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159 条记录 (耗时 0.039 秒)

    DATA CAPTURE AND FUSION FROM A POPULATION OF DEVICE USERS
    91.
    发明申请
    DATA CAPTURE AND FUSION FROM A POPULATION OF DEVICE USERS 有权
    数据收集和融合从设备用户的人口

    公开(公告)号：US20080120306A1

    公开(公告)日：2008-05-22

    申请号：US11561376

    申请日：2006-11-17

    申请人： Ruston John David Panabaker ,  Eric Horvitz ,  Gregory Baribault ,  Miller Thomas Abel ,  Feng Zhao

    发明人： Ruston John David Panabaker ,  Eric Horvitz ,  Gregory Baribault ,  Miller Thomas Abel ,  Feng Zhao

    IPC分类号： G06F17/30

    CPC分类号： G06F17/30241 ,  G06F17/30265 ,  G06Q30/08 ,  H04L67/12 ,  H04L67/18 ,  H04W4/02

    摘要： A method and system is provided for capturing data from a population of device users with network access. A requestor may request a data capture. The requested data may include, for example, a geographical location or a desired subject matter. Devices capable of providing the requested data capture are identified and requested to provide the data. The devices may be identified based on location, capabilities, availability, etc. The data capture from the identified federated devices may be sent to the requestor. The data may be exchanged for a fee, determined by prearrangement or via an economic model such as a competitive auction.

    摘要翻译： 提供了一种用于从具有网络访问的设备用户群体捕获数据的方法和系统。 请求者可以请求数据捕获。 所请求的数据可以包括例如地理位置或期望的主题。 识别并请求能够提供所请求的数据捕获的设备来提供数据。 可以基于位置，能力，可用性等来识别设备。来自所标识的联合设备的数据捕获可以被发送到请求者。 可以通过预先安排或通过诸如竞争性拍卖的经济模型来确定数据。

    Information driven routing in ad hoc sensor networks
    93.
    发明申请
    Information driven routing in ad hoc sensor networks 有权
    自组织传感器网络中的信息驱动路由

    公开(公告)号：US20050138200A1

    公开(公告)日：2005-06-23

    申请号：US10736748

    申请日：2003-12-17

    申请人： Juan Liu ,  Feng Zhao

    发明人： Juan Liu ,  Feng Zhao

    IPC分类号： G06F15/173 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08

    CPC分类号： H04W40/02 ,  H04L29/06 ,  H04L45/122 ,  H04L45/34 ,  H04L67/12 ,  H04L69/329 ,  H04W40/00 ,  H04W84/18

    摘要： A sensor network routing is formulated as a joint optimization problem taking into account routing cost and information aggregation. Information gain is used explicitly to optimize the routing path. The optimization approach involves a shortest path algorithm in a modified network graph. A method is provided that routes queries from an arbitrary entry point to high activity network sensor regions using inputs from sensor nodes along the path to refine the message. The multiple step look-ahead approach provides deadlock avoidance and routing around sensor network holes. For point-to-point query routing, a method based on real-time A* (RTA*) search is provided to find a path which takes detours efficiently to maximize information aggregation. Future information expected to be gained along the path from an arbitrary node to an exit node may be estimated to allow the selection of a successor sensor node.

    摘要翻译： 传感器网络路由被公认为联合优化问题，考虑到路由成本和信息聚合。 明确使用信息增益来优化路由路径。 优化方法涉及修改网络图中的最短路径算法。 提供了一种方法，其使用来自沿着路径的传感器节点的输入将来自任意入口点的查询路由到高活动性网络传感器区域以优化消息。 多步骤预先方法提供了围绕传感器网络孔的死锁避免和路由。 对于点对点查询路由，提供了一种基于实时A *（RTA *）搜索的方法，以找到有效绕过路径以最大化信息聚合的路径。 可以估计将从任意节点到出口节点的路径中获得的未来信息允许选择后继传感器节点。

