0071] On the basis of the foregoing embodiment of the application, the report message processing device is deployed at each communication network edge node to realize local caching and reporting of the life cycle fingerprint at the edge side, the report message processing device comprises an infrastructure segment fingerprint cache, a message generation component and a fingerprint missing marking component, and the components exchange data with each other in the same edge node through a local bus or inter-process communication;

[0072] The infrastructure segment fingerprint cache is used to locally store the life cycle fingerprint corresponding to the infrastructure segment identifier managed by the edge node at the edge node, and the life cycle event management and fingerprint generation device at the center side sends update information to the edge node managing the infrastructure segment through a fingerprint issuing interface after generating or updating the life cycle fingerprint of the infrastructure segment, so that the report message processing device creates or updates the corresponding entry in the infrastructure segment fingerprint cache after receiving the update information, so that the life cycle fingerprint in the local cache is consistent with the record in the communication infrastructure object library, and the cache structure can adopt a key-value table form, the key is the infrastructure segment identifier, and the value is the life cycle fingerprint and the optional version number, so as to facilitate coverage or version checking during subsequent fingerprint updating;

[0073] The message generation component is connected with the existing alarm acquisition module, performance acquisition module and inspection acquisition module of the edge node, and when the edge node acquires alarm information, performance sampling results or inspection results related to a target infrastructure segment, the message generation component generates a state detection message or an alarm message according to a preconfigured message format, reads the life cycle fingerprint corresponding to the target infrastructure segment identifier from the infrastructure segment fingerprint cache during the generation process, writes the life cycle fingerprint into the message header extension field or the management service field in the message payload, and writes the infrastructure segment identifier into the message identifier field, and then the message generation component sends the message carrying the life cycle fingerprint to the center side through the access network and the bearer network, so that the center side can directly obtain the life cycle fingerprint corresponding to the target infrastructure segment when receiving the message, without the need to query historical event data from the edge node;

[0074] The fingerprint missing marking component is used to handle the case that a certain infrastructure segment life cycle fingerprint does not exist in the infrastructure segment fingerprint cache, when the message generation component does not find the life cycle fingerprint corresponding to the target infrastructure segment identifier in the cache when reading the fingerprint, the fingerprint missing marking component writes a fingerprint missing identifier in the message reserved field, the fingerprint missing identifier is a special value agreed in advance, which is used to indicate that the message is generated without carrying the life cycle fingerprint corresponding to the target infrastructure segment identifier, and the center side can distinguish the message carrying the effective fingerprint from the fingerprint missing message according to this, so as to provide conditions for subsequent life cycle event completion and correction;

[0075] On the center side, the fingerprint consistency comparison and trajectory reconstruction device verifies the life cycle fingerprint according to the preset comparison rule, the digital twin management device transmits the infrastructure segment identifier and the life cycle fingerprint in the message to the fingerprint consistency comparison and trajectory reconstruction device after analyzing the reported message, and provides the reference life cycle fingerprint associated with the virtual infrastructure segment corresponding to the infrastructure segment identifier in the digital twin model, the fingerprint consistency comparison and trajectory reconstruction device compares the life cycle fingerprint carried by the message with the reference life cycle fingerprint field by field according to the field order of the life cycle fingerprint: when all field values are the same and the message does not carry the fingerprint missing identifier, it is determined that the comparison result is fingerprint consistent, and the life cycle event reconstruction is not triggered; when any field value is different or the message carries the fingerprint missing identifier, it is determined that the fingerprints are inconsistent, and the determination result is used as a condition for starting the life cycle trajectory reconstruction for the infrastructure segment, through the field-level comparison, whether the life cycle state needs to be corrected can be judged without expanding the complete event list, and the processing overhead of the center side is reduced;

[0076] On the basis of the above, the center side is configured with a risk assessment and maintenance strategy generation device for assessing the infrastructure structure risk based on the life cycle event data in the digital twin model and generating a maintenance strategy, the risk assessment and maintenance strategy generation device is connected with the digital twin management device and the fingerprint consistency comparison and trajectory reconstruction device, and in a preset statistical time window (such as monthly or quarterly), the life cycle event sequence associated with each virtual infrastructure segment is read from the digital twin model, the number of emergency repair events, the number of unplanned splicing events and the number of material replacement events involving the same material batch for each virtual infrastructure segment are counted respectively, the device maintains a risk threshold configuration table, and sets corresponding risk thresholds for the above event indicators, when any statistical result of a certain virtual infrastructure segment exceeds the corresponding threshold in the statistical time window, the virtual infrastructure segment is marked as a high-risk virtual infrastructure segment, and the event type and statistical value triggering the risk marking are recorded;

