364 results about "Optical networking" patented technology

The invention relates to the technical field of optical network operation and maintenance, and particularly provides an optical network fault prediction method and system based on MEMS characteristic embedding and digital twinning, and the method comprises the steps: collecting multi-physics field coupling parameters of optical network operation in real time through an MEMS multi-physics field coupling sensing unit which is disposed at an optical network key node and is embedded in a physical layer device; constructing an optical network cross-scale digital twin, inputting parameters to realize real-time synchronization and fault rehearsal of a physical entity and a virtual mirror image, and outputting a rehearsal result; constructing a fault prediction model based on an optical network physical mechanism, inputting parameters and rehearsal results to complete feature fusion and trend analysis, and outputting a fault prediction result; an intervention strategy is generated and subjected to twinborn virtual simulation verification; and after the verification is passed, driving the physical layer to execute intervention, and feeding back effect data to dynamically update twin model parameters. A closed loop of perception, modeling, prediction, intervention and feedback is formed, and the problems of prediction lag and low operation and maintenance efficiency in the prior art are solved.

The invention relates to a resource allocation method and system for dynamic load balancing of a data center elastic optical network, and belongs to the technical field of communication. Comprising the following steps: initializing data center elastic optical network parameters, and generating a connection request; judging whether the residual computing power resources of the source node and the destination node meet the request requirement or not, if so, calculating K working paths, selecting the shortest path, calculating the number of required spectrum slots, and judging whether the paths have residual spectrum resources or not; if yes, layered traffic grooming evaluation parameters are calculated, and the optimal spectrum layer is selected for grooming traffic; if not, selecting the highest-price modulation format; judging whether bandwidth and optical channel resources on the path are enough, if so, allocating spectrum resources, otherwise, returning to select the next shortest path; judging whether the spectrum resources meet constraint conditions or not, if yes, allocating computing power resources, and requesting successfully; if not, returning to reselect the path; and after success, updating the network transmission path weight. According to the invention, the network resource waste and blocking rate are effectively reduced, and the optical network energy consumption is reduced.

The invention discloses an optical network dynamic resource allocation method fused with an AI large model, which relates to the technical field of real-time scheduling of network resources, and comprises the following steps: constructing a service prediction model based on terminal behavior characteristics, calculating bandwidth sensitivity Bs and burst probability Pt, generating priority weight Wp, and improving burst service scheduling response; the T-CONT allocation rate and period are adjusted in a self-adaptive mode through a resource allocation efficiency function Ef and a buffer area demand index Bh, and priority scheduling of key services is guaranteed; the scheduling pressure is judged by introducing double thresholds of a signaling overhead index So and a network congestion degree Oc, AI reestimation and resource reallocation are triggered when abnormity occurs, and meanwhile, a bandwidth recovery parameter Br is recorded to optimize a subsequent strategy, so that minute-level intelligent scheduling and resource utilization maximization are realized.

The present application relates to the technical field of network management and relates to an all-optical networking device control method, system and apparatus, and a communication device, a storage medium and a computer program product. The method comprises: in response to determining, on the basis of a first release message of a target device and a second release message of a master device, that the target device satisfies a preset legitimacy condition, determining location information of the target device in the network hierarchy of all-optical networking, wherein the first release message is acquired on the basis of a sub-level interface in a communication bus, and the second release message is acquired on the basis of a master-level interface in the communication bus; and on the basis of the communication bus and the location information of the target device in the network hierarchy of all-optical networking, sending a target control policy to the target device.

The invention discloses a hot patch management method in a passive optical network system, a storage medium and an electronic device, in a Linux system, a patch management process running in a user mode and a patch management unit running in a kernel mode cooperatively execute, and the method comprises the steps that after the patch management process completes loading of a patch pack, the patch pack is loaded in the user mode; acquiring a patch function address and an original function address in the patch pack to obtain a corresponding relation, and configuring the corresponding relation to a patch management unit; when the original function is called, the original function determines to execute the original function logic or jump to the address indicated by the hook parameter by judging the value of the hook parameter; and the patch management unit registers a corresponding probe for each patch function according to the corresponding relationship so as to trigger a processing function of the probe to execute an operation of modifying the value of the hook parameter into a corresponding patch function address before the original function is executed, so that an execution process is skipped to the patch function when the original function is called, and the original function is called. And managing the function-level hotfix of the kernel mode and the user mode in the same framework.

