1474 results about "Ethernet communication" patented technology

A method and system for interworking between an Ethernet communication network and a frame relay network, in which a first network interface is operable to communicate with the Ethernet communication network using an Ethernet communication protocol. A second network interface is operable to communicate with the frame relay communication network using a frame relay protocol. A processing unit is in communication with the first network interface and the second network interface, in which the processing unit encapsulates frames received from the Ethernet network into frame relay frames, decapsulates frames received from the frame relay network to recover Ethernet frames and maps parameters corresponding to the received one of the frame relay and Ethernet frames into the other of the frame relay and Ethernet frames, the mapped parameters including connection configuration control plane information and data plane parameters corresponding to individual frames.

An apparatus is provided for communicating over a network images captured by a digital camera, such as a digital camera without an on-board network interface. The apparatus includes a housing separate from the digital camera having a processing unit with memory for storage of images, a camera interface card received in a memory card slot of the digital camera, and a cable or wireless connection coupling the camera interface card to the processing unit for data communication. The apparatus emulates a memory card to the digital camera, such that the digital camera's electronics operate with the memory of the processing unit through the camera interface card, as if such memory was on a memory card located in slot of the digital camera. Images captured by the digital camera are transferred, via the camera interface card and cable, to memory of the processing unit, and the digital camera can access images stored in memory of the processing unit. The processing unit has a wireless data network interface and Ethernet communication interface, whereby captured images stored in memory of the processing unit are queued in real-time for network transfer, and subsequently transferred via one of the network communication interfaces, to a computer system, such as an web site or file server, at a network destination address configurable in the processing unit. Data may be inputted by the user before and/or after image capture for association with images prior to their network transfer. The housing for the processing unit may be shaped like a motor drive unit and attached to the bottom of the camera, or worn by the user of the camera in the form of a belt pack or backpack.

An automation system and process of operating an automation system in a Web Service environment, includes providing at least one client and at least one device, the at least one client and the at least one device configured with a web services for devices stack protocol, connecting a network includes at least one server with the web services for devices to the at least one client and the at least one device, and transmitting automation-based control and communication between the at least one client and at least one device, wherein the at least one client comprises one of a touch screen display and a handheld controller and the at least one device comprises an audio system, a video system, an intercom system, a lighting system, a security system, a link, and a HVAC system.

A low cost mechanism that may be used to extend Ethernet capability to low end devices provides sufficient capacity to support Ethernet communications using only a single twisted pair medium. Because only a single twisted pair is used, the overall cost, complexity and size associated with the integrating Ethernet functionality into an end device is reduced. A distributed power system delivers power to a Data Terminal Equipment (DTE) device over the single twisted pair medium. With such an arrangement, Ethernet capability and power may be simultaneously delivered to low end devices at a reduced cost.

A method and system for service interworking between an Ethernet communication network and an ATM network, in which a first network interface is operable to communicate with the Ethernet communication network using an Ethernet communication protocol. A second network interface is operable to communicate with the ATM communication network using an ATM protocol. A processing unit is in communication with the first network interface and the second network interface, in which the processing unit terminates frames received from a one of the ATM communication network and the Ethernet communication network and maps parameters corresponding to the received one of the ATM and Ethernet frames into the other of the ATM and Ethernet frames. The mapped parameters include connection configuration control plane information and data plane parameters corresponding to individual frames. The described methods can support single or multiple QoS levels.

The invention discloses an information management system for on-line production of a printing machine, which is characterized in that a web server and an upper management browser terminal which are mutually connected are arranged in an MES internal Ethernet to be used for realizing on-line remote diagnosis and maintenance; the MES internal Ethernet is respectively connected with an OPC server and an equipment station browser terminal, and the MES internal Ethernet is also connected with an equipment industrial Ethernet of a plurality of printing machine units through the OPC server; an Hub, an HMI, a CPU and a controller are arranged in the equipment industrial Ethernet; the Hub is externally connected with the OPC server; the Hub is respectively connected with the HMI, the CPU and the controller; and the controller is connected with a PLC control system in the printing machine equipment. The invention also discloses a method of on-line control and real-time data acquisition of the control system. The invention realizes the real-time network monitoring, parameter reporting, production management and analytic statistics under the B/S structure in an Ethernet communication mode, and realizes multi-browser and multi-user operation.

The invention discloses an auto meter visual detecting system based on a computer, comprising a light source, a detecting box body, a camera connected with a PC control system, and an analog signal generator connected with the PC control system, wherein the analog signal generator comprises a frequency circuit and a resistance circuit and is used for receiving commands sent by the PC control system so as to generate frequency and a resistance signal needed by meter detection; the PC control system comprises an input module, a position adjusting module, a meter dial plate identification module,a communication setting module, a camera target capturing module and an output module which are respectively connected with a PC. The position adjusting module promotes two stepping motors in a camera position adjusting mechanism to run by sending serial port commands; and the communication setting module is used for realizing Ethernet communication setting and serial port communication setting.The camera comprises an image displaying module and an image processing module. The invention also discloses a detecting method of the detecting system.

