66 results about "Synchronous network" patented technology

The invention discloses a distribution network cable fault early warning method and system based on multi-terminal synchronous traveling wave detection, and relates to the technical field of cable fault detection. The method comprises the following steps: deploying at least three synchronous detection ends at each branch end point of a cable, and synchronously triggering a sampling rate; establishing a master-slave synchronous network, and performing frequency spectrum correction on the acquired data; constructing a real-time correction model based on the data of the distributed temperature sensor; extracting early fault features, and constructing a three-dimensional feature tensor; carrying out preliminary diagnosis on edge nodes and carrying out feature classification by adopting a transfer learning optimization network; and in combination with the cable load rate and the environment temperature and humidity, an early warning threshold self-adaptive model based on fuzzy PID (Proportion Integration Differentiation) is established. Through multi-terminal cooperative perception and intelligent analysis, the scheme converts a fault processing mode from passive first-aid repair to active defense, improves the manual inspection efficiency of the distribution network cable, and finds early fault hidden dangers in advance.

The invention provides a digital clock remote metering method based on network delay suppression, which comprises the following steps of: constructing a layered synchronous architecture, deploying a main clock source, a plurality of regional clock servers and a plurality of terminal devices, connecting the plurality of regional clock servers with the main clock source through optical fiber special lines to obtain reference time, each regional clock server is connected with a plurality of terminal devices through a 5G / industrial Ethernet to form a three-level synchronous network; rTT data of the terminal device and a regional server are obtained through bidirectional timestamp interaction, and message screening is carried out according to a preset rule; calculating a final time delay compensation value by adopting a mixed time delay compensation algorithm, and calibrating a terminal clock by adopting the final time delay compensation value; and adopting a time selection algorithm to obtain an optimal reference source for data synchronous analysis. According to the invention, the time deviation problem between the current time indicating value of the digital clock and the standard time and the data synchronization analysis problem can be solved.

The invention provides a ground satellite signal distributed cooperative processing method and system, and relates to the technical field of communication, and the method comprises the steps: extracting a user MAC address hash value, an emergency priority code and a spectrum occupancy matrix from a synchronous network, and generating a triple feature vector; transmitting the triple feature vectors through a double-layer Mesh network, selecting two reference target points with fixed geographic coordinates on the ground of the disaster area, obtaining three-dimensional coordinates of the reference target points, and constructing a space reference straight line; according to the real-time position data of each node, calculating a vertical projection distance from each node to the space reference straight line, and generating a node offset parameter; and dynamically generating a refraction correction coefficient of the signal propagation path based on a comparison result of the node offset parameter and a preset threshold value, and when the offset exceeds the threshold value, increasing a correction weight by adopting a piecewise linear interpolation method. According to the invention, high-reliability and low-delay emergency communication coverage can be realized.

A self-organizing mesh network system is disclosed, comprising: at least one master node generating a timing reference signal; a plurality of regular nodes deriving time synchronization from the timing reference signal; and a wireless medium for communicating location and timestamp information among the plurality of regular nodes, The plurality of regular nodes may be configured to each use communicated location and timestamp information of nearby nodes to independently generate a location map of the nearby nodes. The plurality of regular nodes may be configured to accept an additional regular node. The plurality of regular nodes may be configured to allow a node of the plurality of regular nodes to exit the plurality of regular nodes. The plurality of regular nodes may each use communicated location and timestamp information of the plurality of regular nodes to independently generate a location map of each of the plurality of regular nodes.

The application relates to the technical field of wireless Mesh networks, and discloses a synchronization method for a wireless Mesh network, wherein the Mesh network comprises a plurality of Mesh network nodes connected to each other, the synchronization method comprises the following steps: obtaining external relative execution time in a Mesh control message received by a Mesh network node; obtaining internal relative execution time saved by the Mesh network node; and correcting the internal relative execution time in the case that the external relative execution time is less than the internal relative execution time. The synchronization operation of the Mesh network node is realized by using the relative time mode, the Mesh network node is clocked by using an internal crystal oscillator, the device of the Mesh network node does not need to quickly re-synchronize the network clock after being powered off and then powered on, and the accuracy of the synchronization operation of the device of the Mesh network node in the Mesh network can be improved. The application further discloses a synchronization device for a wireless Mesh network and an electronic equipment.