The invention discloses a dumb resource management system automatic test method, system, device, medium and product, and belongs to the technical field of optical network communication test.The method comprises the steps that configuration information of passive dumb resources is obtained according to a passive dumb resource management system, and a relation graph G = (V, E) of the passive dumb resources is constructed; based on a predefined state machine model, controlling a test process to be automatically switched among a plurality of preset states so as to execute a full-process test from passive dummy resource data preparation to optical path verification; wherein after at least one non-terminated preset state is experienced in the test process, automatic verification is carried out based on the relation graph, and an automatic verification result is used as a trigger condition of state transition of the state machine model and a judgment basis of a whole-process test result. According to the invention, efficient, comprehensive and accurate automatic testing of the optical network passive dumb resource management system with extremely complex service logic is realized.

The invention provides a system, a communication device, an optical module, a method and an optical network, which are used for providing a channel-level control scheme for a power consumption mode of the optical module and are beneficial to improving the fine degree of power consumption control of the optical module by a host. Therefore, the host can configure the power consumption mode of the optical module into the power consumption mode which meets the network flow requirement and has the lowest power consumption, and the overall power consumption of the system is reduced.

The invention relates to a virtual network mapping method based on double-agent reinforcement learning in a space division multiplexing elastic optical network, belongs to the technical field of communication, and aims to solve the problems of multidimensional resource allocation complexity, fiber core crosstalk and spectrum fragmentation in the space division multiplexing elastic optical network. According to the technical scheme, collaborative optimization mapping is carried out on virtual network requests by setting a link fiber core mapping agent and a frequency spectrum mapping agent, and the collaborative optimization mapping comprises the steps of initializing an underlying optical network topology and a virtual network topology, sorting virtual network sets according to the total bandwidth of the requests, embedding virtual links in a descending order, and executing physical node embedding and path searching. And the intelligent agent selects a link fiber core and spectrum allocation based on the network state feature matrix, and a model is trained through a reward mechanism to realize efficient resource matching. The technical effects are that the real-time performance and efficiency of virtual network mapping are obviously improved, the service blocking rate is reduced, the spectrum resource utilization rate is optimized, and the overall load capacity of the network is enhanced.

The invention provides a network topology relation graph dynamic generation method, which belongs to the technical field of network topology, and comprises the following steps: starting an improved Tarjan strong connectivity component algorithm in each subnet partition to carry out loop detection, executing distributed loop verification on cross-subnet boundary nodes, collecting ARP table entries, routing table entries, OpenFlow flow tables and virtualization platform interface data, and sending the ARP table entries, the routing table entries, the OpenFlow flow tables and the virtualization platform interface data to each subnet partition; the method comprises the following steps: performing power spectrum analysis on an optical power monitoring point on optical network equipment to identify a wavelength channel occupancy state, reconstructing a wavelength routing path of a DWDM system, and performing two-stage submission on topological data acquired by distributed detection nodes by adopting a causal consistency protocol to synchronously generate a global unified network topological relation graph; the technical problems that the incremental updating efficiency is low and the cross-layer mapping relation is difficult to reconstruct in real time when the network topology dynamically changes are solved.