A system including LED assemblies, which system can efficiently and consistently provide a desired color output. The system includes a network and a plurality of light emitting diode (LED) assemblies connected to the network. Each LED assembly includes a unique address. Further, a control unit is connected to the network and is configured to send light control signals to the LED assemblies individually. The light control signals include color information in a universal color coordinate system. The universal color coordinate system can be the CIE color coordinate system and the network can utilize an Ethernet communication protocol.

The invention relates to a network system for monitoring valves in a facility, which comprises: (a) a plurality of valve monitoring devices—VMDs, each monitoring device is affixed to a valve, and comprises: (a.1) a sensor for sensing the status of the valve; (a.2) short range wireless communication unit for transmitting the status as sensed by said sensor, and for transmitting the status as sensed, together with an identification of said device, to one or more Valve Device Readers—VDRs located within said short range; (a.3) mechanism for affixing the device to the monitored valve in a manner which does not disturb the normal operation of the valve; and (a.4) one or more VDRs for receiving the transmission of the valve status and MD identification from said VMDs, and for forwarding the same to a server by Ethernet communication.

The invention discloses an automatic system fault handling method of a distribution network containing a plurality of distributed power supplies. The output mode of traditional distribution network protection and feeder automation cannot meet the requirement on distribution network fault handling when a system containing a plurality of distributed power supplies works, and must be improved and perfected. The method establishes an independent fault information transmission channel with optical fiber Ethernet equipment through an SOCKET connection method on the basis of using light Ethernet communication; adopts a peer-to-peer communication mechanism, realizes the peer-to-peer communication between the fault information of terminal devices, and effectively solves the problems of production, feeder automation and the like under the circumstance of a looped network. The automatic system fault handling method of the distribution network containing a plurality of distributed power supplies has very good sensitivity, selectivity and quickness.

A method and system for interworking between an Ethernet communication network and an ATM network, in which a first network interface is operable to communicate with the Ethernet communication network using an Ethernet communication protocol. A second network interface is operable to communicate with the ATM communication network using an ATM protocol. A processing unit is in communication with the first network interface and the second network interface, in which the processing unit encapsulates frames received from the Ethernet network into ATM frames, decapsulates frames received from the ATM network to recover Ethernet frames and maps parameters corresponding to the received one of the ATM and Ethernet frames into the other of the ATM and Ethernet frames, the mapped parameters including connection configuration control plane information and data plane parameters corresponding to individual frames.

The invention provides an intelligent venous transfusion monitoring system, which comprises a PC, a ward-level controller, sickbed-level controllers, infusion supports and a handheld alarming device, wherein the ward-level controller is arranged according to a ward number; the ward-level controller performs wireless communication with the sickbed-level controllers correspondingly arranged in the ward with the ward number; the ward-level controller is connected with the PC by an Ethernet for communication; and each infusion support is provided with a sickbed-level controller correspondingly. The system has the advantages of realizing 24 hour monitoring, avoiding errors made by medical-care personnel due to mistake or fatigue, reducing the labor intensity of the medical-care personnel and making up for the disadvantage of incapability of the medical-care personnel for 24 hour monitoring. In the invention, the real-time monitoring of the whole infusion state as well as abnormal condition alarming and management is realized, and the combination of infusion and ward emergency call and ward management systems. The monitoring system has high feasibility and is built on the basis of mature technology of sensors, electromagnetic valves, wireless communication, Ethernet communication, singlechips and the like.

Aspects of a method and system for link adaptive Ethernet communications are provided. In this regard, characteristics of a cable attached to a network device may be determined, and the network device may be configured based on the determined characteristics. One or more of a plurality of Ethernet PHYs within the network device may be selected to be utilized for communicating over the cable based on the determined characteristics of the cable. The selected Ethernet PHYs may be configured based on the determined characteristics. A modulation scheme utilized by the selected Ethernet PHYs may be configured based on the determined characteristics. A modulation scheme utilized by each of the selected Ethernet PHYs may be configured independently from a modulation scheme utilized by other ones of the selected Ethernet PHYs.

