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    METHOD AND APPARATUS FOR LOOSENING OF FASTENERS ON STRUCTURES
    11.
    发明申请
    METHOD AND APPARATUS FOR LOOSENING OF FASTENERS ON STRUCTURES 有权
    用于松紧结构件的方法和装置

    公开(公告)号：US20090276168A1

    公开(公告)日：2009-11-05

    申请号：US12432659

    申请日：2009-04-29

    申请人： Bao Liu ,  Lien Ouyang ,  Shawn J. Beard ,  Irene Li ,  Fu-Kuo Chang

    发明人： Bao Liu ,  Lien Ouyang ,  Shawn J. Beard ,  Irene Li ,  Fu-Kuo Chang

    IPC分类号： G01N29/14

    CPC分类号： G01H1/00

    摘要： Methods and apparatuses for detecting fastener loosening. Sensors query a structure at a baseline value of an environment variable, such as temperature, and this baseline signal is stored for later use. Subsequently, users can query the structure remotely and at any time, and the signals from these queries are compared to the stored baseline signal. In some embodiments, an index is calculated, and the system determines that one or more fasteners have come loose if the calculated index exceeds a predetermined threshold value. It is desirable to select a time window within which the query signal is most sensitive to fastener loosening but least sensitive to variations in the environment variable. Accordingly, embodiments of the invention include methods and apparatuses for determining an optimal time window for use in calculating the above described index.

    摘要翻译： 用于检测紧固件松动的方法和装置。 传感器以环境变量（如温度）的基准值查询结构，并将此基线信号存储供以后使用。 随后，用户可以在任何时间远程查询结构，并将来自这些查询的信号与存储的基线信号进行比较。 在一些实施例中，计算索引，并且如果所计算的索引超过预定阈值，则系统确定一个或多个紧固件已经松动。 期望选择查询信号对紧固件松动最敏感但对环境变量的变化最不敏感的时间窗。 因此，本发明的实施例包括用于确定用于计算上述索引的最佳时间窗口的方法和装置。

    Structural health monitoring network
    12.
    发明申请
    Structural health monitoring network 审中-公开
    结构健康监测网络

    公开(公告)号：US20080155357A1

    公开(公告)日：2008-06-26

    申请号：US11543185

    申请日：2006-10-03

    申请人： Zengpin Yu ,  Chang Zhang ,  Irene Li

    发明人： Zengpin Yu ,  Chang Zhang ,  Irene Li

    IPC分类号： G06F11/00

    CPC分类号： G05B23/0213

    摘要： A networked configuration of structural health monitoring elements. Monitoring elements such as sensors and actuators are configured as a network, with groups of monitoring elements each controlled by a local controller, or cluster controller. A data bus interconnects each cluster controller with a router, forming a networked group of “monitoring clusters” connected to a router. In some embodiments, the router identifies particular clusters, and sends commands to the appropriate cluster controllers, instructing them to carry out the appropriate monitoring operations. In turn, the cluster controllers identify certain ones of their monitoring elements, and direct them to monitor the structure as necessary. Data returned from the monitoring elements is sent to the cluster controllers, which then pass the information to the router.

    摘要翻译： 结构健康监测元素的联网配置。 诸如传感器和执行器之类的监控元件被配置为网络，各组监视元件各自由本地控制器或集群控制器控制。 数据总线将每个集群控制器与路由器互连，形成连接到路由器的联网组“监控集群”。 在一些实施例中，路由器识别特定的集群，并向适当的集群控制器发送命令，指示它们执行适当的监视操作。 反过来，集群控制器识别其中的某些监视元素，并指示它们根据需要监视结构。 从监控元素返回的数据被发送到集群控制器，然后将这些信息传递给路由器。

    STRUCTURAL HEALTH MONITORING SYSTEM HAVING MEMORY ON STRUCTURE
    13.
    发明申请
    STRUCTURAL HEALTH MONITORING SYSTEM HAVING MEMORY ON STRUCTURE 有权
    具有结构记忆的结构健康监测系统

    公开(公告)号：US20100114503A1

    公开(公告)日：2010-05-06

    申请号：US12432668

    申请日：2009-04-29

    申请人： Chang ZHANG ,  Xinlin QING ,  Irene Li

    发明人： Chang ZHANG ,  Xinlin QING ,  Irene Li

    IPC分类号： G06F19/00

    CPC分类号： G01M5/00

    摘要： Storage of information, such as baseline information and structure ID, in a memory that is mounted on the structure, rather than inside the diagnosis hardware. This allows for faster and more convenient information retrieval. In particular, this approach allows for a more modular system in which different diagnosis hardware or other analyzers can be simply plugged into a structure's sensor network, whereupon they can quickly download any desired structure-specific information (e.g., baseline information, structure ID, and other useful information) from the on-structure memory.

