APPARATUS AND METHOD FOR ASSIGNING TIME SLOT FOR TRANSMITTING BEACON IN WIRELESS SENSOR NETWORK
    1.
    发明申请
    APPARATUS AND METHOD FOR ASSIGNING TIME SLOT FOR TRANSMITTING BEACON IN WIRELESS SENSOR NETWORK 审中-公开
    用于在无线传感器网络中发送信标的时间轴分配装置和方法

    公开(公告)号:US20090122778A1

    公开(公告)日:2009-05-14

    申请号:US12176800

    申请日:2008-07-21

    IPC分类号: H04J3/00

    CPC分类号: H04W72/02 H04W72/06 H04W84/18

    摘要: A method and an apparatus for assigning a time slot for transmitting a beacon in a wireless sensor network operated in a beacon mode are provided. In the method and apparatus for assigning a time slot according to the present invention, the total time slots assigned to the network are divided into N blocks and a node to which a time slot is exclusively assigned, among nodes to which a specific node is capable of directly and wirelessly transmitting, is selected as a parent node, the network is divided into two or more regions centering the parent node, a block having the time slot assigned to the parent node and adjacent blocks, among the N blocks, are respectively assigned to the regions, a time slot having been yet unassigned, among the time slots belonging to the block assigned to the region to which the specific node belongs among the divided regions, is assigned as the time slot of the specific node.

    摘要翻译: 提供了一种用于在以信标模式操作的无线传感器网络中分配用于发送信标的时隙的方法和装置。 在根据本发明的用于分配时隙的方法和装置中,分配给网络的总时隙在特定节点能够被分配的节点中被划分为N个块和专门分配时隙的节点 被选择为父节点,网络被划分为以父节点为中心的两个或更多个区域,分配有分配给父节点和相邻块之间的时隙的块在N个块中, 分配给分配给特定节点所属于的区域的块的时隙中的尚未分配的时隙被分配为该特定节点的时隙。

    METHOD OF PREVENTING DATA COLLOSIONS IN BEACON-ENABLED ZIGBEE SYSTEM HAVING TREE ROUTING SCHEME
    2.
    发明申请
    METHOD OF PREVENTING DATA COLLOSIONS IN BEACON-ENABLED ZIGBEE SYSTEM HAVING TREE ROUTING SCHEME 审中-公开
    在具有树路由方案的BEACON-EIBBLED ZIGBEE系统中防止数据聚合的方法

    公开(公告)号:US20100110888A1

    公开(公告)日:2010-05-06

    申请号:US12532826

    申请日:2007-10-24

    IPC分类号: H04L1/00

    CPC分类号: H04W74/0816 H04W84/18

    摘要: Provided is a method of preventing a data collision that occurs when two or more child nodes simultaneously transmit data to a parent node in a ZigBee network having a tree routing scheme and operating in a beacon mode. In the ZigBee system having the tree routing scheme and operating in the beacon mode, data communication to the parent node is performed in a beacon frame of the parent node. Here, when several child nodes exist under a single parent node, the child nodes transmit data to the parent node at the moment of receiving the beacon of the parent node, so that the data collision may occur when the child nodes simultaneously transmit the data to the parent node in the beacon frame of the parent node. In the method of preventing a data collision, each of the two or more child nodes is set to wait for its guard time (delay time) when transmitting data to the parent node to induce a normal slotted carrier sense multiple access with collision avoidance (CSMA-CA) operation. Therefore, the data collision can be prevented.

