427results about "Star/tree networks" patented technology

The invention discloses a cross-platform authority unified management method and system based on a multi-WEB system, and the key point of the technical scheme is that the method comprises the steps: obtaining organization structure data of an enterprise system, analyzing the organization structure data, constructing a multi-level tree topology network, forming organization entity topology parameters, analyzing the organization entity topology parameters, and storing the analyzed organization entity topology parameters into a database; according to the scheme, post authority baseline parameters are generated, dynamic optimization of channel selection is achieved by constructing a dual-channel transmission decision maker and combining real-time network state data and an inter-system interaction characteristic score table, and compared with a traditional static configuration mode, the mechanism can achieve dynamic optimization of channel selection according to parameters such as department communication strength, system transmission performance and safety scores. According to the method, the optimal transmission path is automatically selected, network congestion or high-delay nodes are avoided, cross-system adaptation rules are generated through mapping calculation of an authority interface strategy and post authority baseline parameters, the problem of authority granularity difference between different systems is solved, and the accuracy and consistency of authority distribution are ensured.

The invention relates to the technical field of coal mine fully mechanized mining, in particular to a coal mine communication network system based on a time-sensitive network, and the system comprises a wired communication system, the backbone network of the wired communication system is composed of a plurality of TSN network switches which are in ring network topology connection, and the wired communication system is used for accessing coal mine equipment as a terminal to a TSN network; the wireless communication system is connected with the wired communication system, consists of wireless communication equipment compatible with a TSN protocol, and is used for accessing the coal mine equipment into a TSN network through wireless connection; a communication system based on a time sensitive network (TSN) is established, a real-time, determined and reliable communication network is provided for a coal mine production system, wired and wireless communication systems are adopted, the whole coal mine production control system is covered together, and the requirement of automatic control for data communication is met.

In an aspect, systems and methods of connected nodes, including electronic control units (ECUs) in a vehicle, integrate remote direct memory access (RDMA) capabilities with time-sensitive networking (TSN) traffic shaper configurations in a manner that guarantees lossless, bounded-latency critical traffic (CT) streams, while also allowing for different classes of traffic to flow through the connected nodes. In another aspect, mechanisms are introduced to enable an automotive software framework (e.g., classic AUTOSAR) to support RDMA communications.

The invention discloses an airborne meteorological radar based on AFDX (Avionics Full Duplex Switched Ethernet) interface control, which mainly overcomes the defects of limited communication interface transmission rate, limited bandwidth, low reliability of a topological system and the like of the existing airborne meteorological radar. The system comprises an antenna, an antenna driver, a transmitter, a receiver, a control unit and a signal processing unit, the signal processing unit adopts an AFDX communication interface, specific functions are realized by an AFDX interface control module, and a DC / DC voltage conversion module performs voltage adjustment and signal enhancement; the Ethernet bus physical layer analysis module realizes a physical layer function of Ethernet communication; the AFDX protocol upper layer control module unpacks the digital signal according to the AFDX protocol and packs data information; and the state information conversion module is used for mutually converting the AFDX data and a radar working mode mark used in the radar. The method has the advantages of being high in transmission rate, wide in band, flexible and safe in network topology and high in real-time performance, and can be used for various aircrafts.

The invention relates to the technical field of wireless communication, in particular to a hospital district wireless network system supporting an internet of things protocol, which is characterized in that a multi-protocol dynamic scheduling engine intelligently selects a protocol stack by utilizing a lightweight reinforcement learning model through a three-layer dynamic decision-making architecture; the time-sensitive hybrid topology network adopts dual-mode topology fusion to provide a star network and low-delay time slot distribution for emergency equipment; the cross-protocol security aggregation gateway realizes cross-protocol data encapsulation and field-level mapping based on a unified data head of the medical Internet of Things; the intelligent spectrum anti-interference unit monitors and analyzes a hospital frequency band electromagnetic environment in real time to obtain a spectrum sensing information result, and feeds back the spectrum sensing information result to the multi-protocol dynamic scheduling engine and time-sensitive hybrid topology network. According to the invention, the multi-protocol dynamic scheduling engine is combined with the time-sensitive hybrid topology network, so that the communication problems of equipment types and complex environments can be solved.