The invention discloses a network equipment firmware hot standby method, electronic equipment, a storage medium and a program product, and relates to the technical field of computer networks, and the method comprises the following steps: monitoring the running state of main firmware; the main firmware runs in main network equipment; when the running state of the main firmware meets a switching trigger condition, switching the standby firmware, so that the standby firmware takes over the service of the main firmware according to the network management information; the standby firmware runs in standby network equipment; synchronizing network management information between the main firmware and the standby firmware; and notifying that the physical address of the target object is changed into the physical address of the standby network equipment, so that the target object forwards the network traffic to the standby network equipment. According to the method, a cross-device firmware hot standby mechanism is adopted, the main firmware is operated in the main network device, the standby firmware is operated in the standby network device, the limitation that only local firmware redundancy is supported in a related scheme is broken through, seamless switching of the main firmware and the standby firmware can be achieved, it is ensured that services are not interrupted, and the availability and stability of a network system are improved.

The invention relates to a global vector CSN transaction snapshot generation device and method of a shared storage multi-Master cluster database system. The device comprises a multi-Master CSN generation module which is used for generating a multi-Master cluster mode CSN serial number with a node identifier when a transaction is submitted and binding a transaction number to a CSN LOG; the CSN BOC sending module asynchronously broadcasts the packaged transaction number and CSN serial number message packet to other nodes of the cluster; the CSN BOC receiving module is used for receiving the message packet, recording the message packet to a local CSN LOG and maintaining a global CSN vector (storing the latest CSN of each node according to the node number); and the vector CSN snapshot generation module generates a snapshot by copying a global CSN vector and updating the CSN of the node, and is used for data line snapshot isolation visibility check. According to the method, the limitation of a traditional CSN single node is broken through, the problem of unified description of a multi-Master cluster cross-node transaction sequence is solved, synchronous network IO loss is avoided through asynchronous message and memory operation, and cluster transaction visibility check efficiency and service concurrency performance are remarkably improved.

Systems, methods, and circuits are provided for handling non-synchronous interrupts in a time-synchronous network. In one example, a method includes, for a primary device, monitoring a communication channel during a series of configured packet time slots. Respective packet time slots in the series are mapped to respective secondary devices, and consecutive packet time slots in the series are separated in time by respective inter-packet times. The inter-packet times do not overlap any packet time slot. The method includes monitoring the communication channel during at least one common asynchronous interrupt time slot occurring during a respective inter-packet time, and generating one or more control signals based on signals received during the packet time slots and the at least one common asynchronous interrupt time slot.

Various embodiments are provided for dynamically reconfiguring radio access network (RAN) functionality between edge and cloud computing environments. A RAN-enabled edge server deployed at an edge location is configured to perform a set of distributed unit (DU) functions for a radio-based network, while a server hosted at a regional data center of a cloud provider network is configured to perform a set of core network functions for the radio-based network. The system monitors availability of the core network functions at the edge location and determines that the set of core network functions provided by the server at the regional data center is unavailable. In response to determining that the core network functions are unavailable, the RAN-enabled edge server is dynamically reconfigured to perform the set of core network functions.

The invention discloses an SNN learning accelerator for ECG monitoring, which comprises a register configuration module, an asynchronous global control module, an asynchronous neural network control module, an asynchronous binary classification CNN module, an asynchronous quadruple classification SNN module, an asynchronous weight updating module and a memory management module, and is characterized in that firstly, a circuit corresponding to the accelerator constructs a double-layer dynamic network; layered dynamic power consumption management: selectively activating a high-precision secondary anomaly detection four-classification SNN network through a primary anomaly detection two-classification CNN network; secondly, the accelerator supports on-chip reasoning and efficient learning, and effectively eliminates ECG feature differences of different individuals on the premise of ensuring privacy security of user data; and finally, the circuit is controlled by using a pulse neural network and an asynchronous logic circuit, so that compared with a synchronous network, the power consumption is greatly reduced.

The invention discloses a synchronous network model asynchronization implementation method and device and a distributed system, and the method comprises the steps: initiating a service request through a sending thread pool, and recording task context information associated with the request after the request is sent; receiving a request result returned by the three-party server by using a receiving thread pool, performing reverse search in the task context information based on at least part of information carried in the request result, and matching a corresponding to-be-processed task; after successful matching, triggering an asynchronous callback function pre-registered by the user to complete service processing logic; based on a preset timing index structure, the overtime task is cleared, and the timing index structure at least comprises multiple pieces of task information sorted according to the task deadline. According to the invention, on the premise of not depending on underlying network control, asynchronous packaging of the synchronous interface is realized, and the throughput and response timeliness of the system are remarkably improved.

