70 results about "Network key" patented technology

The invention discloses a public traffic composite traffic network key node identification method based on an improved K-shell algorithm, and the method comprises the steps: firstly extracting the line, geographic position, vehicle arrival interval and rated passenger capacity information of a subway and a bus station from multi-source data, and constructing a weighted composite traffic network considering the intra-layer transportation capacity and inter-layer transfer relation; node stripping is carried out based on a K-shell algorithm, and a shell fine position KP value is calculated in combination with a node removal sequence; further introducing a neighborhood structure overlap ratio, and constructing a node local propagation influence index; meanwhile, a comprehensive correction coefficient is constructed by considering the difference between intra-layer node strength and transfer attributes and the transportation capacity difference between subway and bus layers; and finally, a node comprehensive importance index IKA is formed and is used for sorting and identifying network key nodes. Finally, the recognition effect is verified through network efficiency, connectivity and SIR (susceptibility-infection-recovery) propagation simulation, and the result shows that the method is superior to a traditional centrality algorithm in the aspects of recognition precision and propagation influence measurement.

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 provides a centralized heating method and system based on room temperature feedback regulation, and the method comprises the steps: collecting and verifying real-time room temperature data, and generating a room temperature feedback signal; the signals are transmitted to a central control unit for sequential processing, and a temperature-time two-dimensional data matrix is generated; a preset dynamic compensation algorithm is used for calculating a heat demand correction value of each heat supply pipe network key node; the heat supply pipeline flow is dynamically adjusted according to the correction value; and verifying the effect through a closed-loop feedback mechanism and optimizing algorithm parameters. According to the method, a network is constructed to realize multi-node synchronous acquisition and verification, and heat distribution heterogeneity and fluctuation characteristics are captured in combination with matrix processing and interpolation completion. Compared with a traditional single-point sensor, according to the scheme, through two-dimensional mapping and anomaly detection, the adjustment response time is shortened to the sampling period level, the temperature deviation calculation precision is improved to + / -0.1 DEG C level, the overheating-underheating alternating phenomenon is solved, and accurate dynamic matching of the heat demand correction value is achieved.

The invention relates to a capacity expansion optimization method, system and equipment based on network performance marginal gain, and belongs to the technical field of network communication. The method comprises the following steps: constructing an undirected graph of communication network topology; defining a service requirement for each pair of nodes in the undirected graph, endowing each edge with a capacity value, and constructing to obtain an MCFP model; on the basis of the Lagrange duality theory, a duality model of the MCFP model is constructed, and a column generation algorithm is adopted to carry out double-model synchronous solution to obtain a maximum concurrency factor, optimal path flow and capacity constraint optimal duality variable; performing network key bottleneck identification according to the capacity constraint optimal dual variable and generating a plurality of capacity expansion candidate schemes; and comprehensively evaluating the capacity expansion candidate scheme by combining the network performance marginal gain, the influence degree of the link capacity change and the implementation cost, and selecting the optimal capacity expansion scheme for implementation. According to the invention, accurate load evaluation, bottleneck quantitative identification and efficient capacity expansion optimization of the communication network can be realized.

The invention discloses an electric power communication network key node identification method based on a graph neural network, and belongs to the technical field of intelligent power grid analysis. The method comprises the following steps: firstly, constructing an electric power communication network topological graph, generating an adjacent matrix from the topological graph, standardizing the adjacent matrix to generate a first input matrix, and encoding one-hot of nodes to obtain a second input matrix; inputting the first input matrix and the second input matrix into a trained GCN auto-encoder to obtain a node potential representation; and inputting the node potential representation and the adjacent matrix into a trained GNN node ranking prediction model, outputting node importance scores and sorting, and selecting the first k nodes as key nodes. During model training, a BA model is adopted to generate a synthetic network, an SIR propagation model is adopted to obtain the real importance of nodes, and a listMLE loss function and an Adam optimizer are combined to train an auto-encoder and a prediction model. The method can automatically extract the topology deep features, is high in calculation efficiency and generalization capability, and improves the key node recognition precision.

The invention relates to the technical field of industrial Ethernet, and particularly discloses an Ethernet-based intelligent electric meter data acquisition system, which abandons passive congestion monitoring, and actively calculates a predictive congestion level capable of pre-judging a congestion trend by analyzing a change speed and an acceleration of a network key index time sequence. And then, the system deeply fuses the prediction level and the task priority, and dynamically generates a dynamic scheduling table which allocates an exclusive uploading time slot and an adaptive sampling rate to each ammeter. And finally, the electric meters perform ordered peak shifting data uploading according to the dispatch table. According to the scheme, the synchronous and concurrent data flood flow is converted into the asynchronous time division data flow, so that the formation of a data acquisition storm is avoided fundamentally, and the acquisition integrity and timeliness of key data are ensured under high network pressure.

