4241results about "Multiplex system selection arrangements" patented technology

The invention discloses an optical transmission network hidden danger detection method and device and a computer program product, which can realize dynamic adjustment of differentiated bandwidth requirements by acquiring optical network state information in real time, evaluating service priority and establishing an optical channel resource allocation model. And when a topology anomaly is detected, constructing a service quality evaluation model by using a long-short-term memory neural network, and quantitatively analyzing the influence of the anomaly on the service. When a fault occurs, distributed link fault detection and a fault diagnosis engine based on a decision tree are adopted, and fault hidden dangers are quickly positioned and classified. And then, through an elastic recovery mechanism oriented to service sensitivity, the service quality level of a standby optical path is adjusted, and an optical layer topology connection relationship is optimized. According to the method, the resource utilization efficiency, the fault recovery capability and the service quality of the optical network are remarkably improved, and an innovative solution is provided for intelligent optical network management.

The invention discloses an optical transmission cross-domain service real-time configuration method, an optical transmission cross-domain service real-time configuration device and a computer program product, and aims to realize unified planning and dynamic output of cross-domain service end-to-end service quality targets by constructing a multi-domain quality strategy fusion model and integrating service quality strategies and resource states of different network domains. By collecting performance data of each domain in real time and combining with a time sequence analysis algorithm, the network performance degradation trend can be accurately identified; based on quality propagation path analysis of a cross-domain service topological relation graph, a quality degradation root can be quickly positioned, the influence range of the quality degradation root can be quantified, and the service quality stability of a key service in a resource limited scene is ensured; by establishing a cross-domain service quality mapping system, heterogeneous network performance parameters are mapped to end-to-end service quality indexes, and the cross-domain collaborative operation and maintenance efficiency is greatly improved. A continuous iterative optimization mechanism driven by reinforcement learning is adopted, adaptive adjustment of network resource allocation and a routing strategy is realized, and a cross-domain service quality dynamic optimization closed loop is formed.

The invention discloses a distributed computing task non-perception migration method and system under optical fiber network interruption. The distributed computing task non-perception migration method comprises the following steps: constructing a distributed task migration system and an output system architecture; collecting network state indexes, constructing a network topological graph, and analyzing the state of an optical fiber link for fault prediction; obtaining a calculation task operation state, establishing a sub-task mapping relation, constructing a directed dependency graph, and generating a state snapshot; analyzing resource requirements, reserving standby resources, and deploying a distributed cache system; analyzing a fault influence range, extracting an influenced calculation sub-graph, and selecting a migration target node; in a target node preloading environment, reconstructing an execution context, and redirecting a communication path; and setting a data change capture mechanism, synchronizing incremental data and executing consistency verification. According to the method, non-perception migration of the computing tasks is realized, task continuity and data consistency are guaranteed, and the reliability of the distributed computing system in an optical fiber network fault scene is improved.

The invention relates to the technical field of hydropower engineering, and discloses a single-core self-healing type looped network networking method and system, and the method comprises the steps: dividing a whole network into a plurality of sub looped networks; each sub-ring network operates independently; the light switch in each sub-ring network adopts an A / B end connection mode; reversely connecting the B end of the last measuring point to the A end of the initial measuring station by using an optical fiber to form a closed physical structure; configuring a protocol on the switch, and controlling a data flow path through the protocol; different sub-ring networks are connected through RJ45 ports, and a CAT5E shielded twisted pair or an Ethernet interface is used; when a certain node or link fails, the protocol automatically triggers a switching mechanism; the master station optical transceiver monitors the states of all nodes in real time and displays fault points through a network management interface. The system comprises a sub-ring network module, a control data flow module and a fault point display module. The problems that a traditional networking method of hydropower engineering is poor in reliability, and self-healing cannot be achieved after an intermediate node is disconnected are successfully solved.

The invention discloses a multi-mode optical signal transmission method and device, electronic equipment and a storage medium, and relates to the technical field of computers.The transmitted data stream is divided into a control signal and a data signal, the control signal is a visible light wave band, the data signal is an infrared wave band, and the control signal and the data signal are combined to a single multi-core optical fiber through a combiner; the optical network controller allocates subcarrier resources as required according to the change of network flow in a spectrum dynamic allocation mode to perform data transmission, so that the subcarrier resource allocation adapted to the change of network flow improves the dynamic adaptability, and the allocation of the subcarrier resources as required improves the equipment cooperation efficiency, and in the data transmission process, the data transmission efficiency is improved. Clock synchronization and signal encryption are realized through a quantum key distribution mode, and the security is improved.

