Method and data processing device for severity assessment of bearing defects using vibration energy

    公开(公告)号:US09989439B2

    公开(公告)日:2018-06-05

    申请号:US15294064

    申请日:2016-10-14

    申请人: Allan Thomson

    发明人: Allan Thomson

    摘要: Method for detecting bearing defect severity based on bearing rotation speed and at least one data sample of sensor data obtained to measure vibrations of a bearing ring is provided. The method includes converting the data sample from time domain to frequency domain to obtain a signal frequency spectrum; determining a defect center frequency of the bearing using the rotation speed; and identifying a predetermined number of frequency peaks of the signal frequency spectrum. A total vibration energy in an overall frequency band including the predetermined number of frequency peaks is first determined; next, for each of the frequency peaks, a peak energy as a spectral energy of signal components giving rise to the frequency peaks is determined; calculating a bearing defect spectral energy using the peak energies; and finally a ratio of the bearing defect spectral energy and a total vibration energy to assess a defect severity is obtained.

    Removable heater for communication antenna
    45.
    发明授权
    Removable heater for communication antenna 有权
    通讯天线可拆卸加热器

    公开(公告)号:US09398642B2

    公开(公告)日:2016-07-19

    申请号:US13657545

    申请日:2012-10-22

    IPC分类号: H05B3/06 H05B3/10 H05B3/34

    CPC分类号: H05B3/34 H05B2203/013

    摘要: A heater assembly including a foil heater having at least one slot. The heater assembly includes an insulating plate configured to electrically and thermally insulate the foil heater, the insulating plate having a central opening, at least one first mounting hole and at least one first fastening hole. The heater assembly includes a heat dissipation element configured to conduct heat from the foil heater to an exterior of the heater assembly, the heat dissipation element having at least one second mounting hole and at least one second fastening hole. The foil heater is between the insulating plate and the heat dissipation element. The at least one first mounting hole, the at least one slot and the at least one second mounting hole are aligned. The at least one first fastening hole, the at least one slot and the at least one second fastening hole are aligned.

    摘要翻译: 一种加热器组件,包括具有至少一个槽的箔加热器。 加热器组件包括绝缘板,该绝缘板被配置为使箔加热器电隔离和绝热,绝缘板具有中心开口,至少一个第一安装孔和至少一个第一紧固孔。 加热器组件包括被配置为将热量从箔加热器传导到加热器组件的外部的散热元件,散热元件具有至少一个第二安装孔和至少一个第二紧固孔。 箔加热器位于绝缘板和散热元件之间。 所述至少一个第一安装孔,所述至少一个槽和所述至少一个第二安装孔对齐。 所述至少一个第一紧固孔,所述至少一个狭槽和所述至少一个第二紧固孔对齐。

    SENSOR DEVICE WITH MOUNTING MEANS
    46.
    发明申请
    SENSOR DEVICE WITH MOUNTING MEANS 审中-公开
    具有安装方式的传感器装置

    公开(公告)号:US20160169278A1

    公开(公告)日:2016-06-16

    申请号:US14960524

    申请日:2015-12-07

    IPC分类号: F16C19/52

    摘要: A sensor device for monitoring a component of interest, including at least one sensor for measuring at least one parameter indicative of condition of the component of interest, signal processing device for processing the signals of the sensor, a housing for at least the signal processing device and a mounting feature for mounting the sensor device close to the component of interest. The mounting feature can include a bolt and bracket having a first portion including an opening for inserting the bolt in an insertion direction and a second portion with a surface parallel to the insertion direction configured to mount the housing.

    摘要翻译: 一种用于监测感兴趣的部件的传感器装置,包括至少一个传感器,用于测量指示感兴趣部件的状态的至少一个参数,用于处理传感器的信号的信号处理装置,用于至少信号处理装置 以及用于将传感器装置安装在靠近感兴趣部件的安装特征。 安装特征可以包括具有第一部分的螺栓和支架,第一部分包括用于沿插入方向插入螺栓的开口和具有平行于构造成安装壳体的插入方向的表面的第二部分。

    REMOVABLE HEATER FOR COMMUNICATION ANTENNA
    47.
    发明申请
    REMOVABLE HEATER FOR COMMUNICATION ANTENNA 有权
    用于通信天线的可拆卸加热器

    公开(公告)号:US20140110400A1

    公开(公告)日:2014-04-24

    申请号:US13657545

    申请日:2012-10-22

    IPC分类号: H05B3/10

    CPC分类号: H05B3/34 H05B2203/013

    摘要: A heater assembly including a foil heater having at least one slot. The heater assembly includes an insulating plate configured to electrically and thermally insulate the foil heater, the insulating plate having a central opening, at least one first mounting hole and at least one first fastening hole. The heater assembly includes a heat dissipation element configured to conduct heat from the foil heater to an exterior of the heater assembly, the heat dissipation element having at least one second mounting hole and at least one second fastening hole. The foil heater is between the insulating plate and the heat dissipation element. The at least one first mounting hole, the at least one slot and the at least one second mounting hole are aligned. The at least one first fastening hole, the at least one slot and the at least one second fastening hole are aligned.