The invention discloses a key negotiation synchronization method and system for a complex satellite network, and the core of the key negotiation synchronization method is that chaotic system synchronization and neural network mutual learning synchronization are organically fused, and a dual synchronization architecture is constructed; specifically, a local field of each hidden unit of the TPM is transformed and then input into improved Logistic chaotic mapping, and then output bits of the hidden units are determined after output of the chaotic mapping is transformed through an arcsine function, so that a bidirectional feedback coupling relation is established between state updating of a neural network and evolution of a chaotic system. According to the design, the fast synchronization characteristic of the chaotic system and the mutual learning capability of the neural network are mutually promoted, the synchronization convergence speed of key negotiation is remarkably increased, meanwhile, the attack resistance of the system is enhanced by utilizing the unpredictability of chaos, and finally, on the premise that the safety is guaranteed, the key negotiation efficiency is improved. And the efficiency and the reliability of the key negotiation process of the complex satellite network are effectively improved.

This invention relates to the field of computer complex network optimization technology, and discloses a method for mining key nodes in a network based on a discount strategy and an improved discrete crow search algorithm. The method includes: first, preprocessing the citation network to convert it into an adjacency matrix, and then reversing the network to obtain a reverse network; then using the LRDiscount algorithm to initially screen the nodes in the reverse network to obtain a candidate node set. C Next, the candidate node set is optimized according to the local optimization process of the improved discrete crow search algorithm. C Optimization is performed; finally, the optimal set is selected from the optimized node set, and the node influence is evaluated to obtain the final result. k Key seed nodes. Compared with existing technologies, this invention combines the influence discount strategy of network nodes with an improved discrete crow search algorithm. It spreads influence by updating node positions in the process of mimicking crow search, and finds key nodes by the marginal gain generated by individual crows walking in the citation network.

The application discloses a kind of third party construction fixed and mobile intelligent monitoring device, it is related to safety monitoring technical field, specifically includes: acquisition positioning unit, pipe network mapping unit, intelligent fusion evaluation unit and early warning disposal unit;Acquisition positioning unit carries out continuous image acquisition to gas pipe network key protection area by fixed monitoring equipment, and supplementary acquisition is carried out to fixed monitoring blind area or temporary construction area by mobile monitoring equipment;Pipe network mapping unit maps the space-time collection information corresponding to the collection image to the gas pipe network protection range, determines the correlation between construction target and gas pipe network;Intelligent fusion evaluation unit identifies construction target and its behavior state, generates construction risk grade;Early warning disposal unit corrects risk position and revises construction risk grade when meeting preset early warning condition, generates alarm information, the application can improve third party construction target positioning accuracy and risk early warning reliability.

The invention relates to the technical field of sequential network processing, in particular to a sequential network key node identification method based on spectrum normalization propagation accumulation. Interactive node pairs in each continuous time period are extracted, a weighted adjacent matrix is constructed based on a full-time-domain node union set, and it is ensured that interaction time sequence characteristics and node integrity are considered; the adaptive propagation gain coefficient is calculated by means of the cumulative adjacent matrix spectral radius, the overall interaction strength of the network can be adapted without manual parameter adjustment, the propagation effect is prevented from being excessively amplified or underestimated, and the calculation stability is guaranteed; according to the method, propagation states are iteratively calculated in different time periods and accumulated to obtain a total propagation state, the transmission and accumulation strengthening characteristics of node influence in time sequence evolution are accurately described, and the recognition precision of key nodes is effectively improved.

The invention relates to an intelligent internet of things non-intrusive sensor controller. The system comprises a data acquisition unit, a data processing unit, a communication transmission unit and a remote operation and maintenance control unit, collecting first pipeline data, second signal data and third terminal data, and performing processor edge calculation, result screening and abnormal value elimination on the three types of data to obtain regular data; judging the battery voltage and the switching value according to a preset threshold value, and generating an alarm identifier; classifying and caching the regular data and the alarm identifier to obtain a standardized data frame; acquiring the data frame by adopting a modulation mode; synchronously transmitting the second signal data and generating a gateway core jump packet, and simultaneously completing terminal power-on and obtaining cloud platform instruction information; corresponding data parameters are adjusted according to the instruction, a cloud platform control instruction is received by means of an alarm identifier, a relay is driven to act after the instruction is transmitted through a LoRa channel, and the equipment state is read in real time based on regular data; and low-power-consumption data acquisition and remote control in a scattered scene are realized.