[0077] After identifying the structural high-risk virtual infrastructure segment, the risk assessment and maintenance strategy generation device further queries other virtual infrastructure segments directly connected to the structural high-risk virtual infrastructure segment by using the topological connection relationship in the digital twin model, forms a risk-associated virtual infrastructure segment set, and generates a maintenance strategy based on the structural high-risk virtual infrastructure segment and the risk-associated virtual infrastructure segment set. The maintenance strategy at least includes infrastructure segment identification that needs to be checked on site and on-site inspection sequence. The on-site inspection sequence can be sorted by considering the event severity, the event occurrence time, and the importance of the virtual infrastructure segment in the topology, thereby providing clear inspection routes for the operation and maintenance personnel.

[0078] To associate the structural risk with the business impact, the digital twin management device maintains the mapping relationship between the communication business flow path and the virtual infrastructure segment when constructing the digital twin model. Specifically, the digital twin management device records the sequence of virtual infrastructure segments that each communication business flow passes through according to the network topology and routing configuration, and stores the sequence in association with the business identification. When the risk assessment and maintenance strategy generation device marks the structural high-risk virtual infrastructure segment, the device queries all communication business flow paths that pass through the structural high-risk virtual infrastructure segment in the digital twin model based on the above mapping relationship, marks the corresponding business objects as structural risk businesses, and extracts the business identification of these business objects and the virtual infrastructure segment identification involved in the business flow path to form a structural risk business list.

[0079] The risk assessment and maintenance strategy generation device provides the business identification in the structural risk business list and the corresponding virtual infrastructure segment identification to the business scheduling system. The business scheduling system performs business migration or bandwidth adjustment operations on the business objects marked as structural risk businesses according to the preset business priority and the current network resource configuration parameters, such as migrating high-priority businesses from the path passing through the structural high-risk virtual infrastructure segment to a backup path, or reallocating the bandwidth of the related link. In this way, the present application identifies the structural high-risk virtual infrastructure segment at the infrastructure level and identifies the structural risk business at the business level, so that the maintenance strategy and the business scheduling strategy are executed cooperatively.

[0080] The communication infrastructure object library adopts a segmented coding rule for infrastructure segment identification, so as to uniformly identify the same infrastructure segment between different modules, each infrastructure segment identification is composed of a region coding segment, a line coding segment and a facility type coding segment, the region coding segment represents a geographical region where the infrastructure is located, the line coding segment represents a transmission line or a pipeline segment to which the infrastructure belongs, and the facility type coding segment represents a machine room, a pipeline or a pole line infrastructure category, the communication infrastructure object library uses the segmented coding rule to maintain the primary key identification and the topological connection relationship of each infrastructure segment, the reporting message processing device is based on the same segmented coding rule to identify and route the infrastructure segment when generating the reporting message and when analyzing the reporting message by the fingerprint consistency comparison and trajectory reconstruction device: the edge node determines the target center side processing domain of the message according to the infrastructure segment identification when generating the message, and the center side locates the corresponding record in the communication infrastructure object library and the virtual infrastructure segment in the digital twin model according to the infrastructure segment identification after analyzing the message, so that the life cycle fingerprint, the life cycle event sequence and the topological information are associated around the unified infrastructure segment identification;

[0081] Compared with the conventional scheme in which only device identification and alarm type are carried in the network management message and life cycle information is scattered in multiple systems of design, construction and operation and maintenance, the embodiment sets an infrastructure segment fingerprint cache and a fingerprint missing marker mechanism on the edge side, adopts a fingerprint consistency comparison and trajectory reconstruction process based on field comparison on the center side, and closely combines the life cycle fingerprint with structural risk assessment and business scheduling through a risk assessment and maintenance strategy generation device and a business flow mapping mechanism.

