公开(公告)号：US20070175279A1

公开(公告)日：2007-08-02

申请号：US11271351

申请日：2005-11-10

申请人： Shawn Beard ,  Xinlin Qing

发明人： Shawn Beard ,  Xinlin Qing

IPC分类号： G01N29/04

CPC分类号： G01N29/32 ,  G01N29/36 ,  G01N2203/0073 ,  G01N2291/0258 ,  G01N2291/105 ,  G01N2291/106

摘要： Methods and apparatus for reducing crosstalk in a structural health monitoring system. A pair of actuator input signals are sent to an actuator, each resulting in the transmission of stress waves to a corresponding sensor. The sensor then converts these stress waves to a pair of output signals, each having a crosstalk portion due to electromagnetic interference from the input signals to the actuator, and a stress wave portion corresponding to the stress waves. Various methods of varying the actuator input signals, the input to the actuator, and the output of the sensor result in two output signals that can be combined so as to reduce the crosstalk portions and isolate the stress wave portions. This allows actuators and sensors to be placed sufficiently close together that the stress wave portions of sensor output signals can overlap their crosstalk, without corrupting or otherwise compromising the data contained therein.

摘要翻译： 用于减少结构健康监测系统中串扰的方法和装置。 一对致动器输入信号被发送到致动器，每个导致应力波传递到相应的传感器。 然后，传感器将这些应力波转换成一对输出信号，每个输出信号由于从输入信号到致动器的电磁干扰而具有串扰部分，以及对应于应力波的应力波部分。 改变致动器输入信号，致动器的输入和传感器的输出的各种方法产生可组合的两个输出信号，以减少串扰部分并隔离应力波部分。 这允许致动器和传感器被充分地放置在一起，使得传感器输出信号的应力波部分可以与其串扰重叠，而不会破坏或以其他方式损害其中包含的数据。

公开(公告)号：US20070018083A1

公开(公告)日：2007-01-25

申请号：US11453184

申请日：2006-06-13

申请人： Amrita Kumar ,  Xinlin Qing ,  Shawn Beard ,  Chang Zhang ,  Zengpin Yu ,  Irene Li

发明人： Amrita Kumar ,  Xinlin Qing ,  Shawn Beard ,  Chang Zhang ,  Zengpin Yu ,  Irene Li

IPC分类号： G01J1/04 ,  G01J1/42 ,  G01B7/16

CPC分类号： G01B11/18 ,  G01M5/0033 ,  G01M5/0041 ,  G01M5/0066 ,  G01M11/083

摘要： A sensor array embedded within a flexible layer. The sensors, which can be transducers, are controlled by local electronics also embedded within the flexible layer. The invention includes numerous different arrangements of these electronic controllers and their associated transducers. For example, each transducer can have its own controller embedded nearby. Alternatively, one controller can control a number of transducers, and can therefore be embedded in various configurations proximate to one or more of the transducers it controls. The controllers can include various components that impart other advantages, such as wireless transceivers for reducing the number of wires needed within the flexible layer, and local processors for reducing or eliminating the need for a remote data processor.

摘要翻译： 嵌入柔性层内的传感器阵列。 可以是传感器的传感器由也嵌入在柔性层内的本地电子装置控制。 本发明包括这些电子控制器及其相关联的换能器的许多不同布置。 例如，每个传感器可以在其附近嵌入自己的控制器。 或者，一个控制器可以控制多个换能器，并且因此可以嵌入接近其控制的一个或多个换能器的各种配置。 控制器可以包括赋予其他优点的各种组件，例如用于减少柔性层内所需的电线数量的无线收发器，以及用于减少或消除对远程数据处理器的需要的本地处理器。

公开(公告)号：US20060283266A1

公开(公告)日：2006-12-21

申请号：US11156074

申请日：2005-06-17

申请人： Xinlin Qing ,  Shawn Beard ,  Zengpin Yu

发明人： Xinlin Qing ,  Shawn Beard ,  Zengpin Yu

IPC分类号： G01D7/00

CPC分类号： G01D5/35383 ,  G01M5/0041 ,  G01M5/0066

摘要： A sensor/actuator network configured with a number of electrically-interconnected elements. More specifically, the sensors/actuators are each placed in electrical communication with the same transmission line. Various embodiments of such networks employ sensors/actuators connected in electrical series and in electrical parallel. Networks having these configurations, when placed upon a structure, are capable of detecting and/or transmitting stress waves within the structure so as to detect the presence of an impact, or actively query the structure. Advantageously, as these networks employ a single transmission line, they utilize fewer wires than current sensor/actuator networks, thus making them easier to install and maintain. They can also be configured as flexible layers, allowing for further ease of installation and maintenance.