The invention provides a data forwarding method based on a vehicle-mounted passive optical network and a related device, and relates to the technical field of vehicle communication. In the data forwarding method, the first ONU gateway aggregates and packages the received multiple frames of messages into the same uplink GEM frame, so that the multiple frames of messages share the same GEM frame header, the frame header overhead in the low-speed data transmission process is effectively reduced, and the bandwidth utilization rate of the vehicle-mounted PON network is improved. Meanwhile, message grouping, uplink GEM frame packaging and uplink burst frame coding are directly completed through the first ONU gateway, the uplink burst frame is sent to the OLT, time delay and system resource consumption are reduced, the high real-time requirement of low-speed data (such as a sensor and a control signaling) in a vehicle-mounted scene is met, and therefore efficient and low-delay bearing of the low-speed data on a vehicle-mounted PON network is achieved.

The invention belongs to the technical field of deterministic transmission, and particularly relates to a deterministic transmission method for a time division multiplexing passive optical network in computing power-power cooperative communication network networking, which comprises the following steps of: acquiring and identifying all time delay sensitive flows accessed to a TDM-PON (Time Division Multiplexing-Passive Optical Network), and pre-classifying periodic flows; clustering the similar periodic flow to form a shaping flow, and distributing a shaping window; calculating the least common multiple of all shaping flow periods as a super period; in a super cycle, an integer linear programming model is adopted to complete initial optimization time window distribution; carrying out secondary sorting and conflict elimination on the overlapped transmission windows, and scheduling the shaping stream by using the transmission windows after secondary optimization; the non-periodic flow is scheduled by using the idle time slot in the over-period; and continuously multiplexing a super-cycle scheduling scheme to complete a deterministic transmission process. According to the invention, high scheduling success rate, millisecond-level deterministic time delay and microsecond-level jitter control of large-scale periodic services are realized.

A system for activating multi-rate optical network units (ONUs) includes an optical network having an optical line terminal (OLT) optically coupled to a plurality of ONUs, including one or more multi-rate ONUs configured to support multiple upstream rates. During discovery when other ONUs are permitted to transmit in the same quiet window, a multi-rate ONU that supports a higher rate is instead configured to send a discovery response at a sufficiently low rate so as not to require training of an equalizer, thereby allowing for a short preamble for the discovery response. Thereafter, during a quiet window for ranging when only the multi-rate ONU will be transmitting to prevent data collisions, the multi-rate ONU is transitioned to a higher rate and transmits a message with a sufficiently long preamble to train an equalizer at the OLT.

The invention relates to an intelligent calculation center optical network optical path survivability-oriented air-ground cooperative unmanned aerial vehicle distributed optimization deployment method and system, and belongs to the technical field of optical communication network protection. The invention aims to solve the technical problems of long switching time delay, limited coverage and poor stability of a traditional single ground or air protection mechanism. According to the technical scheme, an air-ground cooperative protection architecture is constructed, and firstly, an integer linear programming model with the aim of minimizing the total cost of a system is established to carry out precise deployment optimization of unmanned aerial vehicle nodes; in order to improve the solving efficiency, a spectral clustering and K-means clustering-based heuristic algorithm is designed to realize rapid intelligent division of the unmanned aerial vehicle service domain; the deployed unmanned aerial vehicle cluster adopts a master-slave architecture and has a failover mechanism, and a temporary relay network can be quickly established when a ground optical path fails. According to the invention, the survivability and fault recovery efficiency of the optical network are effectively improved, and good balance between deployment cost and protection performance is realized.

Aspects of the subject disclosure may include, for example, determining a topology of a network, wherein the network includes a plurality of network elements (NEs) and at least one optical network-based fronthaul, at least one optical network-based midhaul, or combination thereof, for one or more routes associated with one or more of the plurality of NEs identified based on the topology, applying one or more sets of parameters for that route, obtaining data relating to the network based on the applying the one or more sets of parameters, training one or more AI models using the data, resulting in one or more trained AI models, and utilizing the one or more trained AI models to generate one or more predictions regarding spectral efficiency relating to the at least one optical network based fronthaul, the at least one optical network-based midhaul, or the combination thereof. Other embodiments are disclosed.