    摘要翻译： 将信息（如基线信息和结构ID）存储在安装在结构上而不是诊断硬件内的存储器中。 这允许更快更方便的信息检索。 特别地，这种方法允许一种更加模块化的系统，其中不同的诊断硬件或其他分析器可以简单地插入到结构的传感器网络中，于是它们可以快速下载任何期望的结构特定信息（例如，基线信息，结构ID和 其他有用的信息）从结构内存。

    Structural health monitoring system having memory on structure
    14.
    发明授权
    Structural health monitoring system having memory on structure 有权
    结构健康监测系统具有结构记忆

    公开(公告)号：US08244486B2

    公开(公告)日：2012-08-14

    申请号：US12432668

    申请日：2009-04-29

    申请人： Chang Zhang ,  Xinlin Qing ,  Irene Li

    发明人： Chang Zhang ,  Xinlin Qing ,  Irene Li

    IPC分类号： G06F19/00

    CPC分类号： G01M5/00

    摘要： Storage of information, such as baseline information and structure ID, in a memory that is mounted on the structure, rather than inside the diagnosis hardware. This allows for faster and more convenient information retrieval. In particular, this approach allows for a more modular system in which different diagnosis hardware or other analyzers can be simply plugged into a structure's sensor network, whereupon they can quickly download any desired structure-specific information (e.g., baseline information, structure ID, and other useful information) from the on-structure memory.

    摘要翻译： 将信息（如基线信息和结构ID）存储在安装在结构上而不是诊断硬件内的存储器中。 这允许更快更方便的信息检索。 特别地，这种方法允许一种更加模块化的系统，其中不同的诊断硬件或其他分析器可以简单地插入到结构的传感器网络中，于是它们可以快速下载任何期望的结构特定信息（例如，基线信息，结构ID和 其他有用的信息）从结构内存。

    Method of detecting and analyzing changes in the external loading conditions of a structure
    16.
    发明授权
    Method of detecting and analyzing changes in the external loading conditions of a structure 有权
    检测和分析结构外部载荷条件变化的方法

    公开(公告)号：US07430911B2

    公开(公告)日：2008-10-07

    申请号：US10928788

    申请日：2004-08-26

    申请人： Xinlin Qing ,  Chang Zhang ,  Irene Li

    发明人： Xinlin Qing ,  Chang Zhang ,  Irene Li

    IPC分类号： G01H1/00

    CPC分类号： G01M5/0033 ,  G01L1/162 ,  G01M5/0041 ,  G01M5/0066 ,  G01M5/0083

    摘要： A method for both detecting and analyzing a change in the loading condition of a structure. A flexible substrate is employed, in which a distributed network of sensors is built. This substrate is either affixed to the surface of the structure, or built within it, so as to be able to detect propagating stress waves. After load change is detected, the resulting sensor signals are analyzed to determine the location, severity, and/or any characteristic frequencies of the load change. This information is then used to determine an appropriate response.

    摘要翻译： 一种用于检测和分析结构的装载状况的变化的方法。 使用柔性基板，其中建立了分布式传感器网络。 该衬底或者固定在结构的表面上，或者内置于其中，以便能够检测传播的应力波。 检测到负载变化后，分析所得到的传感器信号，以确定负载变化的位置，严重程度和/或任何特征频率。 然后将此信息用于确定适当的响应。

    Method of detecting and analyzing changes in the external loading conditions of a structure
    17.
    发明申请
    Method of detecting and analyzing changes in the external loading conditions of a structure 有权
    检测和分析结构外部载荷条件变化的方法

    公开(公告)号：US20060042396A1

    公开(公告)日：2006-03-02

    申请号：US10928788

    申请日：2004-08-26

    申请人： Xinlin Qing ,  Chang Zhang ,  Irene Li

    发明人： Xinlin Qing ,  Chang Zhang ,  Irene Li

    IPC分类号： G01L1/16

    CPC分类号： G01M5/0033 ,  G01L1/162 ,  G01M5/0041 ,  G01M5/0066 ,  G01M5/0083

    摘要： A method for both detecting and analyzing a change in the loading condition of a structure. A flexible substrate is employed, in which a distributed network of sensors is built. This substrate is either affixed to the surface of the structure, or built within it, so as to be able to detect propagating stress waves. After load change is detected, the resulting sensor signals are analyzed to determine the location, severity, and/or any characteristic frequencies of the load change. This information is then used to determine an appropriate response.

    摘要翻译： 一种用于检测和分析结构的装载状况的变化的方法。 使用柔性基板，其中建立了分布式传感器网络。 该衬底或者固定在结构的表面上，或者内置于其中，以便能够检测传播的应力波。 检测到负载变化后，分析所得到的传感器信号，以确定负载变化的位置，严重程度和/或任何特征频率。 然后将此信息用于确定适当的响应。