[0082] In one specific embodiment of the application, based on the foregoing system structure, a communication infrastructure full life cycle management method based on digital twin is provided, which is used to form life cycle records aggregated according to infrastructure segments in planning and design, engineering construction and operation and maintenance stages, and drive correction and risk assessment of the digital twin model through reporting messages carrying life cycle fingerprints, the method is cooperatively executed by a center side server and multiple communication network edge nodes, and specifically includes the following stages:

[0083] In the life cycle event collection stage, for each physical infrastructure segment in the communication network, the life cycle event management and fingerprint generation device on the center side collects design adjustment records, construction quality inspection records, capacity expansion and reconstruction records, fault repair records and retirement operation records related to the infrastructure segment from the communication survey and design system, the engineering construction management system and the operation and maintenance work order system through the pre-configured interface. Each business system includes an infrastructure segment identifier field when recording data. The life cycle event management and fingerprint generation device indexes the infrastructure segment identifier to arrange the records belonging to the same infrastructure segment in chronological order of event occurrence, constructs the life cycle event sequence of the infrastructure segment, and writes the life cycle event sequence in a time-ordered structure into the life cycle event record field of the center-side communication infrastructure object library. The field structure of the event entry and the phase division and standardized processing manner can be implemented according to the aforementioned life cycle event data model;

[0084] In the life cycle fingerprint generation and delivery stage, the life cycle event management and fingerprint generation device generates a life cycle fingerprint according to the event type, phase and occurrence time interval of each event in the life cycle event sequence. Specifically, the aforementioned method of combining event number statistics results and event order encoding can be used to compress the key event features across the design, construction and operation phases into a fixed-length life cycle fingerprint. The generated life cycle fingerprint is stored in association with the infrastructure segment identifier in the life cycle fingerprint field of the communication infrastructure object library and is synchronized to the communication network edge node managing the infrastructure segment through the fingerprint delivery interface. The reporting message processing device of the edge node writes the local infrastructure segment fingerprint cache to keep the center-side object library and the edge-side cache consistent;

[0085] In the message generation and fingerprint carrying stage, when the communication network edge node needs to generate a state detection message or an alarm message for a target infrastructure segment, the reporting message processing device reads the life cycle fingerprint corresponding to the target infrastructure segment identifier from the local infrastructure segment fingerprint cache, writes the life cycle fingerprint into the message header extension field or the management business payload field, and writes the infrastructure segment identifier into the message identifier field. The message carrying the life cycle fingerprint is sent to the center side through the access network and the bearer network. If the life cycle fingerprint corresponding to the target infrastructure segment identifier is not obtained in the infrastructure segment fingerprint cache, the reporting message processing device writes a pre-agreed fingerprint missing identifier in the reserved field of the message to identify that the message does not carry an effective fingerprint in subsequent processing at the center side;

[0086] In the center side fingerprint comparison and trajectory reconstruction stage, the digital twin management device parses the received report message, extracts the infrastructure segment identifier and the life cycle fingerprint (or fingerprint missing identifier) in the message, finds the virtual infrastructure segment corresponding to the infrastructure segment identifier in the digital twin model, reads the reference life cycle fingerprint currently associated with the virtual infrastructure segment, and the fingerprint consistency comparison and trajectory reconstruction device compares the life cycle fingerprint carried by the message with the reference life cycle fingerprint field by field according to the field order of the life cycle fingerprint: when all field values are the same and the message does not carry the fingerprint missing identifier, it is determined that the fingerprints are consistent, and the life cycle record of the infrastructure segment is not modified; when there is at least one field value different, or the message carries the fingerprint missing identifier, it is determined that the fingerprints are inconsistent; at this time, the fingerprint consistency comparison and trajectory reconstruction device retrieves the life cycle event sequence of the infrastructure segment from the communication infrastructure object library, reorders the event sequence according to the time field and removes duplicate events, generates the reconstructed life cycle event sequence, and regenerates the life cycle fingerprint based on the reconstructed life cycle event sequence, writes the reconstructed life cycle event sequence and the new life cycle fingerprint back to the communication infrastructure object library, and updates the life cycle information of the corresponding virtual infrastructure segment in the digital twin model, so that the life cycle trajectory in the digital twin model is consistent with the actual engineering and operation process;

[0087] In the risk assessment and maintenance strategy generation stage, the risk assessment and maintenance strategy generation device generates a maintenance strategy based on the updated life cycle event sequence in the digital twin model and the currently collected alarm information and performance indicators. Within a preset statistical time window, the device respectively counts the number of emergency repair events, unplanned switching events, and material replacement events for each virtual infrastructure segment. The device compares each statistical result with the risk threshold value set for that item in the risk threshold value configuration table. For any virtual infrastructure segment with a statistical result exceeding the corresponding risk threshold value, the device marks it as a structurally high-risk virtual infrastructure segment, forms a structurally high-risk virtual infrastructure segment set, and generates a maintenance strategy. The maintenance strategy includes at least the infrastructure segment identifier corresponding to each structurally high-risk virtual infrastructure segment and the abstract information extracted from the key life cycle events, which is used to guide the operation personnel to develop an on-site inspection plan and inspection sequence. Combined with the aforementioned topology relationship and business flow mapping mechanism, the corresponding structural risk business can be identified at the business level, providing input for business scheduling systems to perform business migration and bandwidth adjustment.