The invention provides a transmission optical path routing planning method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring an optical path planning request; based on the endpoint information and pre-stored optical network resource data, generating a plurality of candidate optical paths meeting connectivity requirements among service endpoints; constructing a multi-target fitness function according to an optimization target in the routing strategy, and determining a fitness value of each candidate light path based on the multi-target fitness function; and selecting a target light path from the plurality of candidate light paths. According to the method, the multi-target fitness function is constructed based on the optimization targets in the routing strategy, and the fitness value of each candidate light path is determined based on the multi-target fitness function, so that the comprehensive performance of the plurality of candidate light paths under the plurality of mutually restricted optimization targets is objectively evaluated; therefore, the optimal target light path can be selected from the plurality of candidate light paths based on the fitness value, and the automation level and decision-making efficiency of light path planning are improved.

A node for a multi-plane optical network is optically connectable, for each node of at least two other nodes of the multi-plane optical network through respectively two or more optical links to the other node. The node includes one or more wavelength selective switches (WSSs) having a set of ports. The node receives, with a port, an optical signal from an optical link of a first other node. The one or more WSSs provide at least a frequency sub-band of the optical signal from the port through another port to another optical link of the first other node or a second other node. The optical link and the another optical link are associated with one plane and one other plane of the multi-plane optical network, respectively.

A method for validating service continuity of deployed fiber serving terminals in a passive optical network includes broadcasting, from a central office of a passive optical network, a beacon signal to a plurality of beacon responders, wherein each beacon responder of the plurality of beacon responders is connected to a respective fiber serving terminal of a plurality of fiber serving terminals of the passive optical network, changing a counter in response to each response message that is received from the plurality of beacon responders in response to the beacon signal, and generating a report indicating which fiber serving terminals of the plurality of fiber serving terminals are functioning properly and which fiber serving terminals of the plurality of fiber serving terminals are not functioning properly, based on whether a count of the counter is equal to an expected number of responses, after an expiration of a predefined period of time.

An optical path design device includes: a search unit configured to search for one or more route possibilities from a start point to an end point in an optical network including one or more transmission paths as links and a plurality of node devices as nodes on the basis of topology information of the optical network, information on the start point, and information on the end point; a time derivation unit configured to derive available time which is time at which a frequency band including one or more frequency slots becomes available for communication for each of the transmission paths or the node devices included in the route; and a design unit configured to select the route from the one or more route possibilities that have been searched for on the basis of the available time derived for each of the transmission paths or the node devices and select a frequency band of an optical signal to be transmitted through an optical path in the selected route.

The invention relates to the technical field of optical fiber communication, and discloses a fault positioning device and method for a passive optical network, the device mainly comprises an optical link terminal, an optical distribution network and an optical network unit, the optical link terminal comprises a communication light generation unit, a detection light generation unit, a first wavelength division multiplexer and a fault positioning unit, the optical distribution network comprises a second wavelength division multiplexer, a first optical splitter, a second optical splitter, a plurality of optical encoders and a plurality of third wavelength division multiplexers, the second wavelength division multiplexer is used for separating the mixed light into communication optical signals and detection optical signals, and the first optical splitter is used for distributing the communication optical signals; a plurality of output ends of the second optical splitter are respectively connected to input ends of a plurality of optical encoders, each optical encoder performs time domain encoding on the detection optical signal, and an output end of each optical encoder is connected with a second input end of the third wavelength division multiplexer. According to the invention, high-efficiency, accurate and intelligent positioning of the high-splitting-ratio passive optical network fault is realized.

This optical path design device (10) comprises: an optical path design unit (11A) that preferentially executes one among a route adjustment unit (11B) for designing a new optical path changed from a shortest route to another accommodation route when a designated wavelength is not available on the shortest route connecting both end points in the shortest manner, and a wavelength adjustment unit (11C) for adjusting the use of the designated wavelength between a new optical path and an existing optical path to design the new optical path; and an output unit (12B) that outputs the execution result of the optical path design unit (11A) to each node of an optical NW (20) whereby the new optical path corresponding to an optical path setting request is created.