A method for monitoring a data network in a motor vehicle is provided, wherein a switch device is operated in the data network, in which physical ports for receiving and for transmitting data packets are interconnected via a switch circuit. A network processor reads out detection data in monitoring positions of the data packets and forms pseudo target determination data for an associative memory therefrom, which actually is to process target determination data for a target port determination, and it is examined if certain action data results, which signalizes a necessity of a detection action, by inputting the pseudo target determination data into the associative memory.

The invention discloses a downlink message control method of a star topology network and a server for executing the control method. The star topology network comprises a server, a plurality of gateways and a plurality of nodes. The nodes communicate with the server through the gateway, and the server allocates a timer for each of the gateways. The control method comprises the following steps: 1, judging whether a node is newly accessed to the star topology network; if so, entering the step 2; Step 2, establish a node-gateway topology relationship to determine a coverage area of each gateway and a coverage area of each node; 3, allocating one of a plurality of downlink frequency points to a newly access node; 4, requesting the gateway to send the message request when the frequency requiredfor the message request to be sent by the gateway is not used by the gateway in the coverage area of the destination node of the message request. The invention can more efficiently solve the problem of co-frequency interference of downlink communication of star topology network.

The invention discloses a cluster collection communication system applied to AI data stream processing, which relates to the technical field of distributed systems and network engineering and comprises a topology network deployment module, a data stream spatio-temporal data acquisition module, an optimization verification module, a state monitoring and early warning module and a visual traceability module. The topology network deployment module synchronously processes AI data streams, the data stream spatio-temporal data acquisition module extracts an entropy value and a covariance matrix, the optimization verification module outputs optimization parameters and a credible verification result, the state monitoring early warning module sets an adaptive threshold value to realize graded early warning, and the visual traceability module generates a three-dimensional thermodynamic diagram and a traceability graph. According to the method, the data stream processing efficiency is improved through the star-ring hybrid topology and the low-delay protocol, the decision credibility is enhanced in combination with quantum optimization and block chain verification, accurate early warning and three-dimensional visual traceability acceleration fault positioning are realized by using dynamic weighted monitoring and an adaptive threshold, and an efficient and intelligent full-stack solution is provided for AI trunking communication.

A switched network, an online computing method for a switched network, an electronic device, and a non-transitory computer-readable storage medium. The switching network includes a plurality of switching nodes connected to each other to provide a communication network, where the plurality of switching nodes each include an in-network computing proxy node configured to receive and perform in-network computing tasks. The switching network can reduce communication delay and improve efficiency.

The invention discloses an LVDS (Low Voltage Differential Signaling) type daisy chain communication method based on effective signal detection, which relates to the technical field of communication, and comprises the following steps: S1, setting acquisition nodes, and connecting all the acquisition nodes in series by using a differential LVDS link to form a daisy chain topological structure in a grading manner; s2, keeping the transceivers in the daisy chain topological structure in a sleep mode and keeping real-time detection; s3, when a high pulse signal is detected, waking up the LVDS module to receive data; and S4, after confirming that the parameters take effect, generating a response packet, returning the response packet to the computer end, returning to a dormant state, and forming a communication transmission energy-saving closed loop. According to the invention, through a mechanism of event triggering and local node participation, the system is awakened when a high-pulse effective signal is detected, so that the power consumption overhead caused by that all nodes are always active in a traditional communication architecture is avoided; the method has the advantages of greatly reducing the average power consumption of daisy chain data communication, improving the overall response rate of the system and reducing the confirmation time delay.