The application relates to a heterogeneous network key node identification method and device based on decoupling causal interaction, which comprises the following steps: designing an intention decoupling graph encoder, introducing a generation mechanism of a variational graph autoencoder, mapping node features of a heterogeneous network into a plurality of mutually independent Gaussian distributions, performing differentiable sampling on the node features through reparameterization sampling, and physically separating the node features; based on a contrast learning mechanism of mutual information maximization, regarding each layer of the heterogeneous network as a view, using the contrast learning mechanism to compare and learn mutual information of decoupled representations of the same node under different views, and filtering random noise edges appearing only in a single layer; constructing a structural causal model, identifying mixed factors based on the structural causal model, estimating the weight of the edge by adopting an inverse propensity weighting strategy, and performing causal readjustment on the weight of the edge to identify key nodes that truly have structural control power. The application has the effects of realizing semantic decoupling, structural denoising and causal correction, and improving the accuracy and robustness of network key node identification.

The invention discloses a regional network risk management and control method and system, and relates to the technical field of risk management and control analysis, and the system comprises an information collection module which is used for collecting basic information and login information corresponding to a regional network key node at a collection time node; the analyzing and processing module is used for analyzing and processing the basic information and the login information corresponding to the key nodes of the regional network, performing security analysis on the regional network based on an analyzing and processing result, and formulating a management and control strategy according to a security analysis result; the early warning module is used for executing the control strategy and outputting a warning signal based on the regional network key node; and the communication module is used for outputting notification information to a worker of the management and control area network. The method and the device have the effect of improving the security of the regional network.

In one non-limiting example, a method includes, at an activator device, selecting an environmental powered device from a plurality of environmental powered devices supportable by an access point. The method also includes sending, from the activator device to the selected environmental powered device, an identifier of the activator device and an identifier of the selected environmental powered device, where at least the identifier of the activator device is encrypted and sent to the selected environmental powered device in a request to activate the selected environmental powered device, and then receiving, at the activator device from the access point, an authorization token that can be used to authenticate the activator device and the selected environmental powered device for subsequent data. In some alternative examples, a freshness parameter can be used for encryption. In other alternative examples, an encryption key for the selected environmental powered device can be generated from a home network key set.

The invention provides a communication network key generation method and device, equipment, a medium and a product. The method comprises the steps that a first network element receives a security context of a terminal sent by a second network element; sending a first AS SMC request to the terminal, the request carrying first capability information used for indicating whether the first network element supports wireless key distribution; receiving first AS SMC completion information sent by the terminal according to the first AS SMC request, the first AS SMC completion information carrying second capability information used for indicating whether the terminal supports wireless key distribution; and when both the first network element and the terminal support wireless key distribution, the first network element negotiates with the terminal to generate an encryption and / or integrity protection key of an access layer, and performs a second AS SMC process based on the key. Therefore, the security of the communication network is improved, the first network element can directly negotiate the generation of the key with the terminal, the modification on the network side is small, the influence on the user experience caused by the long wireless key distribution time is reduced, and the improvement of the user experience is facilitated.

The invention discloses a backbone-level destroy-resistant communication system and method based on heterogeneous biplanes, and belongs to the technical field of communication networks. The system comprises a broadband transmission plane serving as a high-speed primary plane; the narrowband transmission plane is used as a heterogeneous backup plane; and the dual-plane cooperative transmission equipment is deployed at a user access node and a network key node, and integrates the functions of service analysis processing, network state monitoring, protocol conversion, dual-plane access adaptation and intelligent routing decision. According to the invention, physical redundancy is realized by constructing heterogeneous biplanes, and intelligent routing and seamless switching of service awareness are realized by using biplane cooperative transmission equipment. The service is preferentially transmitted through the broadband transmission plane in a normal state; when the broadband transmission plane is damaged, key emergency services such as anti-seismic command and scheduling can be automatically identified, and seamless switching to the narrowband transmission plane is realized, so that the continuity of the key services is guaranteed in an extreme environment, and the overall survivability and the survivability of network communication are greatly improved.

