189 results about "Time sensitive networking" patented technology

The invention relates to the technical field of ground mobile unmanned equipment control, and discloses a ground mobile unmanned equipment autonomous obstacle avoidance control system optimized by artificial intelligence. The system comprises an environment perception layer, a bimodal risk assessment layer, a dynamic decision-making layer, a trajectory optimization layer and a feedback optimization layer. The environment sensing layer adopts a retina fovea centralis imitating mechanism to perform non-uniform sampling on laser radar point cloud data to generate dynamic point cloud partitions; the bimodal risk assessment layer fuses two types of radar data to generate static and dynamic obstacle risk assessment diagrams; the dynamic decision-making layer establishes space-time mapping and generates an obstacle confidence coefficient matrix through a graph neural network; the trajectory optimization layer converts the matrix into a control parameter based on a multi-objective evolutionary algorithm, and issues the control parameter through a time-sensitive network protocol; and the feedback optimization layer monitors environment change, calculates deviation, generates an effectiveness index, and dynamically adjusts a point cloud acquisition strategy until the index is optimal. According to the system, the autonomous obstacle avoidance capability and adaptability of the ground mobile unmanned equipment in a complex environment are enhanced.

The invention provides a servo press control system and method based on a time-sensitive network, and relates to the technical field of intelligent manufacturing and industrial automation control, and the system comprises a time-sensitive network TSN which is used for providing global time synchronization and deterministic data transmission; a main controller of the multi-axis servo control unit is used for issuing a motion control instruction and a feeding and discharging control instruction through a TSN. A robot controller in the robot feeding and discharging unit is used for driving an industrial robot to execute plate taking and placing operation under the action of the feeding and discharging control instruction. The visual monitoring unit comprises an industrial camera accessed to the TSN and is used for collecting images and transmitting image data to the edge computing node through the TSN; the edge computing node is used for processing the image data to generate a compensation instruction and feeding back the compensation instruction through the TSN; and the upper monitoring system is used for subscribing real-time data published by the edge computing nodes, so that the control range of the servo pressure control system is expanded, and the convenience of data transmission and interaction is improved.

The invention belongs to the technical field of unmanned aerial vehicle power inspection, and discloses a multi-module cooperative control method for an unmanned aerial vehicle power inspection system based on a visual language model. The precise mapping of the natural language instruction and the inspection task is realized; a user does not need to depend on professional coordinate input, and target equipment and key parts can be positioned only through daily inspection verbal skills; meanwhile, a priority evaluation model and a task snapshot mechanism constructed by an analytic hierarchy process support rapid insertion and progress recovery of temporary high-priority tasks, so that the emergency troubleshooting requirement of sudden equipment exceptions can be met, orderly promotion of conventional inspection can be guaranteed, and intelligence and flexibility of substation inspection are improved; the cooperative bus built based on the time-sensitive network realizes efficient data synchronization of a plurality of modules such as a fusion model, navigation, visual acquisition and the like.

The multi-agent cooperative scheduling method for the incremental mixed flow in the industrial time-sensitive network comprises the following steps: analyzing transmission characteristics of an AVB flow and a TT flow in the industrial time-sensitive network, and carrying out refined modeling on dynamic interference caused by the increment of the mixed flow based on a network calculation theory; determining key transmission management variables of the AVB stream and the TT stream in combination with a dynamic interference factor introduced by the incremental mixed stream; designing a flow scheduling model based on multi-agent cooperation, and generating an end-to-end transmission scheme based on multi-agent cooperation decision when incremental mixed flow is accessed; and packaging the trained agents into a multi-agent cluster and deploying the multi-agent cluster into an industrial time-sensitive network for generating a transmission scheme for the incremental mixed flow on line. According to the method, the transmission requirement of the incremental mixed flow can be met while the existing AVB flow delay constraint is guaranteed, the transmission scheme is optimized to improve the service quality of an industrial time-sensitive network, and stable operation of advanced applications in the industrial Internet of Things is fully supported.