The invention discloses an optical cable topology visualization monitoring analysis system and method, and relates to the technical field of optical cable monitoring. According to the optical cable topology visual monitoring analysis system and method, the complex dependency relationship between optical cable network equipment is accurately captured by using the graph neural network, and the wavelength division multiplexing, OTDR test and optical power measurement technologies are fused, so that online monitoring without interrupting service communication is realized, the real-time performance and efficiency of monitoring are improved, the positioning precision of optical cable broken fibers can be improved, and the optical cable topology visual monitoring analysis system and method are suitable for popularization and application. Through new and old OTDR curve comparison and big data analysis, optical fiber aging and degradation trends are pre-judged in advance, accurate active operation and maintenance are realized, the probability of optical cable fault occurrence is reduced, the reliability and stability of a network are improved, and by cooperating with visual display of a complex power grid optical cable map, the method has the advantages of high accuracy and high reliability. The topological structure and the geographic position of the optical cable are visually displayed by fusing multiple levels, clear visual information is provided for operation and maintenance personnel, and management and decision making are facilitated.

A redundancy link includes a first optical splitter and a second optical splitter. The first optical splitter includes (i) a first hub-side port that optically couples to a first optical line terminal, a first hub-side failover-mode port, (iii) a first plurality of node-side splitter-ports each optically coupled to the first hub-side port and the first hub-side failover-mode port, (iii) a first failover-mode port coupled to the first hub-side port. The second optical splitter includes (i) a second hub-side port that optically couples to a second optical line terminal, a second hub-side failover-mode port optically coupled to the first failover-mode port, (iii) a second plurality of node-side splitter-ports each optically coupled to the second hub-side port and the second hub-side failover-mode port, (iii) a second failover-mode port coupled to the second hub-side port.

The invention relates to the field of broadband alarm, in particular to a broadband user-based optical modem power failure and fiber break alarm real-time monitoring method, which comprises the following steps of: S1, monitoring and recording the online state, the light attenuation level, the flow information, the packet loss rate, the network delay and the log of an optical modem under OLT (Optical Line Terminal) equipment in real time; s2, automatically identifying an abnormal mode and a potential fault according to a model established by a machine learning algorithm and a deep learning algorithm; s3, automatically diagnosing problem reasons according to the collected data, and optimizing the knowledge base in combination with an expert system; s4, performing deep mining and analysis on historical fault data, and predicting a potential fault risk based on the historical data and a real-time monitoring result; and S5, continuously updating and optimizing a fault detection and diagnosis model through a self-learning algorithm model, and uniformly monitoring and managing all data acquisition, analysis and alarm modules. The fault detection accuracy and timeliness can be improved, and potential fault prediction and preventive maintenance are realized.

The invention provides a dynamic wavelength allocation method based on DCI wavelength division II type equipment. The method comprises the following steps: acquiring an occupation state and a transmission quality index of each wavelength channel of a current network; establishing a wavelength channel quality evaluation model, and scoring each wavelength channel according to the transmission quality index of each wavelength channel of the network; according to the bandwidth requirement, the priority and the QoS requirement of the service request, generating a traffic characteristic matrix containing the delay sensitivity and the bandwidth requirement through a traffic prediction algorithm; based on a network state and the traffic characteristic matrix, through resource availability calculation and path quality evaluation, forming an allocable wavelength resource pool and a quality score thereof; for the allocatable wavelength resource pool, generating an optimal wavelength allocation scheme by adopting an improved heuristic algorithm and comprehensively considering the resource utilization rate, the signal quality and the service priority; and according to the performance feedback of the optimal wavelength allocation result and the network state change, continuous optimization of wavelength allocation is realized through a self-adaptive adjustment mechanism. The method can effectively deal with the dynamic flow change in the DCI network, improve the resource utilization rate, ensure the signal quality and meet the QoS requirement of the service, thereby providing an efficient and reliable wavelength allocation solution for the data center interconnection network.