A self-organizing mesh network system is disclosed, comprising: at least one master node generating a timing reference signal; a plurality of regular nodes deriving time synchronization from the timing reference signal; and a wireless medium for communicating location and timestamp information among the plurality of regular nodes, The plurality of regular nodes may be configured to each use communicated location and timestamp information of nearby nodes to independently generate a location map of the nearby nodes. The plurality of regular nodes may be configured to accept an additional regular node. The plurality of regular nodes may be configured to allow a node of the plurality of regular nodes to exit the plurality of regular nodes. The plurality of regular nodes may each use communicated location and timestamp information of the plurality of regular nodes to independently generate a location map of each of the plurality of regular nodes.

The invention provides a hybrid access control method and an unmanned flexible ad hoc network system based on a multi-channel access structure. The method comprises the following steps: in an initialization stage, configuring a plurality of service queues and cache spaces thereof; performing synchronous network access processing on each subnetwork accessed to the network; taking a time period and a time slot as units, and performing multi-service queue scheduling by combining a whole-network broadcast time period, a multi-user polling time period and a multi-user competition time period; according to the system, the method is implemented in the layered and clustered elastic ad hoc network through an established multi-channel access structure. According to the invention, a layered and clustered networking architecture and a multi-channel access structure are adopted to realize each cluster frequency packet networking and flexible networking control, and a hybrid access control method is adopted to realize service classification scheduling, so that the problems of limited network scale and capacity bottleneck in the existing ad hoc network are solved, and the service performance of the ad hoc network is improved. And the requirements of large-scale networking, flexible clustering and partition service exchange of unmanned trunking communication are met.

The application discloses a time delay dynamic compensation method, device, equipment, medium and system, and when the method is applied to a synchronous network transmission device, comprises the following steps: sending a first time synchronization signal to a synchronous network probe device; receiving a first time synchronization signal deviation returned by the synchronous network probe device; the first time synchronization signal deviation is obtained by measuring and deviation analyzing the first time synchronization signal by the synchronous network probe device, and the first time synchronization signal deviation is a difference value between a first theoretical time and a first actual time; sending a second time synchronization signal to the synchronous network transmission device; the second time synchronization signal is obtained by compensating the first time synchronization signal according to the first time synchronization signal deviation and a reinforcement learning model. The time delay dynamic compensation method is realized based on the reinforcement learning model, can detect a time delay asymmetry value in real time and automatically compensate.

The invention provides a method and device for establishing a synchronous network, and the method comprises the steps: determining a cooperative access point AP needing cooperative transmission, and enabling the cooperative AP to receive clock sources of boundary clocks BC from different reference timing reference clocks PRTC at the same time; and determining whether a target AP needing timing synchronization adjustment exists in the cooperative APs, and if yes, performing PRTC switching on a clock source of the target AP. According to the method and the device for establishing the synchronous network provided by the invention, the switching of the PRTC or the BC can be flexibly carried out in a Cell-Free scene, so that the high-precision synchronization requirement can be ensured between any intra-station and inter-station cooperative transmission APs (Access Points).

The invention provides a transmission rate adjusting method and device, equipment and a storage medium, relates to the technical field of communication, and is used for solving the problem of how to dynamically adjust the transmission rate by synchronizing the change of a network state in the transmission process of a data packet so as to reduce the transmission delay of the data packet. The method comprises the following steps: acquiring a historical transmission rate and a historical transmission time delay of transmitted data of a data packet in a corresponding historical transmission time period; then, determining a first transmission rate and a second transmission rate of untransmitted data of the data packet in the target transmission time period according to the historical transmission rate and the historical transmission time delay; and then, according to the first transmission rate, the second transmission rate and the historical transmission rate, determining a target transmission rate of a third part of data in the untransmitted data in the remaining time period of the target transmission time period.