The invention discloses a piece placing sequence mistake proofing device which comprises a multi-dimensional sensing module, an intelligent control module, a reconfigurable positioning module, an execution intervention module, a block chain tracing module and a man-machine interaction module, and all the modules communicate through an industrial Ethernet. The multi-dimensional sensing module and the intelligent control module adopt a time-sensitive network protocol to guarantee the certainty of data transmission, the multi-dimensional sensing module integrates an AI vision assembly, an ultrahigh frequency radio frequency identification read-write unit and a polarized light detection assembly, and parallel acquisition and cross validation of cutting piece multi-dimensional information are realized through a time sequence synchronous triggering mechanism. According to the method, a full-dimensional recognition system can be constructed through cooperation of multi-modal sensing fusion and an intelligent algorithm to avoid a single detection blind area, multi-variety production requirements are adapted by relying on AI incremental learning and rapid remodeling design, non-tampering tracing of quality data is realized in combination with a block chain technology, and the method is suitable for mass production. And meanwhile, reliable operation of the system is guaranteed through redundancy control and emergency design.

Disclosed examples determine a first time corresponding to a start of a window for a data exchange; determine a second time corresponding to a data packet sent during the window; calculate link performance data based on the first time and the second time; and transmit the link performance data to a network configuration entity.

The invention particularly relates to an incremental scheduling method for deterministic services of a time-sensitive network, and belongs to the technical field of scheduling of the time-sensitive network. Aiming at the problems of high conflict detection overhead under dynamic access, large search scale of a long-short period mixed scene, reduced schedulability caused by time slot fragments and the like, the method comprises the following steps: constructing a scheduling model, and performing multi-rule sorting and route pre-selection on to-be-accessed services; time granularity scaling and periodic modular domain projection technologies are introduced, multi-link and multi-period conflict detection is converted into bitmap operation in a single period, and a modular domain taboo table is rapidly generated; a conflict-free sending phase is efficiently searched based on bitmap operation, a comprehensive cost function integrating fragment sensing, time delay and load balancing is adopted for multi-dimensional evaluation, and an optimal scheduling scheme is selected. According to the method, the efficiency and the real-time performance of online incremental scheduling can be remarkably improved, the search overhead is reduced, time slot fragments are reduced, and the service scheduling success rate in a high-load scene is improved.

The invention discloses a carrier rocket avionics system based on a TSN (Time Sensitive Network) and a carrier rocket avionics data transmission method, and belongs to the technical field of carrier rocket control. A network is physically or logically divided into a periodic time-sensitive data stream, a high-speed time-sensitive data stream and a best effort data stream, the three data streams are subjected to isolation management, and transparent interconnection between a 1553B bus network and a TSN switching network is realized on a protocol layer through an intelligent protocol conversion gateway. Meanwhile, in a network management layer, through an instruction response type configuration protocol, common Ethernet equipment is seamlessly incorporated into the global scheduling and control category of the TSN network. According to the invention, by constructing the avionics network system with three-layer partition and dual-network fusion, multi-network seamless fusion on the rocket can be realized, the real-time performance of the network is improved, and the key requirements of rocket recovery are met.

The invention relates to a time-sensitive network gating scheduling optimization method and system based on reinforcement learning, and belongs to the field of time-sensitive network scheduling. According to the method, data flow and network topology information are collected, a graph neural network is adopted for feature coding, a reinforcement learning model of a two-stage action space is designed for routing selection and gating decision making, and an early scheduling time slot allocation algorithm and a hierarchical training strategy are combined, so that the routing accuracy is improved. The problems that a traditional scheduling method is high in calculation complexity and gating list entries are increased sharply are effectively solved, the gating entries are minimized on the premise that time delay and jitter constraints are met, and the schedulable rate and deployment feasibility under a complex topology and multi-cycle flow set are improved.

The invention provides a time-sensitive network test method and device, electronic equipment and a storage medium. The time-sensitive network test method comprises the following steps: generating time-sensitive network test Qbv interference test configuration, communication quality test configuration and load configuration; according to the Qbv interference test configuration, the communication quality test configuration and the load configuration, respectively executing tests to obtain a scheduling strategy test result, a communication data test result and a performance test result under abnormal traffic interference; and determining a network test result of the time-sensitive network according to the scheduling strategy test result, the communication data test result and the performance test result. The method has the beneficial effect that the reliability and the stability of the IEEE 802.1 Qbv scheduling strategy of the TSN application system are improved.

A method of synchronizing a network side time sensitive network (TSN) converter (NW-TT) module within a user plane function (UPF) in a communication network with a master clock (GM) in the 5G time domain of the communication network is described. The method comprises the step of adjusting the clock frequency of an N3 interface to enable the N3 interface to be synchronized with the clock of a GM. The method includes generating one or more pulses on a pin of the N3 interface. The method includes detecting the one or more pulses on a pin of the NW-TT module. The method includes determining a time offset value (Offset NW-TT) between the N3 interface and the NW-TT module. The method includes adjusting a time or clock frequency of the NW-TT module using a determined time offset value (Offset NW-TT), thereby enabling time synchronization of the NW-TT module and the GM.