The invention relates to the technical field of passive optical networks, in particular to an all-optical Internet of Things access terminal based on a PON network, the terminal carries a control system, and the system comprises a hardware interface dynamic adaptation module, a protocol feature recognition module, an optical wavelength offset control module, an optical transmission bandwidth distribution module and an optical signal compensation module. According to the invention, through dynamic linkage of physical layer parameters of the optical network and the serial interface, signal attenuation of the protocol conversion equipment is eliminated, the access compatibility of the industrial terminal is improved, a control instruction and a conventional data stream are accurately distinguished based on a multi-dimensional protocol feature analysis mechanism, and the risk of misjudgment is reduced; a silent time slot dynamic mapping mechanism realizes fast reconstruction of burst traffic bandwidth, breaks through the bottleneck of traditional bandwidth allocation response, suppresses multi-wavelength channel interference through cooperative adjustment of optical power and phase, maintains low-delay and high-reliability transmission characteristics, and optimizes the whole process to form a closed-loop control link from a physical layer to a transmission layer. And the real-time control requirement of the industrial internet of things is met.

In the present disclosure a method and a system for generating an Optical Transport Network (OTN) DT network based on vertical federated learning are disclosed. The method includes: performing homomorphic encryption on a local fault root cause identifier to obtain an encrypted fault root cause identifier; receiving all encrypted alarm sample sequences corresponding to the encrypted fault root cause identifier; generating a single-domain training set according to the encrypted fault root cause identifier and the encrypted alarm sample sequences; training the local cross-domain fault root cause identification model according to the single-domain training set to obtain a model parameter update amount of the cross-domain fault root cause identification model; and reporting the model parameter update amount to the multi-domain orchestration system.

The invention provides an optical network communication method and a communication device, the method is applied to an optical fiber network, the optical fiber network comprises a master device and at least one slave device, and the at least one slave device comprises a first slave device. Wherein in the initialization phase, after receiving the authentication encryption capability of the slave device, the master device can indicate a determined authentication encryption mode (e.g., a first authentication encryption mode) to the slave device, so that the authentication encryption capability of the slave device is enhanced in a subsequent process (e.g., a roaming parameter configuration process). The master device does not need to configure security-related parameters such as an authentication encryption mode for the slave device, so that the configuration efficiency is improved, and the configuration overhead is saved.

A network device may receive one or more first user inputs in a security gateway creation user interface (UI) provided by a controller. A network device may query, by the controller, the CSP using Application Programming Interfaces (APIs) to retrieve information about applications within the at least one virtualized network environment including any services deployed within the at least one virtualized network environment. A network device may present a security status user interface that identifies the at least one virtualized network environment applications configured in the CSP account and a respective status indicating whether the at least one virtualized network environment is protected by the security gateway. A network device may receive a second user input within the security status user interface, the second user input is effective to enable protection of the at least one virtualized network environment by the security gateway.

The invention relates to an optical data network (10-1) for connecting a plurality of data network nodes (N1-1, N2-1, N3-1, N4-1). The optical data network (10-1) comprises: i) the plurality of data network nodes (N1-1, N2-1, N3-1, N4-1), the data (99) comprising data packets (99p), wherein each data network node (N1-1, N2-1, N3-1, N4-1) is provided with a network interface (Nl); and ii) a data connection network (100-1) comprising at least one data switch (SW) and a plurality of optical connections (50) for allowing establishment of data links (DL1, DL2) between pairs of said plurality of data network nodes (N1-1, N2-1, N3-1, N4-1). At least one of the at least one data switch (SW) is a smart data switch (SSW) comprising at least one packet switch (PS, EPS) and at least one circuit switch (CS, OCS), At least two network interfaces are smart network interfaces (SN, SNC) comprising a data classifier (25) configured for classifying the data packets (99p) into at least two traffic classes including first traffic class (D1) and a second traffic class (D2) in accordance with a classification scheme. The smart data switch (SSW) and the network interfaces (SN, SNC) are configured to route the data packets (99p) of the first traffic class (D1) to the packet switch (PS, EPS) and to route the data packets (99p) of the second traffic class (D2) to the circuit switch (CS, OCS).

