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

    Applicant: Allan Thomson

    Inventor: Allan Thomson

    CPC classification number: G01M13/045 G01H1/00 G01N29/4463

    Abstract: 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.

    Fault reporting tag for mesh access points
    13.
    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

    Applicant: Allan Thomson

    Inventor: Allan Thomson

    CPC classification number: H04W88/08

    Abstract: 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.

    Abstract translation: 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
    14.
    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

    CPC classification number: G01S5/0226

    Abstract: 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.

    Abstract translation: 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
    15.
    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

    CPC classification number: H04W12/04 H04L63/0492 H04W88/08

    Abstract: 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.

    Abstract translation: 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。

    ALTERNATIVE POWER OPERATION OF LOADING DOCKS AND LOADING DOCK EQUIPMENT
    16.
    发明申请
    ALTERNATIVE POWER OPERATION OF LOADING DOCKS AND LOADING DOCK EQUIPMENT 有权
    装载锁和装载装置的替代动力运行

    公开(公告)号:US20110238231A1

    公开(公告)日:2011-09-29

    申请号:US13130989

    申请日:2009-12-16

    CPC classification number: B65G69/2882 H02J9/06 Y10T307/696

    Abstract: Technology generally directed to operation of loading dock equipment such as vehicle restraints, dock levelers, overhead doors/openers, barrier gates, lights, and linked or unlinked control systems is disclosed herein. The disclosed technology may be employed to power electrical loading dock systems from batteries and/or alternative power sources, including “green” power sources. For example, the technology may be employed at new, temporary, and/or mobile facilities having any number of loading docks where reliable commercial power may not be readily available. Further, the technology may also be employed at warehouses in remote and/or developing areas where electrical infrastructure is not available and/or reasonably priced. The technology may be embodied as methods, apparatuses, manufactures (e.g., computer- and/or processor-readable storage and/or other mediums), and/or the like.

    Abstract translation: 本文公开了一般涉及装卸码头设备如车辆限制器,码头调平器,架空门/开启器,障碍门,灯和连接或非连接控制系统的操作的技术。 可以使用所公开的技术来从包括“绿色”电源的电池和/或替代电源为电力装载坞系统供电。 例如,该技术可以用于具有任何数量的装载码头的新的,临时的和/或移动的设施,其中可能的商业功率可能不容易获得。 此外,该技术还可以用于远程和/或开发区域的仓库,其中电气基础设施不可用和/或价格合理。 技术可以体现为方法,装置,制造(例如,计算机和/或处理器可读存储和/或其他介质)和/或类似物。

    Mobility service clustering using network service segments
    18.
    发明授权
    Mobility service clustering using network service segments 有权
    使用网络服务段的移动服务集群

    公开(公告)号:US07827270B2

    公开(公告)日:2010-11-02

    申请号:US12174792

    申请日:2008-07-17

    CPC classification number: H04W8/12 H04W8/06 H04W24/04

    Abstract: Described in an example embodiment herein is a Mobility Service Engine (MSE) cluster comprising an MSE Cluster Master and at least one MSE Cluster Slave. The MSE Master is configured to define Network Service Segments. The MSE Master of the cluster distributes the Network Service Segments to slaves within the cluster. The network is configured to forward data to the correct Network Service Segment.

    Abstract translation: 在本文的示例实施例中描述的是包括MSE群集主机和至少一个MSE群集从站的移动性服务引擎(MSE)群集。 MSE Master被配置为定义网络服务段。 群集的MSE主站将网络服务段分配到群集中的从站。 网络配置为将数据转发到正确的网络服务段。

    Management of distributed location servers
    19.
    发明授权
    Management of distributed location servers 有权
    分布式位置服务器的管理

    公开(公告)号:US07734296B2

    公开(公告)日:2010-06-08

    申请号:US11556868

    申请日:2006-11-06

    CPC classification number: H04W8/12 H04W84/12

    Abstract: In one embodiment, a method includes storing, in a data store, a physical network model of a network environment, the network environment comprising one or more central controllers and one or more access points each operative to associate with a central controller, the physical network model comprising one or more region objects, each region object corresponding to a physical region of the network environment, each region object further including one or more radio frequency (RF) coverage maps, each RF coverage map defining a location of one or more access points and RF properties of a physical space; receiving a first mapping definition between a location server and a one or more region objects of the physical network model; receiving a second mapping definition between the location server and one or more central controllers; transmitting the one or more region objects in the first mapping definition to the location server; and configuring the location server and the one or more central controllers in the second mapping definition to interoperate.

    Abstract translation: 在一个实施例中,一种方法包括在数据存储中存储网络环境的物理网络模型,所述网络环境包括一个或多个中央控制器和一个或多个接入点,每个接入点可操作以与中央控制器相关联,所述物理网络 模型,其包括一个或多个区域对象,每个区域对象对应于网络环境的物理区域,每个区域对象还包括一个或多个射频(RF)覆盖图,每个RF覆盖图定义一个或多个接入点的位置 和物理空间的RF属性; 在位置服务器和所述物理网络模型的一个或多个区域对象之间接收第一映射定义; 在位置服务器和一个或多个中央控制器之间接收第二映射定义; 将所述第一映射定义中的所述一个或多个区域对象发送到所述位置服务器; 以及将位置服务器和第二映射定义中的一个或多个中央控制器配置为互操作。

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