A communication network configured to support time-sensitive interconnection communication is disclosed. In one example, the communication network comprises: communication network components, each configured to provide a functionality for data communication from a source device across the communication network to a destination device and a processor arranged to configure at least one component of the communication network components based on a time sensitive communication schedule of a flow which passes through the at least one component, wherein the at least one component is configured to act as at least one waypoint to provide the time sensitive interconnection communication such that the at least one waypoint communicates with at least one of other waypoints in a neighbor communication network to connect the time sensitive communication schedule with another time sensitive communication schedule of another flow passing through a plurality of other communication network components in the neighbor communication network.

A system to support time sensitive networking (TSN) in a 5G system is described. The TSN application function (AF) sends to a device-side translator a Port Management Information Container (PMIC) and port number that has a Stream Identification type value and Stream Identification controlling parameters that depend on the Stream Identification type value for per-stream policing and filtering in a distributed bridge. During establishment of the bridge, the network-side translator port numbers are provided to the TSN AF in a Bridge Management Information Container (BMIC). Any PDU session of the bridge is able to be selected for Ethernet port and Bridge management procedures between the network-side translator and the TSN AF.

The invention relates to a cross-domain QoS (Quality of Service) mapping method, system and equipment based on three-way decision, and a medium. The method comprises the following steps: constructing an attribute matrix by extracting key service quality attributes such as priority and delay budget of time-sensitive network data flow; carrying out weighted clustering by adopting a comprehensive weight fusing attribute dispersion and discrimination, and generating a clustering center set and a membership relationship; dividing the 5G service quality identifier into a core domain set and a boundary domain set based on a three-way decision mechanism; a dynamic weight is calculated in combination with the load residual rate and the service quality similarity, and a layered mapping decision with core domain priority is realized; dynamic remapping is triggered by closed-loop load monitoring. According to the method, the three technical problems of static mapping rule stiffness, attribute differentiation processing deficiency and contradiction between load balancing and service quality management in the industrial internet are solved, and the network resource utilization rate and the service quality guarantee capability in a high burst traffic scene are remarkably improved.

A method and system for deterministic communications between a plurality of interconnected semiconductor chips. The system includes a plurality of semiconductor chips, and a controller coupled to each of the plurality of semiconductor chips, respectively. The controller is configured to transfer data from one semiconductor chip to another. Each of the semiconductor chips and the controller include a respective clock, and the controller is configured to synchronize the clocks of the plurality of semiconductor chips. The controller schedules and manages data flows from and to the plurality of semiconductor chips for deterministic communications between the plurality of semiconductor chips. The controller may implement IEEE Time Sensitive Networking (TSN) protocol for scheduling and managing the data flows between the plurality of semiconductor chips.

A method for transmitting data using a time sensitive network (TSN). A first communication device includes a first terminal and a first TSN bridge, and the second communication device includes a second terminal and a second virtual TSN bridge. In the method, the first terminal transmits a virtual TSN bridge connection request to the first virtual TSN bridge. The first virtual TSN bridge transmits a virtual TSN port information request to the second virtual TSN bridge according to the virtual TSN bridge connection request. The second virtual TSN bridge transmits, to the first virtual TSN bridge, information related to a virtual TSN port included in the second virtual TSN bridge. The first virtual TSN bridge determines, based on the information related to the virtual TSN port, a plurality of virtual TSN ports to be used for communication with the second virtual TSN bridge in the first virtual TSN bridge.

The document describes, for example, programs, methods, architectures, apparatuses, systems, devices, and computer program products that utilize extensions and / or improvements provided to the Internet Protocol (IP) header to enable the use of at least a set of Protocol Data Units (PDUs) in 3GPP networks and TSN-enabled 3GPP networks.