Techniques for powering a multi-unit optical network terminal (MU-ONT) located outside of a multi-unit building include obtaining reverse power from Power-over-Ethernet (PoE) lines connecting the MU-ONT to terminal units (TUs) or customer premises equipments (CPEs) disposed inside the building. Reverse power may be injected into the PoE lines at the TUs, for example. Via an MU-ONT reverse powering device, the reverse power may be separated from services data provided via the PoE lines, and the services data may be delivered between the TUs and a Passive Optical Network (PON) via the MU-ONT. The reverse power obtained from the PoE lines may be aggregated to provide the MU-ONT with power commensurate with its power load. In some embodiments, the MU-ONT power load may be shared or distributed across PoE lines in a passive or actively controlled manner based on variations in the MU-ONT load and / or respective characteristics of the PoE lines.

The invention provides an optical communication flow dynamic wavelength allocation optimization method and system, computer equipment and a storage medium, flow monitoring modules are arranged at nodes of an optical communication network, flow data of different service types at the nodes are acquired, a central control unit acquires existing wavelength resource information in the optical communication network, and the optimal wavelength allocation of the optical communication flow is realized. Evaluating whether the current wavelength resource allocation is reasonable; the central control unit sends the generated dynamic wavelength allocation mechanism to each node of the optical communication network, and each node adjusts the existing wavelength allocation through the received mechanism; and continuing to collect data of different services at each node, transmitting the collected data to the central control unit for evaluation, and if the preset target is not reached, executing the above steps again. The method has the advantages of balancing the resource distribution of the whole network, avoiding local congestion, improving the overall resource utilization rate, remarkably reducing the problems of packet loss rate and delay exceeding caused by signal crosstalk, reducing the probability of fragment generation in the future and avoiding single-point congestion.

The invention relates to an FTTR bandwidth management method based on a PON, and the method comprises the steps: dividing a to-be-managed region into a plurality of sub-regions according to the demands, distributing independent IP sub-networks, predicting the service of each IP sub-network, carrying out the pre-distribution, collecting the ONU flow data in real time, carrying out the feature extraction, obtaining the flow change features, dynamically adjusting the bandwidth distribution strategies of different slices, and constructing a double-layer dynamic weight model. Each network slice corresponds to an independent weight adjustment strategy, a dynamic time slot distribution field is inserted in an MPCP protocol, time slot distribution is carried out according to weight values of different network slices, burst traffic is preprocessed, demand prediction values are reported according to network slice classification, burst traffic information and traffic feature data are integrated, and the data are distributed according to the burst traffic information and the traffic feature data. And dynamically allocating bandwidth to each terminal device in the FTTR network. FTTR network bandwidth fine and dynamic management is achieved through multi-dimensional data processing, the network resource utilization rate and the user service quality are effectively improved, and the transmission requirements of diversified services are met.

A management method, device and system for sub-gateways in an FTTR and a storage medium, the method is applied to a main gateway, at least one sub-gateway including a target sub-gateway is hung under the main gateway, the main gateway is connected with an optical line terminal (OLT), a mapping table of the main gateway records a corresponding relationship among the target sub-gateway, a lower ONU ID and an upper ONU ID, and the target sub-gateway is connected with the lower ONU ID and the upper ONU ID. The method comprises the following steps: acquiring a first GEM frame; according to the downlink ONU ID, a second frame header of the first GEM frame is determined, a new first GEM frame is obtained, the new first GEM frame is sent, and the new first GEM frame carries the second frame header, the first frame header and a management request message marked by the uplink ONU ID; receiving a second GEM frame returned by the target sub-gateway for the new first GEM frame; and determining a fourth frame header corresponding to the second GEM frame according to the uplink ONU ID, generating a new second GEM frame, and sending the new second GEM frame to the OLT, thereby achieving the purpose of managing the target sub-gateway by the OLT.