The invention relates to a method for connecting a device (DD1) to an internal network (LNT) of a home automation system. The device comprises a first communication interface (CI1) implementing a first communication protocol for connecting to the internal network. The method comprises the steps of: receiving a communication channel identifier (CHN) of the internal network via a second communication interface (CI2) of the device (DD1), the second interface implementing a second communication protocol; attempting to connect to the internal network via a communication channel corresponding to the channel identifier received by the first communication interface (CI1); receiving a network key (NKY) via the first interface; and establishing, using the network key, an encrypted communication link between the device and the internal network via the communication channel corresponding to the received channel identifier. Figure 3

The application discloses an extreme event-oriented main network key element identification method and system, and mainly relates to the technical field of extreme event prediction. The method comprises the following steps: based on the importance of load and the remedial measures of the power system to cope with extreme events, taking the maximum value of the system loss caused by the power cut of the extreme event as a first objective function; using a direct current flow model to model power system operation and establish element constraints; based on the first objective function, power system operation modeling and element constraints, establishing upper and lower two-layer robust models and converting the two-layer robust models into a main problem and a sub-problem; solving the main problem and the sub-problem and outputting the key element combination in the power system; and determining the importance degree of each element in the element combination through the repair sequence of the element. The application has the beneficial effects that it solves the problem that the Monte Carlo simulation method cannot generate the corresponding scene due to the small event occurrence probability, and identifies the key element combination in the power transmission network.

A key update method, a network device, a system, and a storage medium, applied to a Bluetooth mesh network. The Bluetooth mesh network includes at least two mesh nodes. A configuration node is a mesh node in the Bluetooth mesh network, and the configuration node is configured to configure a network key of the Bluetooth mesh network. The configuration node determines a first mesh node from mesh nodes in the Bluetooth mesh network, where a network key locally maintained by the first mesh node is inconsistent with a current network key of the Bluetooth mesh network. Therefore, the configuration node encrypts the first network key by using a device key of the first mesh node, to obtain a first ciphertext, and sends a first message that carries the first ciphertext, so that the first mesh node obtains the first network key.

Virtual connections are established between remotely connected servers in a network. The virtual connections include (1) a terrestrial path, as well as (2) a satellite path, for routing the flow of packets through the network. Keys are used for controlling the selective routing of packets through the virtual connections with either the terrestrial path and / or the satellite path. Some tenants in the network are provided virtual connections for enabling their use of the satellite paths and corresponding satellite components. Other tenants are only provided access to terrestrial connections and are restricted from utilizing the referenced satellite components.

The invention is applied to the technical field of network simulation, and discloses a network simulation method and system, and the method comprises the steps: obtaining simulation configuration information of a target service; performing decoupling regulation and control on each selected network parameter based on a separated independent control algorithm, and screening out network isolated parameters from all the network parameters based on a regulation and control result; constructing a network simulation environment at least based on network isolated parameters and the simulation configuration information; performing multi-time scale updating on each network isolated parameter in the network simulation environment based on a dynamic adjustment rule to generate a network key parameter set; generating a simulation data packet corresponding to the target service according to the target service type, and simulating the simulation data packet based on a target network simulation environment corresponding to the network key parameter set to obtain simulation data in a simulation data packet transmission process; and generating a network simulation result of the target service based on the simulation data. According to the method provided by the invention, the accuracy of network simulation is improved.

A method performed by a processing system including at least one processor includes calculating a first set of key performance indicators for a communications network based on data acquired from at least one source that is accessible to an operator of the communications network and publishing at least the first set of key performance indicators via an application programming interface that enables the operator of the communications network to share data with an external client of the communications network.

Apparatuses, methods, and systems are disclosed for key-based authentication for a mobile edge computing network. One method (800) includes deriving (805), at a user equipment, a first network key after authentication with a network function of a wireless core network, deriving (810) a second network key based on the first network key, the second network key for a first network function of a mobile edge computing network, sending (815) a registration request message to the first network function of the mobile edge computing network, the registration request message integrity protected with the second network key, receiving (820) a registration response message from the first network function, and, in response to verifying the integrity of the registration response message using the second network key, establishing (825) a secure communication with the first network function of the mobile edge computing network based on the second network key.

The present disclosure relates to the technical field of smart home communication, in particular to a smart home device direct connection communication method and device, by pre-storing network configuration information in the local storage of the device, the first device does not need to request network credentials from the gateway when initiating communication, eliminating the dependence of the communication initiation process on the real-time availability of the gateway, and normal communication between devices can still be maintained in scenarios such as gateway offline or network interruption; by encrypting the payload with a network key and carrying a network identifier in the data frame, the second device can independently complete the legality verification and content decryption of the frame based on the same credentials stored locally, without the gateway having to bear the responsibility of credential management or relay, completely decoupling the forwarding path of the gateway for both parties of the communication. By directly sending data frames on the radio frequency channel corresponding to the network configuration information, the control instruction reaches the target device via a single wireless path between devices, reducing the instruction transmission delay.