The invention discloses a time-sensitive network clock synchronization recovery method and device, equipment, a storage medium and a product, and the method comprises the steps: switching a predetermined candidate master clock into a master clock in response to the abnormality of the master clock; a synchronization message is sent through the master clock, the synchronization message comprises a newly added slave clock hopping field, whether first synchronization is carried out or not is judged through each slave clock according to the first synchronization identifier, if yes, whether the value of the slave clock hopping field is a first preset value or not is judged, and if yes, a candidate master clock notification is broadcasted through the slave clock; judging whether the value of the local slave clock hopping field is a first preset value or not through each slave clock, and if so, determining a candidate master clock according to the performance parameter of the slave clock included in the candidate master clock notification and the local parameter; if not, determining that the slave clock corresponding to the notification is a candidate master clock; by pre-determining the candidate master clock, the master clock can be quickly switched when the master clock is abnormal, so that the continuity and reliability of clock synchronization of the time-sensitive network are guaranteed.

A method performed by one or more network devices is disclosed for configuring a virtual switch implemented in a cloud platform. The method includes obtaining traffic characteristics information for one or more time-sensitive data streams that are to traverse a mobile network acting as a virtual bridge of a time-sensitive network, wherein components of the mobile network are implemented in the cloud platform, obtaining tunnel identifiers of tunnels in the mobile network that are to carry the one or more time-sensitive data streams, obtaining application deployment information for an application that communicates with end devices connected to the time-sensitive network, wherein components of the application are implemented in the cloud platform, generating configuration information for the virtual switch based on the tunnel identifiers, the traffic characteristics information, and the application deployment information, and causing the virtual switch to be configured based on the configuration information.

A data transmission method and apparatus, an electronic device, and a storage medium are disclosed. The data transmission method may include: acquiring current time information (S1100); acquiring message attribute information of a current traffic flow to be sent (S1200); generating a transmission control policy based on the current time information and the message attribute information (S1300); and controlling traffic flow transmission in time-sensitive networking based on the transmission control policy (S1400).

The invention discloses a method and a device for realizing cross-domain data interaction certainty, and relates to the technical field of high-reliability time-sensitive networks, and the method comprises the following steps: allocating physically isolated and non-interfering storage slots for each data source by aligning with a cache line through single writer binding in advance; in the interrupt domain, writing data triggered by an external event into a corresponding slot position according to an instruction constraint rule, and ensuring that the writing time has a determined upper bound; in a periodic task domain, data is read from a storage slot based on a maximum retry budget and a single read time upper bound, and degradation fusing is triggered when a retry upper limit is reached, so that the total time consumption of data reading is limited within a deterministic boundary which can be calculated in advance. According to the method, the provable performance of the execution time of the worst case of the system is realized, and the time sequence certainty and reliability of cross-domain data interaction are improved.

The invention particularly relates to a time-sensitive network-oriented differential privacy security traffic forwarding method, which comprises the following steps of: injecting false frames conforming to differential privacy according to the distribution of incoming real traffic, so that all virtual frames in the whole time slot finally conform to the security of the differential privacy. Wherein the injected false frame is indistinguishable from the real frame. In addition, bias is added to noise in differential privacy, that is, the number of false frames needing to be injected is the same as that of the bias under the condition that no real data exists. According to the method, the real frame can be effectively prevented from overflowing to the next time slot, so that only limited and predictable time delay is introduced into the injected false frame, and no negative influence is generated on the performance of key traffic.

The invention provides a time synchronization method and device, electronic equipment, a storage medium and a program product, relates to the technical field of mobile communication and industrial networks, and is used for providing a low-cost, high-precision and high-reliability clock synchronization scheme for a time sensitive network. The method comprises the following steps: for each SFN frame boundary signal transmitted by a 5G protocol stack, performing timestamp marking when the SFN frame boundary signal is received; receiving an absolute time reference point in an SIB9 message transmitted by the 5G protocol stack, reading a target SFN value when the absolute time reference point is analyzed by the 5G protocol stack, marking a local timestamp of the FPGA when the absolute time reference point is analyzed by the 5G protocol stack, and establishing a ternary time mapping relationship; on the basis of the ternary mapping relation, time interpolation is carried out by using the timestamp of the SFN frame boundary signal, and continuous absolute time is generated; and generating a clock synchronization signal for the time-sensitive network according to the continuous absolute time.