The invention provides a data prediction method, device and equipment, and the method comprises the steps: obtaining a first data sequence of a target optical module in a historical time interval, and the first data sequence comprises the real operation data of a plurality of time points in the historical time interval; the real operation data comprises the voltage of the target optical module and / or the number of port wrong packets, and the real operation data further comprises at least one of the temperature, the bias current, the receiving power and the sending power corresponding to each channel of the target optical module; determining the type of a target optical module based on the number of target channels of the target optical module, and selecting a target prediction model corresponding to the type of the target optical module from all prediction models; and inputting the first data sequence into the target prediction model to obtain an initial prediction result, and determining a target prediction result based on the initial prediction result. According to the technical scheme, the method has the characteristics of high prediction efficiency, high prediction accuracy and the like.

The invention relates to the technical field of signal testing, in particular to a receiving end testing device of an OLT optical module. Comprising at least four independent error code test units capable of working in parallel, and is used for generating a high-speed test signal and analyzing the error rate of a receiving end; a burst signal control module which is connected with the multi-channel continuous error code test module and is used for dynamically generating a burst control signal, a reset signal and a trigger signal corresponding to each channel and realizing synchronous calibration of the multi-channel error code test through sequential control; and the protocol adaptive module is embedded in the burst signal control module and automatically configures a burst period, an optical power threshold value and a reset time sequence according to a GPON / XGPON / XGSPON protocol. The receiving end test equipment of the OLT optical module can realize efficient test and is relatively low in test cost.

The invention discloses a communication method between graphics processors, a product, equipment and a medium, relates to the technical field of high-performance calculation and artificial intelligence acceleration, and is applied to a stand-alone system comprising a plurality of graphics processors and a central photoelectric hybrid switching chip constructed based on interconnection of an electric switching matrix and an optical switching matrix. The graphics processor is connected with the central photoelectric hybrid switching chip through an optical link and an electric link; the method comprises the following steps: performing data classification on to-be-transmitted data of a source graphics processor; if the to-be-transmitted data is a control flow, the source graphics processor is controlled to send the to-be-transmitted data to an electric switching matrix through an electric link, and then the to-be-transmitted data is routed to a target graphics processor in the graphics processors; and if the to-be-transmitted data is a data stream, the source graphics processor is controlled to send the to-be-transmitted data to the optical switching matrix through the optical link, and then the to-be-transmitted data is routed to the target graphics processor. Interconnection between graphics processors is optimized to improve communication efficiency between graphics processors.

The invention discloses a PON-based multi-protocol communication method and device, and the method comprises the steps: distributing a corresponding internal scheduling time slot to each network protocol processing unit for data uploading to each network protocol processing unit when a data processing module detects that the network protocol processing units connected with each field bus device have to-be-uploaded service data; and when one internal scheduling time slot is used up, interrupting the uploading of the service data until the next internal scheduling time slot allocated to the internal scheduling time slot is recovered from interrupting the uploading of the data. And the PON module monitors a global scheduling time slot allocation instruction issued by the optical line terminal in real time, converts an uploaded data frame into an electric signal, transmits the electric signal to the optical module through an internal link, converts the electric signal into an optical signal through the optical module in an allocated global scheduling time slot, and uploads the optical signal to the optical line terminal through an optical distribution network. Real-time performance and orderliness of transmission of service data in multiple field bus devices in a PON network are achieved, the requirement of industrial communication for data transmission is met, and transmission resource distribution is optimized.

The invention relates to the technical field of optical fiber communication, in particular to a method and a system for realizing optical fiber interconnection transmission by a high-speed serial transceiver based on an FPGA (Field Programmable Gate Array). Constructing a link feature baseline and combining with a multi-dimensional weighted quality index to drive an improved particle swarm algorithm to dynamically adjust a pre-emphasis coefficient and a receiving equalization parameter of the transceiver; signal jitter characteristics are extracted, clock data are dynamically adjusted based on the jitter characteristics and the bit error rate to recover the loop bandwidth, a forward error correction mode is dynamically switched through hysteresis threshold logic, and time delay and error correction capability are balanced; and continuously updating the baseline parameters through a closed-loop feedback mechanism to realize real-time adjustment and optimization of the quality of the optical fiber communication link.

The invention discloses a roaming method and device, relates to the technical field of communication, and is used for providing a processing flow of master and slave optical network units. The method comprises the following steps: the MFU determines a target SFU for the station according to the roaming decision information; and the MFU sends a roaming start indication message to the target SFU, wherein the roaming start indication message is used for indicating to start roaming processing for the station.