An inter-chip timing synchronization method comprising: for each pair of chips in a plurality of chips of a semiconductor device: determining a first one-way latency for transmissions from a first chip in the pair to a second chip in the pair of chips, and determining a second one-way latency for transmissions from the second chip in the pair to the first chip in the pair of chips; receiving, at a semiconductor device driver, the first one-way latency and the second one-way latency for each pair of chips; determining, by the semiconductor device driver and from the respective first one-way latency and the second one-way latency for each pair of chips, a loop latency between each pair of chips; adjusting, by the semiconductor device driver and for at least one pair of chips, a local counter of the second chip in the at least one pair of chips based on a characteristic inter-chip latency of the semiconductor device and the first one-way latency of the at least one pair of chips.

To reduce the labor, time and cost required for wiring construction.SOLUTION: A control panel 1a includes a controller 100 that performs wired communication with a sensor or a device to be controlled, and a wireless communication device that wirelessly transmits data received via wired communication from the controller 100 to an external central monitoring device 500, and transmits data received wirelessly from the central monitoring device 500 to the controller 100 via wired communication.SELECTED DRAWING: Figure 1

The invention discloses a heterogeneous networking architecture and method based on an electric red-hong system distributed soft bus, the heterogeneous networking architecture comprises an equipment grading module, a hybrid topology networking module, a main / standby path configuration module and a communication protocol adaptation module, the equipment grading module divides equipment into a rich type and a thin type according to capability, the rich equipment takes the core role of relay and calculation, and the thin equipment takes the core role of relay and calculation; the thin device focuses on the basic function, accurate resource allocation is achieved, and computing power waste is avoided; the hybrid topology networking module enables rich equipment to construct a mesh topology through a high-speed link, and multi-path transmission of key data is guaranteed; the thin device is connected with the rich device in a single-hop mode to form a star topology, connection is simplified, the communication range is expanded by means of the rich device, and efficiency and coverage are both considered; the main and standby path configuration module is used for configuring double paths for equipment, and automatic switching is realized when a main path fails, so that the anti-fault capability is greatly improved, and equipment disconnection caused by a single link fault is completely eradicated; the communication protocol adaptation module dynamically selects a protocol according to needs, breaks the protocol barrier, reduces the conversion delay, and improves the overall communication efficiency and compatibility.

A deep well ventilation system is a core link for guaranteeing safe production of a mine and is also a key technical challenge for realizing efficient and green mining of an ultra-large deep well mine. Ventilation energy-saving optimization is an important subject which must be solved by deep well mining. In a deep well ventilation system, reasonable configuration of a communication network structure is a basic guarantee for achieving real-time monitoring of underground environment data and reliable transmission of control instructions. The main contradiction faced by the current deep well communication network design lies in that the network redundancy design introduced for improving the reliability of data transmission can enhance the fault-tolerant capability of the system, but also causes the problems of complex network topology structure and increased construction cost at the same time. In order to solve the technical problem, the invention provides a communication network design and configuration method suitable for a mine ventilation scene. According to the method, a quantitative relation model of the network construction cost and the safety performance is innovatively established, and the optimal network node configuration scheme is determined through target optimization. Particularly, according to the method, the high reliability of the ring network and the high efficiency of the tree network are fused, so that the optimal design of the communication network topology structure is realized, and the network economy is remarkably improved while the system reliability is ensured.

A chassis front-end is disclosed. The chassis front-end may include a switchboard including an Ethernet switch, a Baseboard Management Controller, and a mid-plane connector. The chassis front-end may also include a mid-plane including at least one storage device connector and a speed logic to inform at least one storage device of an Ethernet speed of the chassis front-end. The Ethernet speeds may vary.