    摘要翻译: 提供了一种防止当两个或多个子节点同时向具有树路由方案并且以信标模式操作的ZigBee网络中的父节点发送数据时发生的数据冲突的方法。 在具有树路由方案并在信标模式下操作的ZigBee系统中,在父节点的信标帧中执行到父节点的数据通信。 这里,当在单个父节点下存在几个子节点时,子节点在接收到父节点的信标的时刻向父节点发送数据,使得当子节点同时发送数据时可能发生数据冲突 父节点的信标帧中的父节点。 在防止数据冲突的方法中,将两个或多个子节点中的每一个设置为在向父节点发送数据时等待其保护时间(延迟时间),以引起具有防冲突的正常时隙载波侦听多路访问(CSMA -CA)操作。 因此,可以防止数据冲突。

    METHOD FOR DETERMINING SUPERFRAME FOR BEACON SCHEDULING
    3.
    发明申请
    METHOD FOR DETERMINING SUPERFRAME FOR BEACON SCHEDULING 失效
    用于确定BEACON调度超帧的方法

    公开(公告)号:US20090274127A1

    公开(公告)日:2009-11-05

    申请号:US12517556

    申请日:2007-10-24

    IPC分类号: H04J3/00

    摘要: Provided is a method for determining superframe to efficiently perform beacon scheduling by allocating superframe lengths which are different according to a routing depth of sensor nodes in a ZigBee based wireless sensor network. The method for determining a superframe for beacon scheduling, includes the steps of: receiving a beacon from a neighboring node and grasping information on a superframe used by the neighboring nodes; and determining a transmission time and a length of own superframe based on superframe information of the grasped neighboring node.

    摘要翻译: 提供了一种通过分配根据基于ZigBee的无线传感器网络中的传感器节点的路由深度而不同的超帧长度来确定超帧以有效地执行信标调度的方法。 用于确定信标调度的超帧的方法包括以下步骤:从相邻节点接收信标并且掌握由相邻节点使用的超帧的信息; 并且基于所掌握的相邻节点的超帧信息来确定自身超帧的传输时间和长度。

    Method for determining superframe for beacon scheduling
    4.
    发明授权
    Method for determining superframe for beacon scheduling 失效
    确定信标调度超帧的方法

    公开(公告)号:US08254342B2

    公开(公告)日:2012-08-28

    申请号:US12517556

    申请日:2007-10-24

    IPC分类号: H04J3/00

    摘要: Provided is a method for determining superframe to efficiently perform beacon scheduling by allocating superframe lengths which are different according to a routing depth of sensor nodes in a ZigBee based wireless sensor network. The method for determining a superframe for beacon scheduling, includes the steps of: receiving a beacon from a neighboring node and grasping information on a superframe used by the neighboring nodes; and determining a transmission time and a length of own superframe based on superframe information of the grasped neighboring node.

    摘要翻译: 提供了一种通过分配根据基于ZigBee的无线传感器网络中的传感器节点的路由深度而不同的超帧长度来确定超帧以有效地执行信标调度的方法。 用于确定信标调度的超帧的方法包括以下步骤:从相邻节点接收信标并且掌握由相邻节点使用的超帧的信息; 并且基于所掌握的相邻节点的超帧信息来确定自身超帧的传输时间和长度。

    METHOD AND APPARATUS FOR SETTING ROUTING PATH IN WIRELESS SENSOR NETWORK
    5.
    发明申请
    METHOD AND APPARATUS FOR SETTING ROUTING PATH IN WIRELESS SENSOR NETWORK 审中-公开
    用于在无线传感器网络中设置路由路径的方法和装置

    公开(公告)号:US20110125922A1

    公开(公告)日:2011-05-26

    申请号:US12808522

    申请日:2008-07-09

    IPC分类号: G06F15/173

    CPC分类号: H04W40/12 H04L45/48

    摘要: Provided are a method and apparatus for setting a routing path in a wireless sensor network. The apparatus for setting a routing path includes a neighbor table storing information of a peripheral device within wireless communication distance of a transmitter transmitting data; a searching unit sequentially searching whether at least one of an address of a destination, a parent address or ancestor address of the destination representing an address of a receiver receiving data transmitted by the transmitter exists or not in the neighbor table; and a link quality indicator (LQI) judging unit transmitting the data to the receiver when a LQI value of the address is greater than a value that is previously set in a case in which an address is searched in the searching unit.