The invention discloses a ring redundant real-time Ethernet communication method which is characterized in that chain networks are compatible with each other through a communication terminal node automatic arbitration mechanism, the effect caused by false code transmission is reduced in a manner of transmitting redundant data, the normal operation of two chain network maintenance systems can be automatically formed after intermediate network disconnection or node failure, so that the reliability of the systems is greatly improved. The network at least contains a main node and a plurality of slave nodes; each node is provided with a standard Ethernet network interface A and a standard Ethernet network interface B; a network cable starts from the network interface A of the main node, connects all the slave nodes together in a cascading manner and is finally connected with the network interface B of the main node to form a ring network loop; a ring network is compatible with a chain Ethernet by adopting a terminal slave node automatic arbitration mechanism and realizes self-recovery after network disconnection; and the whole communication process is divided into three stages, i.e. enumeration, configuration and cyclic communication. According to the situation that the network disconnects from the middle part due to failure, the systems automatically and continuously keep the communication with the main node according to the two chain networks, thereby enhancing the reliability and the fault-tolerant ability of the systems.

Training, refreshing and/or updating Ethernet link partners for silent channels and/or silent directions of channels may be determined based on control parameters. This may be used to improve energy efficiency in Ethernet communication. Control parameters may comprise a default value and/or may be determined based on prior training, refreshing and/or updating. New values for the control parameters may be generated based on a magnitude of change between current and prior control parameter values or based on performance such as bit error rate. User input may be utilized to determine when to execute the training, refreshing and/or updating. The training, refreshing and/or updating may be done for one or more of a near-end crosstalk canceller, alien near-end crosstalk canceller, far-end crosstalk canceller, alien far-end crosstalk canceller and echo canceller. After the training, refreshing and/or updating, the silent channels may transition to active and/or may remain silent.

The invention discloses a method for recovering networks in a ring network. Ethernet switch equipment enters a communication status after an initial configuration and precise time synchronization based on an IEEE 1588 protocol. Each equipment according to the configuration of the network sends out time-sharing equipment statement messages and link circuit checking messages. The link circuit checking messages are sent by a multicast address in two ways; if a port of equipment receives no link checking messages of a connected port after the time out, then a network trouble can be determined and link circuit alarm messages are sent by the multicast address in two ways for alarming. The rest equipments in the ring network after receiving the link circuit alarm message, then empty an FDB list and utilize a backup link circuit to restart path learning. By adopting the method of the invention, any communication link circuit failure in the ring network can be quickly detected and correspondingly processed, thereby meeting the availability requirements of Ethernet communication by the industrial automatic field.

A method and system for interworking between an Ethernet communication network and a frame relay network, in which a first network interface is operable to communicate with the Ethernet communication network using an Ethernet communication protocol. A second network interface is operable to communicate with the frame relay communication network using a frame relay protocol. A processing unit is in communication with the first network interface and the second network interface, in which the processing unit terminates frames received from a one of the frame relay communication network and the Ethernet communication network and maps parameters corresponding to the received one of the frame relay and Ethernet frames into the other of the frame relay and Ethernet frames. The mapped parameters include circuit configuration control plane information and data plane parameters corresponding to individual frames.

The invention discloses an Ethernet communication method and system and an SDN exchanger. The method comprises the steps that the SDN exchanger reports the MAC address learned locally to an integrated controller, and the integrated controller issues forwarding tables of forwarding ports corresponding to target MAC addresses to all SDN exchangers under a management domain based on whole network topology automatic finding and route computing based on strategies; and the SDN exchangers achieve Ethernet frame forwarding according to the MAC address forwarding tables learned locally and the MAC address forwarding tables issued by the integrated controller. The integrated controller issues the MAC address forwarding tables to the SCN exchangers in the management domain, the boundedness that a traditional Ethernet exchanger learns whole network MAC addresses through a data forwarding plane is avoided, and the problems that broadcast storm and spanning tree protocols exist in the traditional Ethernet, so that a large amount of redundancy chain blocking is caused, network convergence speed is slow, and traffic engineering cannot be achieved are solved.

The invention discloses a bullet train state monitoring system and a multifunctional hybrid gateway thereof. The multifunctional hybrid gateway comprises a field bus communication module, a wireless communication module, an Ethernet communication module, a main controller, a storage circuit and a real-time clock circuit, wherein the main controller is connected with the field bus communication module, the wireless communication module and the Ethernet communication module and used for performing protocol conversion and data processing on interactive data of the field bus communication module, the wireless communication module and the Ethernet communication module. The multifunctional hybrid gateway disclosed by the invention can realize the functions of protocol conversion, network transmission, data fusion and the like, and has the advantages of combining wired transmission with wireless transmission and real-time data transmission with high-capacity data transmission.

Systems and methods allow communication between an Ethernet network and non-Ethernet devices. An Ethernet-to-analog adapter allows translation of analog signals for Ethernet communication, and further allows translation of Ethernet signals for analog communication with analog devices. Ethernet-to-analog adapters allow for power management and monitoring of attached analog devices and employ Power over Ethernet (PoE) to supply power to analog devices. A rechargeable battery may be provided to satisfy the peak power requirements of an attached analog device.