Optical networks and methods associated with optical networks for verifying network continuity. A method for verifying network continuity includes providing a fiber Bragg grating (FBG) device at a cable associated with a network, wherein the FBG device is configured to reflect a λ1 wavelength; sending an optical test signal into the cable from a location upstream of the FBG device, the optical test signal having a λ1 wavelength; and detecting a reflected signal associated with the λ1 wavelength to verify network connectivity to the FBG device and measure network insertion loss.

The utility model discloses shutter glasses and an image display system, and particularly relates to the field of three-dimensional display. The utility model aims to widen the application range of the shutter glasses. According to the specific scheme, the shutter glasses comprise a controller and two lenses. In the first wearing state, the first surface of the first lens is opposite to the left eye of the user, the third surface of the second lens is opposite to the right eye of the user, and the controller controls the switching time sequence of the first lens to be a first time sequence and the switching time sequence of the second lens to be a second time sequence. In the second wearing state, the second surface of the first lens is opposite to the right eye of the user, the fourth surface of the second lens is opposite to the left eye of the user, and the controller controls the switching time sequence of the first lens as the second time sequence and the switching time sequence of the second lens as the first time sequence. The shutter glasses and the display device may be interconnected through an optical network device in the FTTR. The shutter glasses are adapted to display devices for playing different 3D image sources. The shutter glasses are also adapted to display devices that emit light in different polarization directions.

A module for use in an optical network includes one or more elements concatenated to one another; and circuitry configured to receive and store calibration data associated with the one or more elements, and transmit the calibration data to one or more processing devices for modeling of the module in a link in the optical network. The one or more elements can include gain blocks for optical amplification. The calibration data can be determined at manufacturing via testing. The calibration data can relate to determining gain and noise transfer functions of the module at various operating points.

The invention discloses an optical network fault detection system based on artificial intelligence, which belongs to the technical field of optical network intelligent operation and maintenance and comprises a data acquisition module, an intelligent fault detection module, an influence range evaluation module and a detection report generation module. According to the method, intelligent fault detection is carried out by adopting a multi-mode self-adaptive fault detection method, link operation data, equipment operation logs and network structure information are integrated, potential abnormal nodes are dynamically identified, the false alarm rate is reduced, faults possibly influencing network operation are found in advance, and quantifiable abnormal credibility scores are provided; the optical network fault multi-dimensional influence range evaluation method is adopted to perform influence range evaluation, on the basis of considering the network structure, the node abnormal degree and the service flow, nodes and links possibly affected by the fault are dynamically predicted, the fault influence range and the severity are quantified, a visual and operable decision basis is provided for operation and maintenance personnel, and the operation and maintenance efficiency is improved. Therefore, the fault diffusion risk is effectively reduced, and the network maintenance strategy is optimized.

This disclosure relates to the field of optical computing technology, and in particular to an intelligent optical computing nonlinear convolutional chip system, method, and architecture, comprising: an input spatiotemporal transformation module for processing an input one-dimensional matrix to generate a complex-weighted extended channel matrix; an input temporal encoding and nonlinear activation module for performing nonlinear activation and first information delay on the complex-weighted extended channel matrix to obtain a matrix; a one-dimensional convolution processing module for performing matrix multiplication on the first matrix to obtain a second matrix; an output temporal encoding and nonlinear activation module for performing nonlinear activation and second information delay on the second matrix to obtain a third matrix; and an output spatiotemporal transformation module for performing complex-weighted channel fusion operation on the third matrix to obtain an output one-dimensional matrix. This disclosure avoids the use of photoelectric conversion and off-chip devices, realizing an all-optical nonlinear convolutional system that can be cascaded to form a large-scale deep all-optical network with high integration, high speed, and strong scalability.

