Localization apparatus for recognizing location of node in sensor network and method thereof
    1.
    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
    2.
    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。

    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 OF PREVENTING DATA COLLOSIONS IN BEACON-ENABLED ZIGBEE SYSTEM HAVING TREE ROUTING SCHEME
    4.
    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 AND APPARATUS FOR ASSIGNING CHANNEL IN AD-HOC NETWORK
    5.
    发明申请
    METHOD AND APPARATUS FOR ASSIGNING CHANNEL IN AD-HOC NETWORK 审中-公开
    用于在AD-HOC网络中分配通道的方法和装置

    公开(公告)号:US20110164573A1

    公开(公告)日:2011-07-07

    申请号:US12596832

    申请日:2007-10-24

    IPC分类号: H04W72/04

    摘要: The present invention provides a method and apparatus for assigning a channel in an ad-hoc network, which can minimize beacon collision in the ad-hoc network and prevent channel overlapping or collision, and thus a channel can be efficiently assigned. The method of assigning a channel including: obtaining join order information which is information on the order in which a first node has been joined to a second node, which is a parent node, and level information of the second node in an ad-hoc network; determining a reference value for setting a channel that is to be assigned to the first node based on an address value of the first node, which is determined based on the join order information and the level information, a level value of the first node, a channel value of the second node, which is determined based on the level information, and the join order information; and determining a channel value of the first node by dividing the reference value by the maximum number of usable channels in the ad-hoc network.

    摘要翻译: 本发明提供了一种用于在自组织网络中分配信道的方法和装置,其可以最小化自组织网络中的信标冲突并且防止信道重叠或冲突,从而可以有效地分配信道。 分配频道的方法,包括:获取作为第一节点已加入到第二节点(其为父节点)的顺序的信息的连接顺序信息和自组织网络中的第二节点的级别信息 ; 基于所述第一节点的基于所述连接顺序信息和所述级别信息确定的地址值,确定用于设置要分配给所述第一节点的信道的参考值,所述第一节点的级别值, 基于级别信息确定的第二节点的信道值和连接顺序信息; 以及通过将所述参考值除以所述自组织网络中的可用信道的最大数目来确定所述第一节点的信道值。

    Method for determining superframe for beacon scheduling
    6.
    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。

    Node device and method for beacon scheduling in ad-hoc network and data transmitting method thereof
    7.
    发明授权
    Node device and method for beacon scheduling in ad-hoc network and data transmitting method thereof 失效
    用于ad-hoc网络中的信标调度的节点设备和方法及其数据传输方法

    公开(公告)号:US07940711B2

    公开(公告)日:2011-05-10

    申请号:US11930874

    申请日:2007-10-31

    IPC分类号: G08C17/00

    摘要: Provided are a device of a node and method for beacon scheduling in an ad-hoc network and a data transmitting method thereof, which reduce power consumptions of nodes in an ad-hoc network when data communications between the nodes occur frequently. A beacon transmitting node checks its residual power. If the residual power is lower than a predetermined level, the beacon transmitting node notifies a plan to change its beacon cycle to other nodes. Thereafter, the beacon transmitting node increases the beacon cycle and transmits a beacon at the increased beacon cycles. Consequently, the beacon transmitting node can change its beacon cycle dynamically according to its power condition. Thus, the life span of the node can be increased. Therefore, it is possible to reduce an overhead of reconstructing a sensor network.

    摘要翻译: 提供了一种用于自组织网络中的信标调度的节点和方法的装置及其数据发送方法,其在节点之间的数据通信频繁发生时减少自组织网络中节点的功耗。 信标发射节点检查其剩余功率。 如果剩余功率低于预定水平,则信标发送节点通知计划将其信标周期改变为其他节点。 此后,信标发送节点增加信标周期,并在增加的信标周期发送信标。 因此,信标发送节点可以根据其功率条件动态地改变其信标周期。 因此,可以增加节点的寿命。 因此,可以减少重建传感器网络的开销。

    Method and system for preventing loss or theft using wireless PAN or LAN
    8.
    发明授权
    Method and system for preventing loss or theft using wireless PAN or LAN 有权
    使用无线PAN或LAN防止丢失或盗窃的方法和系统

    公开(公告)号:US07928840B2

    公开(公告)日:2011-04-19

    申请号:US12062120

    申请日:2008-04-03

    IPC分类号: G08B1/00

    摘要: A method and system of preventing a loss/theft of a surveillance target including a mobile device using a wireless personal area network (PAN) or a wireless local area network (LAN) which can receive, from the mobile device included in the surveillance target via a gateway, location information of the surveillance target generated by using mobile device information for the surveillance target, the mobile device information being collected by a sensor of the mobile device, and signal information communicated between the mobile device and a fixed device, can determine whether there is a loss or theft by comparing surveillance target information and a permission standard, and can provide alert information including the location information of the surveillance target when the loss or theft occurs.

    摘要翻译: 一种防止包括使用无线个域网(PAN)或无线局域网(LAN)的移动设备的监视目标的丢失/窃取的方法和系统,所述无线局域网(LAN)可以从包括在监视目标中的移动设备经由 网关,通过使用用于监视目标的移动设备信息生成的监视目标的位置信息,由移动设备的传感器收集的移动设备信息以及在移动设备和固定设备之间传送的信号信息可以确定是否 通过比较监视目标信息和许可标准,可能会发生丢失或盗窃,并且可以在发生丢失或盗窃时提供包括监视目标位置信息在内的警报信息。

    Beacon scheduling system and method for preventing beacon overlapping
    10.
    发明授权
    Beacon scheduling system and method for preventing beacon overlapping 有权
    信标调度系统和防止信标重叠的方法

    公开(公告)号:US08121080B2

    公开(公告)日:2012-02-21

    申请号:US11947342

    申请日:2007-11-29

    IPC分类号: H04W4/00

    CPC分类号: H04W16/10 H04W48/12 H04W84/18

    摘要: Provided are a beacon scheduling system and method for preventing beacon overlapping in a ZigBee network including routers each with a beacon slot number according to a specific time slot. The system includes: a first router periodically transmitting beacons at a beacon interval according to a specific time slot; and a second router finding the beacon interval by scanning the beacons transmitted by the first router and transmitting beacons within the beacon interval in consideration of a superframe period for transmitting data. When a router in a sensor network operates, the router can efficiently select the beacon transmission time, and a sink node manages beacon overlapping between all the routers. Therefore, stable, low-energy consumption, and excellent performance sensor networking environments can be established in a beacon mode.

    摘要翻译: 提供了一种用于防止ZigBee网络中的信标重叠的信标调度系统和方法,包括根据特定时隙具有信标时隙号的路由器。 该系统包括:第一路由器根据特定时隙周期性地以信标间隔发送信标; 以及第二路由器,通过扫描由第一路由器发送的信标并在考虑用于发送数据的超帧周期之内在信标间隔内发送信标来找到信标间隔。 当传感器网络中的路由器运行时,路由器可以有效地选择信标传输时间,并且汇聚节点管理所有路由器之间的信标重叠。 因此,可以在信标模式下建立稳定,低能耗和卓越性能的传感器网络环境。