[0088] Through the above method steps, the original engineering records and operation and maintenance records scattered in the design, construction and operation and maintenance systems are converted into life cycle event sequences aggregated according to infrastructure sections and further encoded into life cycle fingerprints that can be transmitted with messages under the unified data model and digital twin framework; the life cycle trajectories in the digital twin model are ensured to be consistent with the actual engineering and operation and maintenance processes through field-level fingerprint comparison and necessary event reconstruction on the center side; on this basis, the life cycle event statistics, alarm information and performance indicators are comprehensively analyzed to form structural high-risk virtual infrastructure section markers and corresponding maintenance strategies. Compared with the conventional scheme of only recording information in each business system according to the project or work order dimension and carrying only the device identifier and alarm type in the network management message, the embodiment realizes integrated life cycle management with infrastructure section as the granularity and across the whole process of design-construction-operation and maintenance, and links the life cycle management results with risk assessment and business scheduling, which is suitable for fine infrastructure management and control in complex communication network environment.

[0089] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0090] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A digital-twin-based communication infrastructure lifecycle management system, applied to a communication network including a core network, a bearer network and an access network, characterized in that, The system is deployed on a center side and a plurality of communication network edge nodes, comprising: a communication infrastructure object library on the center side, configured to assign a unique infrastructure segment identifier to each physical infrastructure segment, and store topological connection relationship data, a lifecycle event sequence, and a lifecycle fingerprint corresponding to each infrastructure segment, wherein the physical infrastructure segment is a transmission line or a pipeline segment, or an infrastructure unit of a rack, a pipeline, or a pole line type; a lifecycle event management and fingerprint generation device on the center side, connected to the communication infrastructure object library, configured to obtain event records of each infrastructure segment from information systems related to planning and design, engineering construction, and operation and maintenance, generate a lifecycle event sequence in chronological order of event occurrence, and generate a fixed-length lifecycle fingerprint according to the lifecycle event sequence, write the lifecycle event sequence and the lifecycle fingerprint into the communication infrastructure object library, and issue the lifecycle fingerprint corresponding to the infrastructure segment identifier to an edge node managing the infrastructure segment; a report message processing device deployed on each edge node, connected to the lifecycle event management and fingerprint generation device, configured to read the lifecycle fingerprint corresponding to the target infrastructure segment identifier from a local fingerprint cache when generating a status detection message, an alarm message, or a performance message for a target infrastructure segment, write the lifecycle fingerprint into a message header extension field or a management service payload field, and send the message carrying the lifecycle fingerprint to the center side through a communication network, and write a fingerprint missing identifier in the message when the lifecycle fingerprint corresponding to the target infrastructure segment identifier is not obtained from the fingerprint cache; a digital twin management device on the center side, connected to the communication infrastructure object library and the report message processing device, configured to construct a communication infrastructure digital twin model based on the communication infrastructure object library, establish a one-to-one correspondence between a virtual infrastructure segment and an infrastructure segment identifier in the digital twin model, and associate the lifecycle fingerprint in the communication infrastructure object library to the corresponding virtual infrastructure segment as a reference lifecycle fingerprint; a fingerprint consistency comparison and trajectory reconstruction device on the center side, connected to the digital twin management device and the communication infrastructure object library, configured to obtain an infrastructure segment identifier and a lifecycle fingerprint from the report message, find a corresponding virtual infrastructure segment in the digital twin model, read a reference lifecycle fingerprint and compare it with the lifecycle fingerprint carried by the message, when determining that the lifecycle fingerprints are inconsistent or the message carries a fingerprint missing identifier, read a lifecycle event sequence of the infrastructure segment from the communication infrastructure object library, perform time sorting and repeated event removal on the lifecycle event sequence, generate a reconstructed lifecycle event sequence, generate a new lifecycle fingerprint based on the reconstructed lifecycle event sequence, write the reconstructed lifecycle event sequence and the new lifecycle fingerprint back to the communication infrastructure object library, and update the corresponding virtual infrastructure segment in the digital twin model.