To provide systems, methods, and devices for improved routing operations in a network computing environment.SOLUTION: An architecture 400 for host routed overlay includes a virtual customer edge router (virtual CE router), a plurality of host virtual machines, and a routed uplink from the virtual customer edge router to one or more of a plurality of leaf nodes L1 to L4. The architecture is such that the virtual customer edge router provides localized integrated routing and bridging (IRB) service for the plurality of host virtual machines of the host routed overlay.SELECTED DRAWING: Figure 4

A main and auxiliary engine communication control method for multiple ship propellers relates to the technical field of ship power control, and comprises a main control propeller and a plurality of auxiliary control propellers, the main control propeller is installed at the leftmost position of a ship body tail plate, and the auxiliary control propellers are installed at other positions of the ship body tail plate in parallel. MAC addresses with the same mark code segment are pre-burnt in the main control propeller and the auxiliary control propeller; the master control propeller establishes a bidirectional data link with the remote controller through a wireless communication protocol; a single-hop star topology network is established between the main control propeller and the auxiliary control propellers, and the main control propeller sends a composite instruction packet to each auxiliary control propeller through a single broadcast channel; and each auxiliary control thruster returns state data to the main control thruster through an independent time division multiple access uplink channel. According to the invention, the defects in the prior art are overcome, the rapid identification and accurate positioning of the equipment are realized, the management and maintenance of the system are simplified, and the flexibility and expandability of the system are greatly improved.

Apparatus and methods for constructing Network on Chips (NoCs) by algorithmically elaborating one or more of Network on Chips (NoCs) through a hierarchical topology composed of instantiations of sub-NoCs and leaf components, and one or more connectivity definitions. Designing NoCs using one or more instantiations of sub-NoCs reduces overheads during chip backend processes, such as for timing closure.

The present invention includes a system for managing a battery, the system includes a wireless communication unit that communicates with a first upper-level battery management system performing communication using a first communication channel, a communication abnormality detection unit that detects a communication abnormality of the first upper-level battery management system performing communication using the first communication channel, and a channel change unit that changes the communication channel of the wireless communication unit to a second communication channel different from the first communication channel when the communication abnormality of the first upper-level battery management system is detected by the communication abnormality detection unit.

A system, method, and program are provided that use a simple configuration to control communication bandwidth for each residence in an apartment building in an Internet Service Provider (ISP) communication network. [Solution] The communication bandwidth control system 100 comprises a setting device 180 that sets up a virtual direct connection between an apartment building router 210 that relays specified information including private addresses for each residence in the apartment building A200 in the apartment building A200 and a center router 110 that relays in the ISP's communication network, a policy router 130 that sets up a communication path in the ISP's communication network so as to control the communication bandwidth based on the private addresses included in the specified information acquired in the communication network, and an address conversion device 170 that is provided between the ISP's communication network and the Internet and converts private addresses into global addresses.

Provided is a relay device including: a relay unit configured to perform a relay process for a frame transmitted and received between a plurality of function units; and a relay management unit. The relay unit receives, from a function unit, a target frame. When a content of the target frame satisfies a predetermined condition, the relay management unit stores, in the target frame, position information which is information regarding a position, in the in-vehicle network, of a function unit as a request source of a service related to the target frame or a function unit as a request destination of the service related to the target frame, and outputs the target frame having the position information stored therein, to the relay unit. The relay unit transmits the target frame received from the relay management unit, to a function unit which is a destination of the target frame.

In the present invention, an optical path-designing device, by using a scheme that has been reinforcement-trained so as to reduce the amount of optical fiber resources used in an optical network having a plurality of nodes connected by optical fibers, selects an optical path demand to which the optical fiber resources are to be allocated, on the basis of frequency allocation state information indicating available frequencies in each of the optical fibers and optical path demand group information indicating a plurality of optical path demands indicated by combinations of start point nodes and end point nodes. The optical path-designing device refers to the frequency allocation state information, and determines a path and a frequency in the optical network to be allocated to the selected optical path demand such that a low or high frequency is given higher priority.