The control system includes VME bus chassis, CPU main board, Ethernet comm interface board (CIB), reflection memory CIB, PROFIBUS CIB, digital signal interface board, analog signal interface board, and electrical motor control board (MCB). Boards and cards are inserted to backboard inside the VME bus chassis. Through VME bus, boards and cards in backboards inside same chassis can communicate each other through VME bus. Each board contains VME bus controller. VME bus controller implements functions of gating board, bus arbitration, interrupt response control, and reading and writing data. Each board possesses own address. Through VME bus, gated board exchanges data to CPU board. Using shared memory exchanges data between CPU boards in same backboard bus. The reflection memory CIB executes remote comm and real time control among multiple control systems. MCB can exchange data to CPU main board, and control motor through optical fiber interface driven by power switch in bottom layer.

The invention discloses a resident intelligent energy management system suitable for an intelligent power grid. Due to the adoption of the resident intelligent energy management system, peak and off peak load regulation of a power load is realized, and the power quality and power reliability are improved. An intelligent energy management controller and an intelligent electric meter are arranged in the home of each resident; a control terminal is arranged on each controllable domestic appliance and a user switch respectively; a distributed power supply accessing device is arranged on each distributed power supply; the controller is connected with the control terminal and the distributed power accessing device through a Zigbee wireless communication network; the intelligent electric meter is connected with the distributed power supply accessing device and the controllable domestic appliance; the controller is communicated with the intelligent electric meter through a bus; the intelligent electric meter is further connected with the secondary sides of a voltage mutual inductor and a current mutual inductor; the controller undergoes information interaction with a high-level measuring system AMI (Advanced Metering Infrastructure) of a main station through Ethernet communication; the controller is used for controlling switching of the control terminal and the distributed power supply accessing device; the control terminal is used for submitting the state of the switch to the controller; the controller is used for monitoring the state of the switch.

The invention provides an Izhikevich neural network synchronous discharging simulation platform based on an FPGA. The simulation platform comprises an FPGA neural network computing processor and an upper computer which are connected with each other. The FPGA neural network computing processor comprises an FPGA chip, an off-chip memorizer array and an Ethernet communication module, wherein the FPGA chip receives an upper computer control signal output by the off-chip memorizer array, and receives a presynaptic membrane potential signal output by the off-chip memorizer array. The upper computer is in communication with the FPGA chip and the off-chip memorizer array through a VB programming realization man-machine operating interface and the Ethernet communication module, and a neural network model is established on the FPGA chip through Verilog HDL language programming. The Izhikevich neural network synchronous discharging simulation platform has the advantages that the hardware modeling of the phenotype and physiological type neural network model is achieved through an animal-free experiment serving as a biological neural network on the basis of an FPGA neural network experiment platform conducting computation at a high speed, and the consistency with true biological nerve cells on the time scale can be achieved.

The invention belongs to the technical field of Ethernet communication, in particular relating to a method for realizing redundant ring and network recovery in Ethernet. An Ethernet ring network is formed by a plurality of switches which are connected into a ring physically and are in a chain structure logically. The invention is characterized in that only one of the switches is set to be a master station in charge of controlling the logic structure of network, the other switches are set to be slave stations; the master station and each slave station are provided with two ring ports; the state switching of the ring ports of each switch can realize backup of redundant ring chain, thus realizing network redundancy and recovery. The invention has the beneficial effects of being capable of rapidly detecting chain fault in the ring, building new network topology to recover network in occurrence of fault, realizing backup of redundant ring chain through state switching of ring port of each switchboard; and the invention has simple and effective method and can realize high applicability of industrial control network.

The invention discloses a hybrid network gateway combining a CAN with an Ethernet network in a body and a data exchange method thereof. The hybrid network gateway comprises a CAN message transmitting and receiving module, an Ethernet message transmitting and receiving module, a signal processing conversion module and a logic main control module, wherein the CAN message transmitting and receiving module is used for carrying out communication with equipment on a CAN bus on a vehicle; the Ethernet message transmitting and receiving module is used for carrying out communication with equipment on the Ethernet and comprises an upper computer and novel Ethernet vehicle-mounted equipment; the signal processing conversion module is used for parsing, packaging and forwarding a CAN message and an Ethernet message and enabling the CAN message and the Ethernet message to accord with a requested protocol and is compatible to the universal Ethernet; and the logic main control module is used for determining a message distribution direction, responding to instructions, such as related diagnosis and like, which are sent by an Ethernet diagnosis port, and controlling onboard peripheral equipment to acquire data information. One gateway can simultaneously communicate with multiple paths of CAN networks. The hybrid network gateway uses a vehicle-mounted twisted-pair as an Ethernet communication bus, and compared with conventional RJ45, has the advantages of low cost, interference resistance and the like. A refresh instruction (such as a 3E maintaining instruction) on the vehicle-mounted equipment is subjected to special processing, so that both the vehicle-mounted CAN equipment and the gateway can be efficiently refreshed by the Ethernet.