HARDWARE ASSIST MECHANISMS FOR ALIVE DETECTION OF REDUNDANT DEVICES

    公开(公告)号:US20170364424A1

    公开(公告)日:2017-12-21

    申请号:US15594857

    申请日:2017-05-15

    CPC classification number: G06F11/2028 G06F11/2005 G06F11/2038 H04L69/40

    Abstract: An apparatus includes a first hardware assist device having at least one transmitter, at least one receiver, and a timer. The at least one transmitter is configured to transmit at least one first signal to a second hardware assist device of a redundant second apparatus. The at least one first signal indicates that the apparatus is functional. The at least one receiver is configured to receive at least one second signal from the second hardware assist device. The at least one second signal indicates that the second apparatus is functional. The timer is configured to control a driver to block transmission of the at least one first signal in response to a fault associated with the apparatus. The apparatus also includes at least one processing device configured to perform one or more actions in response to a loss of the at least one second signal from the second apparatus.

    METHOD, DEVICE AND SYSTEM FOR COMMUNICATING IN A RING NETWORK
    13.
    发明申请
    METHOD, DEVICE AND SYSTEM FOR COMMUNICATING IN A RING NETWORK 审中-公开
    用于在环网中通信的方法,设备和系统

    公开(公告)号:US20160373272A1

    公开(公告)日:2016-12-22

    申请号:US15177691

    申请日:2016-06-09

    CPC classification number: H04L12/437 H04L1/242 H04L12/44 H04L41/0659

    Abstract: A communication method includes receiving data messages at a specified one of a plurality of communication devices in a ring network and detecting a status of the ring network. The communication method also includes changing a port of the specified communication device from a blocking state to a forwarding state in response to detecting a failure in the ring network. The communication method further includes filtering and forwarding the received data messages in the ring network, where the received data messages that originated from the specified communication device are blocked from further forwarding at the specified communication device. In addition, the communication method includes changing the port of the specified communication device from the forwarding state to the blocking state in response to detecting a recovery of the ring network.

    Abstract translation: 通信方法包括在环网中的多个通信设备中的指定的一个处接收数据消息并检测环网的状态。 通信方法还包括响应于检测到环网中的故障,将指定的通信设备的端口从阻塞状态改变为转发状态。 该通信方法还包括在环形网络中过滤和转发接收到的数据消息,其中从指定的通信设备发出的所接收的数据消息被阻止在指定的通信设备处进一步转发。 此外,通信方法包括响应于检测到环网的恢复,将指定的通信设备的端口从转发状态改变为阻塞状态。

    Method, device and system for communicating in a ring network

    公开(公告)号:US10230540B2

    公开(公告)日:2019-03-12

    申请号:US15177691

    申请日:2016-06-09

    Abstract: A communication method includes receiving data messages at a specified one of a plurality of communication devices in a ring network and detecting a status of the ring network. The communication method also includes changing a port of the specified communication device from a blocking state to a forwarding state in response to detecting a failure in the ring network. The communication method further includes filtering and forwarding the received data messages in the ring network, where the received data messages that originated from the specified communication device are blocked from further forwarding at the specified communication device. In addition, the communication method includes changing the port of the specified communication device from the forwarding state to the blocking state in response to detecting a recovery of the ring network.

    Built-in ethernet switch design for RTU redundant system

    公开(公告)号:US09973447B2

    公开(公告)日:2018-05-15

    申请号:US14807767

    申请日:2015-07-23

    Abstract: A system includes a remote terminal unit (RTU) controller module. Each RTU controller module comprises a controller board configured to couple to a carrier board that includes first and second Ethernet ports. Each controller module comprises computer processing circuitry including the first and second MACs and configured to select to transmit a packet to the first Ethernet port through the first MAC and to alternatively select to transmit the packet to the second Ethernet port through the second MAC. Each controller module comprises an Ethernet switch configured to receive the packet from the first media access control (MAC) and transmit the packet to the first Ethernet port. Each controller module comprises a physical Ethernet interface (PHY) configured to receive the packet from the second MAC and transmit the packet to the second Ethernet port. The computer processing circuitry, the Ethernet switch, and the PHY are mounted on the controller board.