This application provides a method, apparatus, electronic device, and storage medium for configuring wavelength division multiplexing (WDM) equipment in an optical network. The method is applied to an optical network system, which includes electrical layer devices and optical layer devices. The method includes: adjusting the optical module laser on the electrical layer device so that the output optical power of the Optical Module Alternator (OBA) at the starting node does not exceed a preset power threshold; controlling the input and output optical power of the OBAs in intermediate nodes to not exceed preset power thresholds; adjusting the pre-VOA of the Optical Module Alternator (OPA) in the intermediate nodes so that the cross-segment loss is not lower than a preset cross-segment loss threshold, and the intra-node attenuation of each intermediate node is not lower than a preset intra-node attenuation threshold; controlling the output optical signal-to-noise ratio (SNR) of the OPAs in the intermediate nodes to not be lower than a preset SNR threshold; and configuring downscan based on the terminal node. The technical solution of this application can realize wavelength division multiplexing in optical networks, meeting the service scheduling requirements of high-bandwidth, point-to-point data center interconnection.

The invention provides an intelligent capability assessment method and device for an optical network, and solves the problem that the field of the optical network is lack of a standardized intelligent capability assessment system. The invention discloses an optical network intelligent capability assessment method. The method comprises the following steps: acquiring a preset assessment parameter set of an assessment target; determining at least one evaluation capability domain of the evaluation target; and calculating preset evaluation parameters corresponding to the evaluation indexes according to a measurement method, comparing the preset evaluation parameters with a preset capability evaluation standard, and determining an evaluation result. The invention also comprises a device for realizing the intelligent capability evaluation method of the optical network. According to the invention, the evaluation index and method of each capability domain are defined, and the comprehensive quantitative evaluation of the intelligent capability of the optical network management and control system and the network element equipment is realized.

The application discloses a registration method and device of an optical communication network, and relates to the technical field of optical communication. A discovery window opened by an OLT is determined according to the distance between an optical relay device and a next-level optical network device of the optical relay device, and the OLT has configured specified BWmap information for the optical relay device, so that the OLT does not need to open a larger discovery window during the registration process of the next-level optical network device of the optical relay device, and only needs to open a discovery window suitable for the next-level optical network device. Therefore, the OLT only needs to open a smaller discovery window during the discovery process of an SN serial number, the time slot corresponding to the smaller discovery window is reduced, the service interruption time of other optical network devices in communication with the OLT is shortened, the uplink delay jitter of the optical communication network is reduced, and the communication stability of the optical communication network is improved.

The application relates to the technical field of communication, and provides a proxy routing method and system. The method comprises the following steps: establishing a connection with an optical network client based on a connection request sent by the optical network client; the connection request carries routing information of a user client; obtaining a target source IP according to the routing information; establishing a connection with a target server based on the target source IP; and routing to-be-accelerated data to a target GRE tunnel according to the target source IP, so that the to-be-accelerated data enters an acceleration access point through the target GRE tunnel, and then is routed to a target acceleration link through the acceleration access point. In the proxy routing method provided by the application, the to-be-accelerated data is transmitted from a proxy server cluster to an acceleration access point through a link most suitable for service requirements, and then is transmitted from the acceleration access point to a target acceleration link, and finally reaches a target server; the link is most suitable for user service requirements, and thus the quality is good, and the problems of packet loss and delay in the transmission process of the to-be-accelerated data are effectively avoided.

The application provides a communication service processing method and device, network equipment and a storage medium. The method comprises the following steps: if the bandwidth of the IP network does not meet the bandwidth requirement of the to-be-processed service set, planning each to-be-processed service through a virtual IP path in an optical network and a backup IP path set of the to-be-processed service set in the IP network; adjusting the virtual IP path and continuously planning each to-be-processed service until all to-be-processed services in the to-be-processed service set are planned or the total bandwidth of the to-be-processed services successfully planned in the to-be-processed service set remains unchanged. The technical scheme provided by the embodiment of the application plans each to-be-processed service according to the backup IP path of the to-be-processed service and the virtual IP path in the optical network, and continuously adjusts the virtual IP path until the expected requirement is met, thereby improving the bandwidth utilization rate of the IP network and the optical network and improving the service processing capacity.