2. The communication infrastructure lifecycle management system based on digital twinning according to claim 1, characterized in that: The lifecycle event management and fingerprint generation apparatus comprises: a design phase event collection component configured to obtain site selection adjustment, machine room structure change, line path adjustment, and equipment model replacement records from a communication survey and design system, and add approved design adjustment as a design event to a lifecycle event sequence of a corresponding infrastructure segment; a construction phase event collection component configured to obtain material batch information, key process quality inspection records, concealed engineering image data, and completion acceptance conclusion in a construction process from an engineering construction management system, and add concealed node closure records and key process acceptance conclusion as construction events to the corresponding lifecycle event sequence; an operation and maintenance phase event collection component configured to obtain start time, end time, and processing result of planned maintenance, emergency repair, service cut, capacity expansion, and retirement operation from an operation and maintenance work order system and an alarm performance management system, and add work order execution records and alarm closed loop records as operation and maintenance events to the corresponding lifecycle event sequence.

3. The communication infrastructure lifecycle management system based on digital twinning according to claim 2, characterized in that: The lifecycle event management and fingerprint generation apparatus is configured to: divide the lifecycle event sequence into a plurality of stage groups according to the design phase, the construction phase, and the operation and maintenance phase, count the occurrence number of different event types in each stage group, and obtain event number counting results; generate event sequence codes according to the time sequence of event occurrence in each stage group; splice the event number counting results of each stage and the event sequence codes according to a predetermined field sequence to form the fixed-length lifecycle fingerprint. The lifecycle fingerprint comprises an event number coding segment, a key process coding segment, and an abnormal event coding segment, and the abnormal event coding segment is used to record the number of emergency repair events and the number of unplanned cut events of the corresponding infrastructure segment within a preset statistical time window.

4. The communication infrastructure lifecycle management system based on digital twinning according to claim 3, characterized in that: The report message processing apparatus comprises: an infrastructure segment fingerprint cache configured to locally store, at an edge node, a lifecycle fingerprint corresponding to an infrastructure segment identifier managed by the edge node, and update the lifecycle fingerprint of the corresponding infrastructure segment to the infrastructure segment fingerprint cache when receiving lifecycle fingerprint update information from the lifecycle event management and fingerprint generation apparatus; a message generation component configured to generate a state detection message or an alarm message according to a preconfigured message format when collecting alarm information, performance sampling results, or inspection results related to a target infrastructure segment, read the lifecycle fingerprint of the target infrastructure segment from the infrastructure segment fingerprint cache, write the lifecycle fingerprint into an extension field in a message header or a management service field in a message payload, and send the message to a communication network; a fingerprint absence marking component configured to write the fingerprint absence identifier into the message when the lifecycle fingerprint of the target infrastructure segment is not found in the infrastructure segment fingerprint cache.

5. The communication infrastructure lifecycle management system based on digital twinning according to claim 4, characterized in that: The preset comparison rule in the fingerprint consistency comparison and trajectory reconstruction apparatus comprises: The life cycle fingerprint carried by the message is compared with the reference life cycle fingerprint field by field in sequence, and it is determined to be consistent when all field values are the same, and it is determined to be inconsistent when there is at least one field value difference or the message carries fingerprint missing identification.

6. The communication infrastructure lifecycle management system based on digital twinning according to claim 5, characterized in that: The system also includes a risk assessment and maintenance strategy generation device deployed at the center side, connected with the digital twin management device and the fingerprint consistency comparison and trajectory reconstruction device, for: Within a preset statistical time window, based on the life cycle event sequence of each virtual infrastructure segment in the digital twin model, the number of emergency repair events, the number of unplanned splicing events, and the number of material replacement events involving the same material batch of each virtual infrastructure segment are counted, and each statistical result is compared with the set risk threshold value. When any statistical result is greater than the corresponding risk threshold value, mark the virtual infrastructure segment as a structurally high-risk virtual infrastructure segment; According to the topological connection relationship in the digital twin model, determine other virtual infrastructure segments directly connected to the structurally high-risk virtual infrastructure segment to obtain a set of risk-associated virtual infrastructure segments, and generate a maintenance strategy for the structurally high-risk virtual infrastructure segment and the set of risk-associated virtual infrastructure segments. The maintenance strategy includes infrastructure segment identification that needs to be checked on site and on-site inspection sequence.