    APPARATUS AND METHOD FOR MULTI-MASTER SOLUTION ON MDIO COMMUNICATION BUS
    18.
    发明申请
    APPARATUS AND METHOD FOR MULTI-MASTER SOLUTION ON MDIO COMMUNICATION BUS 审中-公开
    多媒体通信总线多主解决方案的设备和方法

    公开(公告)号:US20160342565A1

    公开(公告)日:2016-11-24

    申请号:US14717137

    申请日:2015-05-20

    Inventor: Zhi Yang

    CPC classification number: G06F13/4291 G06F13/364 G06F13/4072

    Abstract: A method is provided. The method includes receiving, at a first device, a request to transfer data over a Management Data Input/Output (MDIO) communication bus. The first device is configured to generate a first Management Data Clock (MDC) signal. The method also includes determining whether a second MDC signal from a second device is present on the communication bus. The method further includes in response to determining that the second MDC signal is not present on the communication bus, transmitting the first MDC signal and at least part of a Management Data Input/Output (MDIO) frame over the communication bus. The method includes in response to determining that the second MDC signal is present on the communication bus, refraining from transmitting the first MDC signal and at least the part of the MDIO frame over the communication bus.

    Abstract translation: 提供了一种方法。 该方法包括在第一设备处接收通过管理数据输入/输出(MDIO)通信总线传送数据的请求。 第一设备被配置为生成第一管理数据时钟(MDC)信号。 该方法还包括确定来自第二设备的第二MDC信号是否存在于通信总线上。 该方法还包括响应于确定第二MDC信号不存在于通信总线上,通过通信总线发送第一MDC信号和管理数据输入/输出(MDIO)帧的至少一部分。 该方法包括响应于确定第二MDC信号存在于通信总线上,避免在通信总线上发送第一MDC信号和至少一部分MDIO帧。

    MASTER/SLAVE MANAGEMENT FOR REDUNDANT PROCESS CONTROLLER MODULES
    19.
    发明申请
    MASTER/SLAVE MANAGEMENT FOR REDUNDANT PROCESS CONTROLLER MODULES 有权
    冗余过程控制器模块的主/从属管理

    公开(公告)号:US20160283426A1

    公开(公告)日:2016-09-29

    申请号:US14670328

    申请日:2015-03-26

    Inventor: Zhi Yang Jie Lv Lei Zou

    CPC classification number: G06F13/364 G06F13/4022 G06F13/4282

    Abstract: A system comprising first and second redundant controller modules, each controller module comprising mode management circuitry configured to identify whether the corresponding controller module operates in a master mode or a slave mode. The mode management circuitry in each controller module is configured to couple to the mode management circuitry in the other controller module. The mode management circuitries in the controller modules are configured to collectively operate so that one of the controller modules is assigned the master mode and the other of the controller modules is assigned the slave mode. At least one of the mode management circuitries in the controller modules is configured to assign the master mode to the corresponding controller module based on a takeover signal when the mode management circuitry in the corresponding controller module is ready for use.

    Abstract translation: 一种包括第一和第二冗余控制器模块的系统,每个控制器模块包括模式管理电路,其被配置为识别对应的控制器模块是以主模式还是从模式运行。 每个控制器模块中的模式管理电路被配置为耦合到另一控制器模块中的模式管理电路。 控制器模块中的模式管理电路被配置为共同操作,使得控制器模块中的一个被分配主模式,并且另一个控制器模块被分配从属模式。 控制器模块中的至少一个模式管理电路被配置为当对应的控制器模块中的模式管理电路准备好使用时,基于接管信号将主模式分配给相应的控制器模块。

Patent Agency Ranking