ROBUST HIGH RESOLUTION SPECTRUM ESTIMATION METHOD FOR ACCURATE PHASOR, HARMONIC AND INTERHARMONIC MEASUREMENT IN POWER SYSTEMS
    64.
    发明申请
    ROBUST HIGH RESOLUTION SPECTRUM ESTIMATION METHOD FOR ACCURATE PHASOR, HARMONIC AND INTERHARMONIC MEASUREMENT IN POWER SYSTEMS 审中-公开
    用于电力系统中精确的相位,谐波和谐波测量的鲁棒高分辨率频谱估计方法

    公开(公告)号:US20130173189A1

    公开(公告)日:2013-07-04

    申请号:US13730421

    申请日:2012-12-28

    IPC分类号: G06F17/17 G06F17/16 G01R21/00

    摘要: A high-resolution Subspace-Least Mean Square (S-LMS) method for harmonic and interharmonic measurement in power systems is provided. The eigenvector corresponding to the smallest eigenvalue is used to calculate the frequencies of the signal, and the least mean square method is used to estimate the amplitude and phase angle of harmonic and interharmonic components based on the computed frequencies and time domain measurements of the signal. Three schemes, namely sparsity, catch-and-pinpoint, and hybrid are presented. The S-LMS method provides accurate phasor, harmonic and interharmonic measurements for power system monitoring. The speed, accuracy, and resilience of the S-LMS method can be further increased by each of the three schemes. The method has a wide range of applications in power quality analyzers, synchronized phasor measurement, situational awareness, dynamic equivalencing, and smart meters.

    摘要翻译: 提供了用于电力系统谐波和间谐波测量的高分辨率子空间 - 最小均方(S-LMS)方法。 使用对应于最小特征值的特征向量来计算信号的频率,并且使用最小均方根据信号的计算频率和时域测量来估计谐波和间谐波分量的幅度和相位角。 提出了三个方案,即稀疏性,准确性和准确性和混合性。 S-LMS方法为电力系统监测提供了准确的相量,谐波和间谐波测量。 S-LMS方法的速度,准确性和弹性可以通过三种方案中的每一种进一步提高。 该方法在电能质量分析仪,同步相量测量,情景感知,动态等效和智能电表方面具有广泛的应用。

    REMELTING TYPE THREAD ELEMENT FOR PARALLEL DUAL-SCREW EXTRUDER AND MANUFACTURING METHOD THEREOF
    65.
    发明申请
    REMELTING TYPE THREAD ELEMENT FOR PARALLEL DUAL-SCREW EXTRUDER AND MANUFACTURING METHOD THEREOF 审中-公开
    并联双螺杆挤出机的改型型螺纹元件及其制造方法

    公开(公告)号:US20130107657A1

    公开(公告)日:2013-05-02

    申请号:US13810188

    申请日:2011-05-06

    申请人: Peng Zhang

    发明人: Peng Zhang

    IPC分类号: B29B7/80 B23P15/00 B23K9/00

    摘要: A remelting type thread element for a parallel dual-screw extruder and a method for manufacturing the same are disclosed. The thread element includes a body (101) and a nickel-based tungsten carbide spray welding layer (102). Wherein, the nickel-based tungsten carbide spray welding layer is uniformly and eccentrically remelted on the external surface of the body. The manufacturing method comprises a steel billet casting process, a spray welding process, a remelting process and a machining process. The wearing resistance and corrosion resistance of the thread element are superior to the property of the domestic high-speed tool steel; it has reasonable structure, advanced process and low cost. The thread element has high property and price ratio, better social and economic benefit, and wide popularization and application value.