摘要翻译： 配置有多个电互连元件的传感器/致动器网络。 更具体地，传感器/致动器分别与相同的传输线电连通。 这种网络的各种实施例使用以电串联并且电并联连接的传感器/致动器。 具有这些配置的网络，当放置在结构上时，能够检测和/或传送结构内的应力波，以便检测冲击的存在或主动地查询结构。 有利的是，由于这些网络采用单一的传输线路，所以它们使用的电线比目前的传感器/执行器网络更少，从而使得它们更易于安装和维护。 它们也可以配置为柔性层，从而进一步方便安装和维护。

公开(公告)号：US20060079747A1

公开(公告)日：2006-04-13

申请号：US11060650

申请日：2005-02-16

申请人： Shawn Beard ,  Xinlin Qing ,  Hian Chan ,  Chang Zhang ,  Fuo-Kuo Chang

发明人： Shawn Beard ,  Xinlin Qing ,  Hian Chan ,  Chang Zhang ,  Fuo-Kuo Chang

IPC分类号： A61B5/05

CPC分类号： G01N29/11 ,  G01N29/043 ,  G01N29/045 ,  G01N29/07 ,  G01N29/2475 ,  G01N29/262 ,  G01N2291/0231 ,  G01N2291/0258 ,  G01N2291/0427 ,  G01N2291/106

摘要： A sensor network is attached to a structure and employed to detect and analyze load changes. The sensor network has transducers, capable of acting as both passive sensors and active actuators, integrated within it. In a passive mode, the transducers detect load changes upon the structure, such as impacts. Upon detection of a load change, the transducers are engaged in an active mode to actively scan the impact area to determine the location and size of any resulting damage region. In this manner, passive and active systems are integrated within a single, convenient layer that possesses the best features of both active systems and passive systems.

摘要翻译： 传感器网络连接到结构，用于检测和分析负载变化。 传感器网络具有传感器，能够用作集成在其中的无源传感器和主动执行器。 在被动模式下，传感器检测结构上的负载变化，如冲击。 在检测到负载变化时，换能器被接合在主动模式中以主动地扫描冲击区域，以确定任何导致的损伤区域的位置和尺寸。 以这种方式，被动和主动系统集成在具有主动系统和被动系统的最佳特征的单个方便的层中。

公开(公告)号：US20100161283A1

公开(公告)日：2010-06-24

申请号：US12718817

申请日：2010-03-05

申请人： Xinlin QING ,  Sourav BENERJEE ,  Chang ZHANG ,  Shawn BEARD ,  Irene LI ,  Fu-Kuo CHANG

发明人： Xinlin QING ,  Sourav BENERJEE ,  Chang ZHANG ,  Shawn BEARD ,  Irene LI ,  Fu-Kuo CHANG

IPC分类号： G06F15/00

CPC分类号： G01N29/2475 ,  G01N2291/0258 ,  G01N2291/106 ,  H04L43/0817 ,  H04L67/125

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. Other embodiments employ multiple sensor groups directly connected to a central controller, perhaps with distributed local control elements. Methods of operation are also disclosed.

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。 其他实施例采用直接连接到中央控制器的多个传感器组，可能具有分布式本地控制元件。 还公开了操作方法。

公开(公告)号：US20070165218A1

公开(公告)日：2007-07-19

申请号：US11600248

申请日：2006-11-14

申请人： Xinlin Qing ,  Shawn Beard ,  Zengpin Yu ,  Irene Li

发明人： Xinlin Qing ,  Shawn Beard ,  Zengpin Yu ,  Irene Li

IPC分类号： G01J3/44

CPC分类号： A61B5/0002 ,  A61B2560/0443 ,  A61B2562/222 ,  G01N29/34 ,  G01N2291/0258 ,  G01N2291/106

摘要： Use of a single line for switching multiple monitoring elements on/off, and a single line for sending signals to, or receiving signals from, those elements that are switched on. Monitoring elements each have an associated switching element, and each switching element is connected to a common switching line, or control line. A signal from the control line turns each switch on or off. Each monitoring element is also connected to a single signal line, and only those monitoring elements that are turned on can transmit/receive data signals along this signal line.

摘要翻译： 使用单线来开/关多个监控元件，以及一条线路，用于发送信号或从接收到的元件接收信号。 监控元件各自具有相关联的开关元件，并且每个开关元件连接到公共开关线或控制线。 来自控制线的信号使每个开关打开或关闭。 每个监控元件也连接到单个信号线，只有那些接通的监控元件才能沿着该信号线发送/接收数据信号。