    摘要翻译: 一种加热器组件,包括具有至少一个槽的箔加热器。 加热器组件包括绝缘板,该绝缘板被配置为使箔加热器电隔离和绝热,绝缘板具有中心开口,至少一个第一安装孔和至少一个第一紧固孔。 加热器组件包括被配置为将热量从箔加热器传导到加热器组件的外部的散热元件,散热元件具有至少一个第二安装孔和至少一个第二紧固孔。 箔加热器位于绝缘板和散热元件之间。 所述至少一个第一安装孔,所述至少一个槽和所述至少一个第二安装孔对齐。 所述至少一个第一紧固孔,所述至少一个狭槽和所述至少一个第二紧固孔对齐。

    Fault reporting tag for mesh access points
    48.
    发明授权
    Fault reporting tag for mesh access points 有权
    网状接入点的故障报告标签

    公开(公告)号:US08406122B2

    公开(公告)日:2013-03-26

    申请号:US12884615

    申请日:2010-09-17

    申请人: Allan Thomson

    发明人: Allan Thomson

    IPC分类号: G01R31/08 G06F11/00

    CPC分类号: H04W88/08

    摘要: Mesh access point fault reporting. In particular implementations, a method includes receiving a fault indication indicating one or more failures; collecting fault data related to the one or more failures or a state of the mesh access point; and passing the fault data to the RFID tag, which wirelessly transmits messages relating to the fault.

    摘要翻译: 网状接入点故障报告。 在具体实现中,一种方法包括:接收指示一个或多个故障的故障指示; 收集与一个或多个故障有关的故障数据或网状接入点的状态; 并将故障数据传递到RFID标签,RFID标签无线传输与故障有关的消息。

    Inserting time of departure information in frames to support multi-channel location techniques
    49.
    发明授权
    Inserting time of departure information in frames to support multi-channel location techniques 有权
    以帧格式插入出发时间信息,以支持多频道定位技术

    公开(公告)号:US08335173B2

    公开(公告)日:2012-12-18

    申请号:US12168250

    申请日:2008-07-07

    IPC分类号: H04B7/00

    CPC分类号: G01S5/0226

    摘要: A device whose location is to be determined (target device) generates a plurality of frames (messages) and time of departure (TOD) timestamp information indicating when the target device transmits the plurality of frames in a sequence or burst. The target device transmits the plurality of frames and the TOD information, wherein the plurality of frames are transmitted such that at least two of the frames are on different radio frequency (RF) channels. Within a sequence or burst (or across multiple sequences or bursts), multiple widely spaced transmissions on the same channel are included to allow for estimation of the crystal frequency offset of the transmitting device. The TOD information included in the transmitted packets allows devices that receive the packets not to change their channels of operation solely for the purpose of receiving packets from the device to be located.

    摘要翻译: 要确定其位置的设备(目标设备)产生指示目标设备何时以序列或突发方式发送多个帧的多个帧(消息)和出发时间(TOD)时间戳信息。 目标设备发送多个帧和TOD信息,其中发送多个帧,使得至少两个帧在不同的射频(RF)信道上。 在序列或突发(或跨多个序列或突发)中,包括相同信道上的多个宽间隔的传输以允许估计发射设备的晶体频率偏移。 包含在所发送的分组中的TOD信息允许接收分组的设备不改变其操作信道,仅用于从要被定位的设备接收分组。

    Providing secure communications for active RFID tags
    50.
    发明授权
    Providing secure communications for active RFID tags 有权
    为有源RFID标签提供安全通信

    公开(公告)号:US08325914B2

    公开(公告)日:2012-12-04

    申请号:US11945731

    申请日:2007-11-27

    IPC分类号: H04L9/00

    摘要: Described herein in an example embodiment, is a mechanism to distribute and implement secure credentials on a WLAN (wireless local area network) employing radio frequency identification (RFID) tags. Symmetric keys are provisioned to the tag in a manner that allows for optimized re-association and secure announcements. The provisioned keys are derived in a way that enables the controller to operate without having to maintain the key state for every tag. In an example embodiment, the controller generates keys for the RFID tags that are derived from a master key associated with the controller, an identifier assigned to the RFID tag and an address associated with the RFID tag.

    摘要翻译: 在示例实施例中描述的是在使用射频识别(RFID)标签的WLAN(无线局域网)上分发和实现安全凭证的机制。 对称密钥以允许优化的重新关联和安全公告的方式配置到标签。 所提供的密钥的导出方式是使得控制器能够操作而不必维护每个标签的密钥状态。 在示例实施例中,控制器产生从与控制器相关联的主密钥导出的RFID标签的密钥,分配给RFID标签的标识符和与RFID标签相关联的地址。