    摘要翻译: 公开了一种用于平行双螺杆挤出机的再熔型螺纹元件及其制造方法。 螺纹元件包括主体(101)和镍基碳化钨喷涂焊接层(102)。 其中,镍基碳化钨喷涂焊接层在主体的外表面上均匀且偏心地重熔。 该制造方法包括钢坯铸造工艺,喷涂焊接工艺,重熔工艺和加工工艺。 螺纹元件的耐磨性和耐腐蚀性优于国内高速工具钢的性能; 结构合理,工艺先进,成本低。 螺纹元件具有物业价格比高,社会效益和经济效益好,推广应用价值广泛。

    Method and apparatus for automatic snapshot
    66.
    发明授权
    Method and apparatus for automatic snapshot 有权
    自动快照方法和装置

    公开(公告)号:US08370591B2

    公开(公告)日:2013-02-05

    申请号:US12540962

    申请日:2009-08-13

    IPC分类号: G06F12/00 G06F11/00

    CPC分类号: G06F11/1461

    摘要: A method for automatic snapshot includes obtaining the amount of data written into a source Logical Unit Number (LUN) and performing increment accumulation; and taking a snapshot when a value of the increment accumulation exceeds the upper limit value. An apparatus for automatic snapshot is disclosed. In one embodiment of the invention, snapshots are taken according to the size of a data variable, only two characterizing parameters, an upper limit value and an increment value need to be added, and the determination logic is clear and concise. Thus, system efficiency or resource overload is not affected, the pertinence is strengthened, the resource usage is increased, and the adaptability is strengthened. Furthermore, stored data may be automatically protected with snapshot, and data safety and reliability are greatly improved.

    摘要翻译: 一种自动快照方法包括获取写入源逻辑单元编号(LUN)并执行增量累加的数据量; 并且当增量累积值超过上限值时拍摄快照。 公开了一种用于自动快照的装置。 在本发明的一个实施例中,根据数据变量的大小拍摄快照,仅需要两个特征参数,上限值和增量值,并且确定逻辑清晰简洁。 因此,系统效率或资源过载不受影响,相关性得到加强,资源使用增加,适应性强化。 此外,存储的数据可以用快照自动保护,并且数据的安全性和可靠性大大提高。

    METHOD OF PERFORMING TARGET RAMAN GAIN LOCKING AND RAMAN FIBER AMPLIFIER
    67.
    发明申请
    METHOD OF PERFORMING TARGET RAMAN GAIN LOCKING AND RAMAN FIBER AMPLIFIER 有权
    执行目标拉曼增益锁定和拉曼光纤放大器的方法

    公开(公告)号:US20120327505A1

    公开(公告)日:2012-12-27

    申请号:US13323455

    申请日:2011-12-12

    IPC分类号: H01S3/30

    摘要: An embodiment of the present invention discloses a method of performing target Raman gain locking and a Raman fiber amplifier. The Raman fiber amplifier comprises a coupler (1) and a control unit (15), wherein the control unit comprises a target gain locking module. A detection circuit formed by filters and optical power detectors is connected between an output side of the coupler (1) and an input side of the control unit (15). Said method uses the control unit (15) to adjust power of the pump laser, making the detected out-of-band ASE power value reach target out-of-band ASE optical signal power value. Thus, the target amplification gain locking can be realized. Optical path according to embodiments of the present invention has a simple structure. The Raman gain can be configured flexibly according to line condition, and automatic control and locking of gain of the Raman fiber amplifier can be realized.

    摘要翻译: 本发明的实施例公开了一种执行目标拉曼增益锁定和拉曼光纤放大器的方法。 拉曼光纤放大器包括耦合器(1)和控制单元(15),其中控制单元包括目标增益锁定模块。 由滤波器和光功率检测器形成的检测电路连接在耦合器(1)的输出侧和控制单元(15)的输入侧之间。 所述方法使用控制单元(15)来调节泵浦激光器的功率,使得检测到的带外ASE功率值达到目标带外ASE光信号功率值。 因此,可以实现目标放大增益锁定。 根据本发明的实施例的光路具有简单的结构。 可以根据线路条件灵活配置拉曼增益,实现拉曼光纤放大器增益的自动控制和锁定。

