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    • 8. 发明授权
    • Systems and methods for 1553 bus operation self checking
    • 1553总线运行自检的系统和方法
    • US08549389B2
    • 2013-10-01
    • US13114673
    • 2011-05-24
    • Kenneth Lee Martin
    • Kenneth Lee Martin
    • G06F7/02G01R31/28
    • G06F11/1612G06F11/1641
    • Systems and methods for 1553 bus operation self checking are provided. In one embodiment, a fault tolerant computer comprises a self-checking processor pair that includes a master processor, a checking processor, and self-checking pair logic; a 1553 bus transceiver; and a device comprising 1553 self-checking logic coupled between the self-checking processor pair and the 1553 bus transceiver, wherein the 1553 self-checking logic manages data communication between the 1553 bus transceiver and the self-checking processor pair. The 1553 self-checking logic includes a primary logic and a secondary logic that operate in lock-step. When the 1553 self-checking logic writes data to the 1553 bus transceiver, the 1553 self-checking logic compares a first 1553 formatted message generated by the primary logic to a second 1553 formatted message generated by the secondary logic, and generates an error indication when the first 1553 formatted message does not match the second 1553 formatted message.
    • 提供1553总线操作自检的系统和方法。 在一个实施例中,容错计算机包括自检处理器对,其包括主处理器,检查处理器和自检对逻辑; 一个1553总线收发器; 以及包括耦合在自检处理器对和1553总线收发器之间的1553自检逻辑的装置,其中1553自检逻辑管理1553总线收发器与自检处理器对之间的数据通信。 1553自检逻辑包括主逻辑和在锁步骤中操作的辅助逻辑。 当1553自检逻辑将数据写入1553总线收发器时,1553自检逻辑将由主逻辑产生的第一个1553格式的消息与由辅助逻辑生成的第二个1553格式的消息进行比较,并产生错误指示, 第一个1553格式的消息与第二个1553格式的消息不匹配。
    • 9. 发明申请
    • Verifying Communication Redundancy in a Network
    • 验证网络中的通信冗余
    • US20130170337A1
    • 2013-07-04
    • US13339836
    • 2011-12-29
    • Vijay VallalaKenneth LeeAlen Mehmedagic
    • Vijay VallalaKenneth LeeAlen Mehmedagic
    • H04L12/437
    • H04L12/437
    • Apparatuses, methods, and computer-readable media support diagnosing a communications network using a network protocol that ensures a loop-free topology to prevent bridge loops. One of the network devices is identified as a selected device in a network ring, where the selected device interacts with the network ring through first and second ports. The values of some of the parameters of the selected device are modified to be distinguishable from that of any network device in the ring, and diagnostics about the functioning of the network protocol are then performed to obtain state information about the first and second ports. When one of the ports is determined to be in the blocking state, network redundancy for the network ring is verified. However, when neither of the ports is not in the blocking state, a redundancy problem may be detected.
    • 设备,方法和计算机可读介质支持使用网络协议来诊断通信网络,该网络协议确保无环路拓扑以防止桥接环路。 网络设备中的一个被识别为网络环中的所选设备,其中所选择的设备通过第一和第二端口与网络环进行交互。 所选择的设备的一些参数的值被修改为与环中的任何网络设备的值的区别,然后执行关于网络协议的功能的诊断以获得关于第一和第二端口的状态信息。 当其中一个端口被确定为阻塞状态时,网络环的网络冗余被验证。 然而,当两个端口都不处于阻塞状态时,可能会检测到冗余问题。