Method and apparatus for phase identification in a three-phase power distribution network
    31.
    发明授权
    Method and apparatus for phase identification in a three-phase power distribution network 有权
    三相配电网络相位识别方法及装置

    公开(公告)号:US08533121B1

    公开(公告)日:2013-09-10

    申请号:US12927767

    申请日:2010-11-23

    CPC classification number: G01R29/18

    Abstract: A remote phase identification system identifies the unknown phase attribute of any energized conductor within a three-phase power distribution network. A field probe at a remote location obtains an instantaneous phase measurement at a precise GPS second and communicates this phase, GPS second, and GPS coordinates to a field client. Either wireless Internet or satellite modem communications is used by the field client to retrieve the reference phase taken by a base station at the same GPS second. Field client tagging reference phase configuration files are automatically created for any circuit and applied to the base station reference phase. Configuration files can be named, saved, and loaded and are used by the field client to identify and display the unknown phase attribute. A field client can be any personal computer, smartphone, or personal digital assistant.

    Abstract translation: 远程相位识别系统识别三相配电网络内任何通电导体的未知相位属性。 在远程位置的现场探测器在精确的GPS秒获得瞬时相位测量,并将该相位,GPS第二和GPS坐标传送给现场客户端。 现场客户端使用无线因特网或卫星调制解调器通信来在相同的GPS秒处检索由基站采取的参考相位。 自动为任何电路创建现场客户端标记参考相位配置文件,并应用于基站参考阶段。 配置文件可以命名,保存和加载,并由现场客户端用来识别和显示未知的相位属性。 现场客户端可以是任何个人计算机,智能手机或个人数字助理。

    Aircraft bird strike avoidance method and apparatus using axial beam antennas
    32.
    发明授权
    Aircraft bird strike avoidance method and apparatus using axial beam antennas 有权
    飞机鸟躲避方法和使用轴向束天线的装置

    公开(公告)号:US08368583B1

    公开(公告)日:2013-02-05

    申请号:US12802904

    申请日:2010-06-16

    Abstract: An aircraft avian radar is implemented using multiple axial beam antennas mounted on an aircraft. Target range is determined by radar range. Target azimuth and elevation position is determined by triangulation. An end-fire array antenna composed of a series of monopole antenna elements enclosed inside a long thin protective cover fashioned in the form of a stall fence is mounted on the wings, tail, or fuselage to produce a low drag axial beam antenna pattern directed ahead of the aircraft. Other axial beam antenna choices include helical, pyramidal horn, and conical horn antennas mounted on or inside various forward facing surfaces of the aircraft.

    Abstract translation: 使用安装在飞机上的多个轴向梁天线实现飞机禽类雷达。 目标范围由雷达范围决定。 目标方位角和仰角位置由三角测量确定。 由一系列单极天线元件组成的端射阵列天线安装在机翼,尾部或机身形成的长薄薄的防护罩内,形成一个失速挡板的形式,以产生向前引导的低阻力轴向梁天线方向图 的飞机。 其他轴向梁天线选择包括安装在飞机的各种前向表面上或其内的螺旋形,金字塔形喇叭和锥形喇叭天线。

    Apparatus and method for identifying cable phase in a three-phase power distribution network

    公开(公告)号:US06667610B2

    公开(公告)日:2003-12-23

    申请号:US10317910

    申请日:2002-12-12

    CPC classification number: G01R29/18

    Abstract: A cable phase identification system and method identifies the phase of a power cable at a remote location in a three-phase power distribution network. The instantaneous phase at a known phase location is measured and saved each GPS second using the 1 pps time mark of a GPS receiver. The instantaneous phase at an unknown phase location is measured at a single GPS second using the 1 pps time mark of its GPS receiver and compared to the phase measurement taken at the known phase location at the same GPS second. The differential phase between these simultaneously taken known and unknown cable instantaneous phase measurements will be close to either 0, +120, or −120 degrees, thus identifying the cable phase at the unknown phase location.

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