    Method and device for setting user-side white list and paging user equipment
    68.
    发明授权
    Method and device for setting user-side white list and paging user equipment 有权
    设置用户端白名单和寻呼用户设备的方法和设备

    公开(公告)号:US08315600B2

    公开(公告)日:2012-11-20

    申请号:US13071285

    申请日:2011-03-24

    申请人: Hai Liu Peng Zhang

    发明人: Hai Liu Peng Zhang

    IPC分类号: H04M3/16

    摘要: The present invention discloses methods and devices for setting user-side white list and paging UE, and relates to the field of communication. To solve the problem that the user-side white list is inconsistent with the network-side white list, the method for setting a user-side white list includes: Acquiring and storing information of CSG to be deleted from a user-side white list; receiving a second NAS message originated from a UE; and sending the UE a response message of the second NAS message, so that the UE deletes CSG specified by the information of the CSG from the user-side white list. To solve the problem that the MME may fail to pages the UE through the network-side white list when the user-side white list is inconsistent with the network-side white list, the method for paging UE includes: acquiring and storing information of CSG to be deleted from a user-side white list; and sending a UE paging message to CSG specified by the information of the CSG. The embodiments of the present invention can be applied to a mobile network accessed through an HeNB.

    摘要翻译: 本发明公开了用于设置用户侧白名单和寻呼UE的方法和装置,涉及通信领域。 为了解决用户侧白名单与网络侧白名单不一致的问题,设置用户侧白名单的方法包括:从用户侧白名单中获取并存储要删除的CSG的信息; 接收来自UE的第二NAS消息; 并向UE发送第二NAS消息的响应消息,使得UE从用户侧白名单中删除由CSG的信息指定的CSG。 为了解决当用户侧白名单与网络侧白名单不一致时MME可能无法通过网络侧白名单对UE进行寻呼的问题,则寻呼UE的方法包括:获取和存储CSG的信息 从用户端白名单中删除; 并向所述CSG的信息指定的CSG发送UE寻呼消息。 本发明的实施例可以应用于通过HeNB访问的移动网络。

    Method and system for establishing tunnel in WLAN
    70.
    发明授权
    Method and system for establishing tunnel in WLAN 有权
    WLAN建立隧道的方法和系统

    公开(公告)号:US08102828B2

    公开(公告)日:2012-01-24

    申请号:US12176077

    申请日:2008-07-18

    IPC分类号: H04W4/00

    CPC分类号: H04L63/0272 H04W76/12

    摘要: A method and a system for establishing a tunnel in a wireless local area network (WLAN) are described. The method includes the following steps. A WLAN terminal initiates a tunnel establishment request in an Internet Key Exchange Security Association (IKE SA) that has been established. It is judged whether the number of tunnels already established in the IKE SA reaches a corresponding first threshold or not, if the number of tunnels does not reach the corresponding first threshold, establishing the tunnel for the WLAN terminal; otherwise, rejecting the establishment of the tunnel for the WALN terminal. It is decided whether to establish the tunnel for the WLAN terminal or not by judging whether the number of the tunnels already established in each IKE SA reaches the corresponding threshold or not during the tunnel establishment of the WLAN terminal, thereby effectively controlling the rationality and validity about the tunnel establishment.

    摘要翻译: 描述了在无线局域网(WLAN)中建立隧道的方法和系统。 该方法包括以下步骤。 WLAN终端在已经建立的因特网密钥交换安全关联(IKE SA)中发起隧道建立请求。 如果隧道数目未达到相应的第一阈值,则确定IKE SA中已经建立的隧道数目是否达到相应的第一阈值,建立WLAN终端的隧道; 否则拒绝为WALN终端建立隧道。 通过在WLAN终端的隧道建立期间判断每个IKE SA中已经建立的隧道数目是否达到相应的阈值来决定是否建立WLAN终端的隧道,从而有效地控制WLAN的合理性和有效性 关于隧道建设。