    摘要翻译: 提供了一种在无线传感器网络中设置路由路径的方法和装置。 用于设置路由路径的装置包括存储发送数据的无线通信距离内的外围设备的信息的邻居表; 搜索单元,顺序地搜索表示在所述邻居表中是否存在由所述发射机发送的接收数据的接收方的地址的目的地的地址,母地址或祖先地址中的至少一个; 以及当地址的LQI值大于在搜索单元中搜索地址的情况下预先设置的值时,将数据发送到接收机的链路质量指示符(LQI)判断单元。

    APPARATUS AND METHOD FOR BROADCASTING DATA, AND APPARATUS AND METHOD FOR BROADCASTING RESPONSE DATA, OF SENSOR NODE IN WIRELESS SENSOR NETWORK SYSTEM
    6.
    发明申请
    APPARATUS AND METHOD FOR BROADCASTING DATA, AND APPARATUS AND METHOD FOR BROADCASTING RESPONSE DATA, OF SENSOR NODE IN WIRELESS SENSOR NETWORK SYSTEM 审中-公开
    用于广播数据的装置和方法,以及无线传感器网络系统中传感器节点广播响应数据的装置和方法

    公开(公告)号:US20100272092A1

    公开(公告)日:2010-10-28

    申请号:US12745747

    申请日:2008-07-09

    IPC分类号: H04W72/04

    摘要: Provided are an apparatus and method for broadcasting data, and an apparatus and method for broadcasting response data, of a sensor node in a beacon mode in a wireless sensor network system including a plurality of nodes. According to the apparatus and method for broadcasting data, an admission application message requesting an admission of a sensor node is transmitted to the wireless sensor network system, in which time-division time slots are assigned to each of the nodes of the wireless sensor network system, wherein, in the time-division time slot, the reception function of the node is activated and sensing data is transmitted; a beacon frame is received, which includes information that indicates a broadcasting time slot among the time-division time slots, wherein, in the broadcasting time slot, the reception function of each of the nodes of the wireless sensor network system having received the admission application message, is activated at the same time; and broadcasting data is transmitted during the broadcasting time slot. Accordingly, broadcasting data can be efficiently transmitted in a beacon mode of the wireless sensor network system.

    摘要翻译: 提供了一种用于在包括多个节点的无线传感器网络系统中以信标模式广播数据的装置和方法以及用于广播响应数据的装置和方法。 根据用于广播数据的装置和方法,向无线传感器网络系统发送请求许可传感器节点的准入申请消息,其中分配时隙被分配给无线传感器网络系统的每个节点 其中,在时分时隙中,节点的接收功能被激活并且发送感测数据; 接收到信标帧,其包括指示时分时隙之间的广播时隙的信息,其中在广播时隙中,已经接收到准入应用的无线传感器网络系统的每个节点的接收功能 消息,同时激活; 并且在广播时隙期间发送广播数据。 因此,能够以无线传感器网络系统的信标模式有效地发送广播数据。

    Localization apparatus for recognizing location of node in sensor network and method thereof
    7.
    发明授权
    Localization apparatus for recognizing location of node in sensor network and method thereof 失效
    用于识别传感器网络中节点位置的定位装置及其方法

    公开(公告)号:US07969913B2

    公开(公告)日:2011-06-28

    申请号:US11851370

    申请日:2007-09-06

    IPC分类号: H04L12/28

    CPC分类号: H04W64/00 H04W84/18

    摘要: Provided are a localization apparatus for recognizing a location of a node in a sensor network and a method thereof. The method includes the steps of: a) selecting reference nodes from a plurality of anchor nodes to be used for triangulation; and b) obtaining location information of a target node by performing triangulation using the selected reference node, wherein in the step a), the reference nodes are selected by removing anchor nodes having obstacle factor from a plurality of the anchor nodes where the obstacle factor causes error in a distance measured by the target node.