According to an aspect, there is provided an elevator communication system. The system comprises an ethernet bus; a controller communicatively connected to the ethernet bus and being configured to communicate via the ethernet bus; a plurality of elevator system nodes communicatively connected to the ethernet bus and being configured to communicate via the ethernet bus, wherein each elevator system node is associated with a respective landing; a landing bus segment at each landing, the landing bus segment being connected to the elevator system node associated with the landing; landings nodes at each landing connected to a respective landing bus segment. Each elevator system node of the plurality of elevator system nodes is provided with a connecting unit to enable communication between the ethernet bus and the respective landing bus segment.

A method for operating a communications network that includes a computing system, at least one intermediate control unit, and at least one execution unit for each intermediate control unit. The at least one intermediate control unit is communicatively connected to the computing system using a first communication system. Each of the at least one execution unit is communicatively connected to the associated intermediate control unit using a second communication system, which is a master-slave communication system, and used as a slave. A message configuration table for each second communication system is stored in the computing system, the message configuration table indicating a temporal sequence of data to be transmitted on the second communication system in question. For a communication with one of the execution units, data are sent from the computing system, via the associated intermediate control unit, to the execution unit according to the associated message configuration table.

An optical communication device includes a signal multiplexing unit that multiplexes a plurality of client signals and a signal transmission unit that converts a first multiplexed signal obtained by the multiplexing to an optical signal and transmits the optical signal. The optical communication device is a device capable of receiving data traffic greater than data traffic corresponding to a predetermined communication bandwidth.

A system that supports geographically dispersed remote optical line terminals.

To provide communication equipment which can detect abnormality occurring in the equipment, an abnormality detection method, and an abnormality detection program.SOLUTION: Communication equipment is provided, comprising: a communication portion performing communication with external equipment; a voltage monitoring portion monitoring a power source voltage and outputting a voltage drop signal if the power source voltage becomes less than a threshold value; a control portion transmitting power off notification to the external equipment when receiving the voltage drop signal from the voltage monitoring portion; and a storage portion storing notification information indicating that power off notification has been transmitted and power off information indicating that power has been turned off, the control portion detects failure of the voltage monitoring portion based on the notification information and the power off information, at start up.SELECTED DRAWING: Figure 3

A communication device according to an embodiment of the present disclosure comprises: a communicator; and a processor configured to: if a network composed of a first topology including a star topology or a line topology is included on a communication path connecting the communication device and the other communication device, configure data to be transmitted to the other communication device through a first interface for accessing a RAPIEnet (Real-time Automation Protocol for Industrial Ethernet)-based upper layer and an Internet Protocol (IP)-based lower layer, and transmit the data to the other communication device through the communicator using the communication path.

The present disclosure relates to the technical field of bus communication, and provides a networking system and method based on IEEE 1394 protocol. The system comprises a central hub, a target hub and a target terminal device. The central hub comprises a plurality of central connection ports, and there is an intercommunication data link between each two of the central connection ports. The target hub comprises a target uplink port, which is connected to one of the central connection ports through a target cable complying with IEEE 1394 technical specification. The target terminal device is connected to one of the target downlink ports of the target hub through a target cable. If a first connection port of the central connection ports receives a data packet sent by the target terminal device, the central hub forwards the data packet to a second connection port of the central connection ports based on a load balancing algorithm. The technical scheme provided by one or more embodiments of the present disclosure can effectively integrate the device resources of multiple hubs.

To provide a communication system and an authentication method that can expand the application range of devices that can perform authentication.SOLUTION: A communication system includes a wireless communication system that connects a terminal device 100 functioning as an authenticated device and an ONU 200 which is a relay device functioning as an authenticating device so that they can wirelessly communicate with each other, and a wired communication system that connects the ONU 200 and an OLT 300 which is an authentication server so that they can perform wired communication with each other. The terminal device and the relay device communicate with each other using signals based on EAPoW, and the ONU 200 and the OLT 300 communicate with each other using signals based on EAPoL to authenticate the terminal device 100.SELECTED DRAWING: Figure 1