This invention provides a digital clock remote metering method based on network delay suppression. The method includes the following steps: constructing a hierarchical synchronization architecture, deploying a master clock source, multiple regional clock servers, and multiple terminal devices. The multiple regional clock servers are connected to the master clock source via dedicated fiber optic lines to obtain a reference time. Each regional clock server is connected to multiple terminal devices via 5G / Industrial Ethernet, forming a three-level synchronization network. Retrieval time (RTT) data between the terminal device and a regional server is obtained through bidirectional timestamp interaction, and messages are filtered according to preset rules. A hybrid delay compensation algorithm is used to calculate a final delay compensation value, which is used to calibrate the terminal clock. Finally, a time selection algorithm is used to obtain an optimal reference source for data synchronization analysis. This invention can solve the time deviation problem between the current time indication of a digital clock and the standard time, as well as data synchronization analysis issues.

A lighting control system (1) comprises at least one input device (2) configured to provide user-derived, status and / or environmental information to the lighting-control system responsive to a query command (10a) and / or at least one control gear (3) configured to provide power to one or more light sources and to provide status information to the lighting-control system responsive to a query command (10a). Further, it comprises an application controller (4) configured to receive the user-derived and / or environmental information or the status information, and configured to issue a query command (10a) in order to obtain the information or depending on the information obtained. There is further provided a reverse bridge (5), which is configured to communicate with the application controller (2) via a wired network bus (6) operated using a synchronous network protocol, which may conform with IEC 62386-101. The reverse bridge (5) is further configured to communicate with the at least one input device (2) and / or the control gear (3) via a network (7) operated using an asynchronous network protocol, which may conform with IEC 62386-104. The reverse bridge (5) is configured to enable bidirectional communication between the application controller (4) and the at least one input device (2) and / or the control gear (3).

The invention discloses a batch high-threshold active secret sharing method and device, and the method comprises the steps: building a high-threshold active secret sharing basis through a high-threshold module, adding a blind value for a distributor through the high-threshold module, and enabling the blind value to be shared with a secret s; realizing secret sharing of a reconstruction threshold between t + 1 and n-t in combination with a high-threshold asynchronous complete secret sharing protocol and a multi-valued verification Byzantine negotiation protocol; based on a high-threshold module, a dual-committee asynchronous complete secret sharing protocol and a randomness extraction technology based on an ultra-reversible matrix are adopted to reduce the protocol complexity and realize batch secret transfer through a batch sales sharing module; a batch high-threshold active secret sharing protocol Bat-DPSS constructed by using a high-threshold module and a batch sharing module adapts to an asynchronous or partially synchronous network environment without depending on a public key infrastructure PKI, and can support dynamic replacement of committee members and resist attacks of mobile opponents. According to the method, the network cost is low after distribution, and the efficiency is improved compared with that of an asynchronous DPSS protocol.

The present disclosure is related to systems, methods, and processor readable media for distributing digital data over networks. Certain embodiments relate to systems, methods, and devices used within such networks where at least a substantial portion of the interconnected devices are capable of interacting with one or more neighbouring devices, and then to form such a time synchronous network using local network information.

The application discloses a kind of based on the cable fault early warning method and system of distribution network of multi-terminal synchronous traveling wave detection, and it is related to cable fault detection technical field.The present application comprises the following steps: at least three synchronous detection ends are deployed in each branch point of cable, and sampling rate is synchronously triggered;Establish master-slave type synchronous network, and carry out spectrum correction to the data collected;Based on distributed temperature sensor data, construct real-time correction model;Extract early fault feature, and construct three-dimensional feature tensor;Edge node preliminary diagnosis is carried out, and network is optimized using transfer learning to carry out feature classification;Combined with cable load rate and environmental temperature and humidity, establish early warning threshold adaptive model based on fuzzy PID.The present application is through multi-terminal collaborative perception and intelligent analysis, and the scheme changes fault processing mode from "passive repair" to "active defense", improves distribution network cable artificial inspection efficiency, and early detects early fault hidden danger.

The application provides a high-voltage synchronous networking control power supply system, which comprises a host power supply and at least one slave power supply. The host power supply comprises a host first connecting end, a host second connecting end and a host signal transmission end. The slave power supply comprises a slave first connecting end, a slave second connecting end and a slave signal transmission end. The slave signal transmission end is electrically connected to the host signal transmission end. The host power supply and the slave power supply can prevent the element from burning out and the host from exploding in the case that at least one port of the host first connecting end, the host second connecting end, the host signal transmission end, the slave first connecting end, the slave first connecting end and the slave signal transmission end is miswired, thereby preventing the host from exploding caused by the miswiring.