The present application relates to photovoltaic energy storage optimization control technical field, especially photovoltaic energy storage integrated charge-discharge control method and system, its method includes: collecting multimodal signal, fusing after time sensitive network synchronization and denoising;Liquid neural-thermal power and electrochemical coupling digital twin system is used to generate heat source power density, battery aging parameter and linear embedded state data;Based on the state data of space-time Gaussian process sampling probability scene, high-dimensional supersymbol coding and mutual information filtering compressed scene set, combined with the aging parameter in quantum-temperature change global optimization model to determine the optimal charge-discharge state, generate reference power trajectory;Neuromorphic chip runs convex model predictive control output real-time power instruction;Inverter executes charge-discharge through pheromone game and self-distillation reinforcement learning and triggers supercapacitor support when frequency is abnormal, executes data write distributed ledger closed loop update.The present application realizes millisecond level power tracking and reduces cycle stress.

According to the scheduling method for reducing the receiving jitter of the transport streams on the disjoint redundant routing in the time-sensitive network, a heuristic method is provided based on a TSN circular queue forwarding shaper and an IEEE 802.1 CB protocol, and the purpose is to minimize the average jitter of all data streams and reduce the receiving jitter of the transport streams on the disjoint redundant routing. The time slot with the low utilization rate on each redundant route is selected through calculation, so that network congestion is relieved, and receiving jitter is reduced. And a time slot reducing program is adopted in the heuristic algorithm, and after all flow scheduling is finished, the size of the time slot is reduced by calculating residual unused resources in each time slot of all links in the topology in a super cycle, so that the receiving jitter is further reduced, and on the premise that the schedulability is kept, the scheduling efficiency is improved. And the reliability is ensured and the receiving jitter is reduced.

Techniques include a method, apparatus, system and computer-readable medium to enhance security for time-synchronized networking. A method includes decoding a reference message comprising time information to synchronize a hardware clock of a time sensitive network (TSN) node with a network time for a TSN, the reference message associated with a reference synchronization interval, selecting a virtual clock from a set of virtual clocks for the TSN node, the virtual clock associated with a first synchronization interval that is different from the reference synchronization interval, and adjusting a time for the virtual clock based on the time information from the reference message to synchronize the virtual clock with the network time for the TSN. Other embodiments are described and claimed.

Embodiments include methods performed by a source node for handover of a user equipment (UE) from a source cell served by the source node in a wireless network. Such methods include transmitting, in the source cell according to a reference time delivery configuration, one or more messages that include respective reference times in relation to corresponding source cell transmission events. Such methods also include transmitting, to a target node in the wireless network, the reference time delivery configuration in relation to a request to handover the UE from the source cell to a target cell served by the target node. Other embodiments include complementary methods performed by the target node, as well as network nodes configured to perform such methods.

The invention provides a data packet sending method and device, equipment and a program product, and relates to the technical field of communication. The method comprises the following steps: inputting a data packet arrival time sequence characteristic of a service flow in a first time window into a target deep learning model to predict a jitter condition of the service flow in a second time window; wherein the first time window is earlier than the second time window. Determining the data packet sending opportunity of the service flow in the first time window based on the baseline window and the jitter condition of the service flow in the second time window; wherein the baseline window is a normal jitter range determined based on the data packet transmission condition of the service flow in the third time window; the third time window is earlier than the first time window. And adjusting a gating strategy of a time-aware shaper of the time-sensitive network, so that the time-aware shaper sends a data packet of the service flow in the first time window according to the data packet sending opportunity of the service flow in the first time window.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive, from a time-sensitive networking (TSN) application function (AF), a first request for a parameter at a device-side TSN translator (DS-TT) associated with the wireless communication device. The wireless communication device may generate a cause code that indicates that the parameter is supported but not available, if the parameter is not available. The wireless communication device may transmit the cause code to the TSN-AF. Numerous other aspects are described.

This invention proposes a dynamic routing decision-making method, specifically a TSSDN dynamic routing decision-making method based on the DDPG deep reinforcement learning algorithm. The aim is to design dynamic routing decisions using deep reinforcement learning algorithms based on network dynamic awareness prediction results, thereby reducing the transmission latency of low-priority flows in time-sensitive networks. This invention uses a deep learning algorithm to predict switch queue lengths in real time, and then makes next-hop routing decisions based on the prediction results. Higher prediction accuracy leads to better dynamic routing performance and improved decision-making efficiency. The implementation steps are: 1) Constructing the TSSDN network node architecture; 2) Constructing the network topology; 3) Constructing a topology feature extraction method based on PCA; 4) Constructing a prediction model based on a deep learning algorithm; 5) Constructing a routing decision-making model based on a deep reinforcement learning algorithm; 6) Iteratively training the deep reinforcement learning-based routing decision-making model based on the prediction results. This invention can be applied to scenarios such as telemedicine.