    摘要翻译: 提供一种用于识别传感器网络中的节点的位置的定位装置及其方法。 该方法包括以下步骤:a)从多个锚节点中选择用于三角测量的参考节点; 以及b)通过使用所选择的参考节点进行三角测量来获得目标节点的位置信息,其中在步骤a)中,通过从多个锚点节点中去除具有障碍因子的锚节点来选择参考节点,其中障碍因素导致 由目标节点测量的距离误差。

    LOCALIZATION APPARATUS FOR RECOGNIZING LOCATION OF NODE IN SENSOR NETWORK AND METHOD THEREOF
    8.
    发明申请
    LOCALIZATION APPARATUS FOR RECOGNIZING LOCATION OF NODE IN SENSOR NETWORK AND METHOD THEREOF 失效
    用于识别传感器网络中节点位置的本地化设备及其方法

    公开(公告)号:US20080080441A1

    公开(公告)日:2008-04-03

    申请号:US11851370

    申请日:2007-09-06

    IPC分类号: H04Q7/24

    CPC分类号: H04W64/00 H04W84/18

    摘要: Provided are a localization apparatus for recognizing a location of a node in a sensor network and a method thereof. The method includes the steps of: a) selecting reference nodes from a plurality of anchor nodes to be used for triangulation; and b) obtaining location information of a target node by performing triangulation using the selected reference node, wherein in the step a), the reference nodes are selected by removing anchor nodes having obstacle factor from a plurality of the anchor nodes where the obstacle factor causes error in a distance measured by the target node.

    摘要翻译: 提供一种用于识别传感器网络中的节点的位置的定位装置及其方法。 该方法包括以下步骤:a)从多个锚节点中选择用于三角测量的参考节点; 以及b)通过使用所选择的参考节点进行三角测量来获得目标节点的位置信息,其中在步骤a)中,通过从多个锚点节点中去除具有障碍因子的锚节点来选择参考节点,其中障碍因素导致 由目标节点测量的距离误差。

    Wafer holding apparatus for ion implanting system
    9.
    发明授权
    Wafer holding apparatus for ion implanting system 失效
    用于离子注入系统的晶片保持装置

    公开(公告)号:US06903348B2

    公开(公告)日:2005-06-07

    申请号:US10302664

    申请日:2002-11-21

    摘要: An ion implanting system and a wafer holding apparatus therefor are provided. The ion implanting system includes x- and y-axis rotating parts; first and second angle measuring circuits; and a controller. The x-axis rotating part rotates a main surface of a wafer about an x-axis, and the y-axis rotating part rotates the main surface of the wafer about a y-axis. The first angle measuring circuit is rotated along with the main surface of the wafer and measures a tilt angle of the main surface of the wafer with respect to the x-axis. The second angle measuring means is rotated along with the main surface of the wafer and measures a rotating angle of the main surface of the wafer with respect to the y-axis. The controlling part, when the measured tilt angles are different from target tilt angles, controls the x- and y-axis rotating parts such that the measured tilt angles are equal to the target tilt angles. In the present invention, the ion implanting system and the wafer holding apparatus therefor can measure and monitor an incidence angle of an ion beam with respect to a tilted wafer.

    摘要翻译: 提供一种离子注入系统及其晶片保持装置。 离子注入系统包括x轴和y轴旋转部分; 第一和第二角度测量电路; 和控制器。 x轴旋转部件围绕x轴旋转晶片的主表面,y轴旋转部件绕y轴旋转晶片的主表面。 第一角度测量电路与晶片的主表面一起旋转并且测量晶片主表面相对于x轴的倾斜角度。 第二角度测量装置与晶片的主表面一起旋转并且测量晶片的主表面相对于y轴的旋转角度。 当测量的倾斜角度与目标倾斜角度不同时,控制部分控制x轴和y轴旋转部件,使得测量的倾斜角度等于目标倾斜角度。 在本发明中,离子注入系统及其晶片保持装置可以测量和监测离子束相对于倾斜晶片的入射角。