The application provides a DC voltage synchronous network type inverter stability analysis method and system, comprising: establishing a mathematical model of a DC voltage synchronous network type inverter system; determining a transfer function of each link of the DC voltage synchronous network type inverter system; calculating an open loop transfer function of the DC voltage synchronous network type inverter system; calculating state data of the inverter at a steady state working point; calculating a phase angle margin and an amplitude margin of the DC voltage synchronous network type inverter system, and judging the stability of the DC voltage synchronous network type inverter system at the working point; and traversing all working points to judge the global stability of the DC voltage synchronous network type inverter system. The application can be used for analyzing the small disturbance stability of the DC voltage synchronous network type inverter, and particularly analyzing the influence of different grid parameters and control parameters on the stability of the system at a certain working point.

The application discloses an underwater wellhead distributed control system and a control method, relates to the technical field of underwater wellhead control, and comprises the following steps: acquiring real-time monitoring data sets of each control node of an underwater wellhead network, wherein the real-time monitoring data sets comprise wellhead pressure time series data, fluid component concentration data and the like; performing multi-source information fusion verification on the data sets to generate a state characteristic matrix; calling a wellhead cooperative control model for analysis and decision-making to generate a cooperative control instruction set; constructing an underwater space-time synchronization network based on underwater acoustic positioning data and the relative position relationship between nodes to distribute the control instructions; and collecting feedback data sets in the execution process, comparing the feedback data sets with preset targets to generate a control error vector, and performing online adaptive adjustment on the model. The method can realize accurate and synchronous distribution of instructions and dynamic optimization of the model, adapt to complex underwater environments, and guarantee stable operation of the wellhead.

The application discloses an ECG monitoring-oriented SNN learning accelerator, which comprises a register configuration module, an asynchronous global control module, an asynchronous neural network control module, an asynchronous binary classification CNN module, an asynchronous four-classification SNN module, an asynchronous weight update module and a memory management module. Firstly, the accelerator corresponds to a circuit to build a double-layer dynamic network, hierarchical dynamic power management is performed, and a four-classification SNN network of high-precision secondary abnormality detection is selectively activated through a binary classification CNN network of primary abnormality detection. Secondly, the accelerator supports on-chip reasoning and efficient learning, effectively eliminates the ECG feature differences of different individuals under the premise of guaranteeing the privacy and security of user data. Finally, the circuit uses a pulse neural network and an asynchronous logic circuit for control, and the power consumption is greatly reduced compared with a synchronous network.

The web-based EMR backup system empowers Healthcare facility administrators by building cyber resilience to ransomware threats, data breaches, power outages, or planned downtimes. A web-based EMR backup process is provided in embodiments of the invention, enabling administrators to activate a web-based EMR system in the event of a debilitating cyber-attack, power outage, or planned downtime, that allows healthcare professionals to maintain their daily workflow using the web-based EMR backup system in order to maintain business continuity and clinical resiliency. The web-based EMR system minimizes the risks that would arise due to errors generated because of traditional record keeping methods, such as manual record keeping, while also maintaining the workflow efficiencies modern EMR systems provide. The web-based EMR backup system synchronizes any changes made during the cyber-threat, power outage, or planned downtime once the main EMR is restored to ensure data consistency and provide significant financial savings by preventing the need to reconcile the two databases by hand.

The web-based EMR backup system empowers Healthcare facility administrators by building cyber resilience to ransomware threats, data breaches, power outages, or planned downtimes. A web-based EMR backup process is provided in embodiments of the invention, enabling administrators to activate a web-based EMR system in the event of a debilitating cyber-attack, power outage, or planned downtime, that allows healthcare professionals to maintain their daily workflow using the web-based EMR backup system in order to maintain business continuity and clinical resiliency. The web-based EMR system minimizes the risks that would arise due to errors generated because of traditional record keeping methods, such as manual record keeping, while also maintaining the workflow efficiencies modern EMR systems provide. The web-based EMR backup system synchronizes any changes made during the cyber-threat, power outage, or planned downtime once the main EMR is restored to ensure data consistency and provide significant financial savings by preventing the need to reconcile the two databases by hand.