    Interferometric apparatus for ultra-high precision displacement measurement
    94.
    发明授权
    Interferometric apparatus for ultra-high precision displacement measurement 失效
    用于超高精度位移测量的干涉仪

    公开(公告)号：US06710880B1

    公开(公告)日：2004-03-23

    申请号：US09950237

    申请日：2001-09-06

    申请人： Feng Zhao

    发明人： Feng Zhao

    IPC分类号： G01B902

    CPC分类号： G01B9/02007 ,  G01B2290/45 ,  G01B2290/70

    摘要： A high-precision heterodyne interferometer measures relative displacement by creating a thermally-insensitive system generally not subject to polarization leakage. By using first and second light beams separated by a small frequency difference (&Dgr;f), beams of light at the first frequency (f0) are reflected by co-axial mirrors, the first mirror of which has a central aperture through which the light is transmitted to and reflected by the second mirror. Prior to detection, the light beams from the two mirrors are combined with light of the second and slightly different frequency. The combined light beams are separated according to the light from the mirrors. The change in phase (&Dgr;&phgr;) with respect to the two signals is proportional to the change in distance of Fiducial B by a factor of wavelength (&lgr;) divided by 4&pgr; (&Dgr;L=&lgr;&Dgr;&phgr;1/(4&pgr;)). In a second embodiment, a polarizing beam splitting system can be used.

    摘要翻译： 高精度外差干涉仪通过产生通常不会发生极化泄漏的热不敏感系统来测量相对位移。 通过使用由小频差（Deltaf）分开的第一和第二光束，第一频率（f0）的光束被同轴反射镜反射，同轴反射镜具有中心孔，通过该中心孔透射光 并由第二个镜子反射。 在检测之前，来自两个反射镜的光束与第二和稍微不同的频率的光组合。 组合的光束根据来自反射镜的光分离。 相对于两个信号的相位变化（Deltaphi）与基准点B的距离变化除以4pi（DeltaL =λDeltaphi1/（4pi））成正比。 在第二实施例中，可以使用偏振分束系统。

    Efficient stream sharing for multi-user sensor data collection
    97.
    发明授权
    Efficient stream sharing for multi-user sensor data collection 有权
    多用户传感器数据收集的高效流共享

    公开(公告)号：US08797178B2

    公开(公告)日：2014-08-05

    申请号：US12045516

    申请日：2008-03-10

    申请人： Aman Kansal ,  Arsalan Tavakoli-Shiraji ,  Suman Nath ,  Feng Zhao

    发明人： Aman Kansal ,  Arsalan Tavakoli-Shiraji ,  Suman Nath ,  Feng Zhao

    IPC分类号： G08C19/16 ,  G08C19/22 ,  H04Q9/00 ,  G05B15/02 ,  G05B19/18 ,  G05B13/02 ,  G06F19/00 ,  G06F7/00 ,  G06F17/30

    CPC分类号： H04Q9/00 ,  G01D21/02 ,  H04Q2209/20 ,  H04Q2209/30 ,  H04Q2209/43

    摘要： The claimed subject matter provides systems and/or techniques that facilitate and/or effectuate efficient stream sharing for multi-user sensor data collection. The system includes mechanisms that locate within a query a specification that includes spatial regions over which data is required, based on the spatial regions the mechanism determines which sensors are situated within the region or ascertains which of the sensors in the region is actively streaming data and/or has persisted data in order to fulfill the query, constructs or utilizes a directed acyclic graph to obviate redundancy in a functional requirement included in the specification and imposed by the query, and formulates a result in fulfillment of the query that is delivered to an application.

    摘要翻译： 所要求保护的主题提供促进和/或实现多用户传感器数据收集的有效流共享的系统和/或技术。 该系统包括在查询内定位包括需要数据的空间区域的规范的机制，基于机构确定哪些传感器位于该区域内的空间区域或确定该区域中的哪些传感器主动地流式传输数据和 /或已经持久化数据以便完成查询，构造或利用有向非循环图来消除规范中包含的并由查询强加的功能需求中的冗余，并且形成结果以满足被递送到 应用。