The invention provides an optical transmission system compatible with ROF and PON, which comprises an optical line terminal, an analog signal processing unit, an optical distribution network unit and a plurality of user terminals, and is characterized in that the optical line terminal is connected with the optical distribution network unit and is used for sending digital signals to the optical distribution network unit; the analog signal processing unit is connected with the optical distribution network unit and is used for receiving and processing the analog input signal and sending the processed analog signal to the optical distribution network unit; the optical distribution network unit is used for receiving and mixing the digital signal and the analog signal to obtain a mixed signal; before the mixed signals are transmitted to the user terminals, the digital signals and the analog signals are split according to a plurality of preset user channels and then transmitted to each user terminal. The system is simple in architecture, engineering construction and engineering maintenance are convenient, and the wireless coverage system can be rapidly deployed by using the existing optical fiber network at present.

The invention provides a vehicle-mounted passive optical network area gateway and a protocol conversion method. The gateway comprises an interface module which comprises a plurality of communication interfaces, wherein the communication interfaces are used for receiving messages of a low-speed network protocol; the data processing module adopts an FPGA (Field Programmable Gate Array) core board and is used for receiving a message, extracting effective information from the message, packaging the effective information to obtain an Ethernet protocol frame and converting the Ethernet protocol frame into an SDU (Service Data Unit); and the ONU optical module is used for performing data link layer processing on the SDU to obtain an uplink FS burst frame, and performing physical layer processing on the uplink FS burst frame to obtain a burst mode optical signal frame. The gateway can realize data access of multiple paths of CAN nodes, LIN nodes and vehicle-mounted Ethernet nodes at the same time, meets the communication protocol conversion function of low-speed nodes in each region in a real vehicle environment, and is integrated into a whole vehicle all-optical backbone network. The method is used for converting data complying with a low-speed network protocol into data complying with an XGS-PON protocol.

The invention provides an integrated circuit of multi-service multiplexing access network local side equipment. The integrated circuit comprises a data forwarding matrix unit, a multicast service forwarding matrix unit, a unicast service forwarding matrix, a data plane control unit, a logic plane control unit and a protocol conversion unit, wherein the logic plane control unit is used for determining an optimized unitized and modularized global strategy instruction and realizing protocol conversion, service multiplexing and data forwarding of a communication service, a broadband internet service and a cable television service; and the protocol conversion unit is used for realizing the live broadcast service transmitted by the cable television network in the access network local side equipment. Compared with the existing network for receiving the television live broadcast service in a mode of starting the IGMP protocol, the scheme of the embodiment has the advantages that the investment cost of the CDN node of the core network is greatly reduced, and meanwhile, a home-entry gateway does not need to be arranged in a user home, so that the investment cost of a broadband service, communication service and broadcast television service fusion network is reduced.

The invention discloses an optical fiber adapter control method and system based on artificial intelligence. The method comprises the following steps: acquiring multi-dimensional data acquired in real time by a multipoint sensor network deployed in an optical communication environment; according to the multi-dimensional data, a filtering algorithm is adopted to remove noise interference, and a cleaned environment state data set is obtained; inputting the environment state data set into a pre-established support vector machine model, and generating an abnormal state identifier and a corresponding environment parameter value if detecting that the temperature data or the vibration data exceed a preset threshold range; predicting a control parameter adjustment scheme of the optical fiber adapter by adopting a deep neural network algorithm according to the abnormal state identifier and the environmental parameter value, and generating a control signal set containing an adjustment instruction; and transmitting the control signal set to an automatic execution module, executing mechanical displacement and optical path calibration operation according to the adjustment instruction, and obtaining adjusted optical signal transmission state data. The reliability, the stability and the operation and maintenance efficiency of the optical communication system are remarkably improved.

A device includes a photonic routing structure including a silicon waveguide, photonic devices, and a grating coupler, wherein the silicon waveguide is optically coupled to the photonic devices and to the grating coupler; an interconnect structure on the photonic routing structure, wherein the grating coupler is configured to optically couple to an external optical fiber disposed over the interconnect structure; and computing sites on the interconnect structure, wherein each computing site includes an electronic die bonded to the interconnect structure, wherein each electronic die of the computing sites is electrically connected to a corresponding photonic device of the photonic devices.