The invention provides a drainage pipe network spatial topology dynamic reconstruction method based on RTK and on-site survey fusion. The method comprises the following steps: firstly, dividing troubleshooting blocks based on a pump station service range and a water catchment unit; establishing communication connection between RTK equipment and a mobile acquisition terminal, acquiring three-dimensional coordinate data of key nodes of the pipe network, synchronously acquiring field images, and generating a pipe network space sketch in real time; inputting attribute information on the basis, and constructing an initial vector pipe network topology model; the core is to obtain on-site on-site survey feature data, construct a multi-source evidence confidence correction model, perform logic conflict detection and dynamic correction on an initial topology model by using the model, and intelligently identify and repair anomalies such as reverse slopes, disconnection and dark connection. And finally, mapping the corrected model into a standardized GIS pipe network database and outputting the standardized GIS pipe network database. By fusing high-precision physical actual measurement and on-site microscopic trace evidence, the problem of topology distortion caused by old pipe network drawing missing and settlement is effectively solved, and the accuracy of pipe network reconstruction is remarkably improved.

A communication method, a communication device and a terminal are applied to the technical field of communication. In the embodiment of the invention, the first node can send the security protection parameter (such as a key and the like) of the first network to the second node in an encrypted sending mode, so that the second node can safely obtain the security protection parameter of the first network, and the availability of the network is improved. Furthermore, before the first node encrypts and sends the network key of the first network, the first node also needs to verify some transmitted information, that is, whether the information transmitted by the first node and the second node is tampered or not is verified, so that the information transmitted by the first node and the second node is ensured to be accurate and not attacked. The algorithm for verifying the transmitted information can be obtained by negotiation of the first node and the second node, so that the method can adapt to the condition that nodes with various different security capabilities join the network, the network can be applied to a scene with various different types of equipment, and the inclusiveness of the network is improved.

The invention discloses a wireless intelligent equipment network access method, device and system based on starting time correction, and relates to the technical field of intelligent equipment network access. The method comprises the following steps: entering a broadcast monitoring state; after broadcast messages sent by all the devices are received, the start completion time in the messages is extracted, and the logic power-on time of each device is calculated in combination with the message receiving time; reasoning according to all logic power-on time to obtain a group time window; and distributing a network key for the equipment in the group time window in the logic power-on time, performing network access permission, and returning to enter a broadcast monitoring state or ending. According to the wireless intelligent device network access method, device and system based on starting time correction provided by the invention, through a time correction mechanism, different physical starting times of different devices are uniformly mapped to logic synchronous time points, so that intelligent group judgment and automatic binding of the devices by a central control gateway are realized.

The invention provides an adaptive zero-trust security management and control method based on trust dynamics, and relates to the technical field of network security. Comprising the following steps: firstly, collecting and preprocessing communication data at network key nodes in real time to generate feature vectors; then, a deep auto-encoder model is utilized to calculate reconstruction loss of network behaviors, and the reconstruction loss is mapped into a standardized basic credibility score through fitted Gaussian distribution; thirdly, dynamically capturing a trust evolution trend by calculating the speed and the acceleration of the trust score, driving a state machine comprising a plurality of security states to transfer, and generating a corresponding disposal action set according to a preset strategy mapping matrix; and finally, a strategy execution point is converted into specific network control rule execution, and a complete and automatic management and control system is formed. According to the invention, the problems of static lag of trust assessment and lack of perspectiveness of decision making in a zero-trust architecture are effectively solved, and early warning and self-adaptive fine management of potential risks are realized.

The application discloses a network key node identification result evaluation method and device, and the method comprises the following steps: S1, acquiring a target network and an identification result set; S2, performing standardization processing on the target network to obtain a standard network; S3, performing processing on the standard network and the identification result set to obtain a resilience sequence; the resilience sequence comprises N resilience values; and S4, utilizing a comprehensive evaluation model to perform processing on the resilience sequence to obtain a comprehensive evaluation value. The application can quantitatively evaluate the effect of key node identification.

The application provides a non-contact palmprint recognition method based on hand shape semantic prior and ViT, which aims at the problem of poor user friendliness in the traditional ROI extraction method, adopts a new ROI region division method, and positions the ROI region by two reference points located at the edges of the palm; meanwhile, a network key point positioning network (Key-Point Location Regression Network, KPLRN) is proposed to accurately position the key points, and the ROI can be accurately extracted from the palm image in any direction, and the requirement for the palm posture is also reduced. In view of the technical problem of low recognition accuracy in the traditional recognition method, a new recognition network structure is built for the palmprint recognition task, that is, an inverted-bottleneck block recognition network (Inverted-Bottleneck Block based Recognition Network, IBRN), and by adopting a suitable training strategy, the recognition accuracy is broken through, and comparison and verification are carried out on multiple databases. The application can be widely applied in identity authentication.