7. The communication infrastructure lifecycle management system based on digital twinning according to claim 6, characterized in that: The digital twin management device is also used to maintain the mapping relationship between the communication service flow path and the virtual infrastructure segment, and the risk assessment and maintenance strategy generation device is further used to: In the digital twin model, query the communication service flow path passing through the structurally high-risk virtual infrastructure segment, mark the service object corresponding to the communication service flow path as a structurally risky service, and provide the service identification and corresponding virtual infrastructure segment identification of the service object to the service scheduling system. The service scheduling system performs service migration operations or bandwidth adjustment operations according to the preset service priority and network resource configuration parameters.

8. The communication infrastructure lifecycle management system based on digital twinning according to claim 7, characterized in that: The communication infrastructure object library adopts a segmented encoding infrastructure segment identification encoding rule, the infrastructure segment identification includes a region encoding segment, a line encoding segment and a facility type encoding segment, and the reporting message processing device generates a reporting message and the fingerprint consistency comparison and trajectory reconstruction device analyzes the reporting message. When the reporting message is generated, the infrastructure segment is identified and the message is routed based on the infrastructure segment identification encoding rule. 9.A method for digital-twin-based life cycle management of communication infrastructure, applied to the system of any one of claims 1 to 8, characterized in that, The physical infrastructure segment is a transmission line or a pipeline section, or an infrastructure unit of a machine room, a pipeline, and a pole line type, including the following steps: S1, for each physical infrastructure segment, collect design adjustment records, construction quality inspection records, capacity expansion and reconstruction records, fault repair records and retirement operation records from a communication survey and design system, an engineering construction management system and an operation and maintenance work order system, arrange the records belonging to the same infrastructure segment in chronological order to form a life cycle event sequence, and write the life cycle event sequence into the life cycle event record field in the center side communication infrastructure object library through the life cycle event management and fingerprint generation device; S2, generating a lifecycle fingerprint according to the event type, the stage to which the event type belongs, and the time interval of each event in the lifecycle event sequence, writing the lifecycle fingerprint associated with the corresponding infrastructure segment identifier into the lifecycle fingerprint field of the communication infrastructure object library, and synchronizing the updated lifecycle fingerprint to the communication network edge node managing the infrastructure segment through a fingerprint issuing interface; S3, when generating a state detection message or an alarm message for a target infrastructure segment in the communication network edge node, reading the lifecycle fingerprint corresponding to the target infrastructure segment identifier from the local fingerprint cache, writing the lifecycle fingerprint into the message header extension field or the management service payload field of the message, and sending the message carrying the lifecycle fingerprint to the center side through the access network and the bearer network; when the lifecycle fingerprint is not obtained from the fingerprint cache, writing a fingerprint missing identifier into the message; S4, analyzing the reported message received at the center side, extracting the infrastructure segment identifier and the lifecycle fingerprint in the message, finding the corresponding virtual infrastructure segment in the digital twin model, reading the reference lifecycle fingerprint stored in the virtual infrastructure segment, comparing the lifecycle fingerprint carried by the message with the reference lifecycle fingerprint according to the field order, determining that they are consistent when all field values are the same, determining that they are inconsistent when there is at least one different field value or the message carries a fingerprint missing identifier, calling the lifecycle event sequence of the infrastructure segment from the communication infrastructure object library, time sorting and removing repeated events of the lifecycle event sequence, generating a reconstructed lifecycle event sequence, regenerating a lifecycle fingerprint based on the reconstructed lifecycle event sequence, writing the reconstructed lifecycle event sequence into the lifecycle event record field in the center side communication infrastructure object library, writing the regenerated lifecycle fingerprint into the lifecycle fingerprint field of the communication infrastructure object library, and updating the lifecycle information of the corresponding virtual infrastructure segment in the digital twin model; S5, based on the updated lifecycle event sequence in the digital twin model and the current alarm information and performance indicators, counting the number of emergency repair events, the number of unplanned switching events, and the number of material replacement events of each virtual infrastructure segment within a preset statistical time window, marking any virtual infrastructure segment with any of the statistical results greater than the corresponding risk threshold as a structurally high-risk virtual infrastructure segment, and generating a maintenance strategy containing the infrastructure segment identifier and the key lifecycle event information of the virtual infrastructure segment.

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