公开(公告)号：US08467327B2

公开(公告)日：2013-06-18

申请号：US12874856

申请日：2010-09-02

申请人： Seung Ki Hong ,  Jong Arm Jun ,  Cheol Sig Pyo ,  Sang Hun Lee ,  Lynn Choi

发明人： Seung Ki Hong ,  Jong Arm Jun ,  Cheol Sig Pyo ,  Sang Hun Lee ,  Lynn Choi

IPC分类号： G08C17/00

CPC分类号： H04W40/005 ,  H04L45/48 ,  H04W76/28 ,  H04W84/18 ,  Y02D70/00

摘要： Provided are a communication method and system for sensor network. In reporting event occurrence in a real-time sensor network application, a cycle time is divided into an event announcement period and a data transmission period to provide real-time transmission performance and energy efficiency. Each of the periods is again divided into the number of slots equal to the maximum depth of a network. Respective nodes sequentially operate according to their depths in a routing tree during the event announcement period to receive the signal transmitted from the lower node. To remove sleep delay, a slot next to the signal reception slot becomes a signal transmission slot. A node sensed an event transmits a signal informing event occurrence during its signal transmission slot, and this signal includes only the address of the transmission node. When a signal does not exist in the event announcement period, no traffic occurs in the data transmission period and the upper nodes maintain a sleep state. When a signal is transmitted during the event announcement period, nodes transmitting/receiving a corresponding signal operate during the data transmission period to transfer data packets.

摘要翻译： 提供了一种用于传感器网络的通信方法和系统。 在报告实时传感器网络应用中的事件发生时，将周期时间分为事件通知周期和数据传输周期，以提供实时传输性能和能量效率。 每个周期再次被划分为等于网络的最大深度的时隙数。 各个节点在事件发布周期期间根据路由树中的深度依次操作以接收从下层节点发送的信号。 为了消除睡眠延迟，信号接收时隙旁边的时隙成为信号传输时隙。 感测事件的节点在其信号传输时隙期间发送通知事件发生的信号，并且该信号仅包括传输节点的地址。 当事件通知期间不存在信号时，在数据发送期间不发生业务，上层节点保持睡眠状态。 当在事件发布期间发送信号时，发送/接收相应信号的节点在数据传输周期期间运行以传送数据分组。

公开(公告)号：US08341248B2

公开(公告)日：2012-12-25

申请号：US12973628

申请日：2010-12-20

申请人： Seung Ki Hong ,  Jong Arm Jun ,  Cheol Sig Pyo

发明人： Seung Ki Hong ,  Jong Arm Jun ,  Cheol Sig Pyo

IPC分类号： H04L12/28 ,  H04B15/00

CPC分类号： H04L45/742 ,  H04L45/02 ,  H04W40/10 ,  H04W84/18 ,  Y02D70/326

摘要： Provided are an energy-efficient communication method in a group information-based sensor network and a sensor network system using the method. A group exchanges group information and data with another group in order to provide an application service through inter-group cooperation in a sensor network. In this process, a target group is discovered, a communication path is established, and inter-group communication cycle information for energy-efficient communication is transmitted. On the basis of the group information and the communication cycle information, it is possible to minimize the network resource consumption and provide an energy-efficient inter-group communication method.

摘要翻译： 提供了一种基于组信息的传感器网络中的节能通信方法和使用该方法的传感器网络系统。 组与另一组交换组信息和数据，以便通过传感器网络中的组间协作来提供应用服务。 在该过程中，发现目标组，建立通信路径，并且发送用于节能通信的组间通信周期信息。 基于组信息和通信周期信息，可以最小化网络资源消耗并提供节能的组间通信方法。

公开(公告)号：US20100031242A1

公开(公告)日：2010-02-04

申请号：US12183234

申请日：2008-07-31

申请人： Seung Ki Hong ,  Yeon Jun Choi ,  Yang Yu ,  Loren J. Rittle ,  Shin-Young Park ,  Cheol Sik Pyo

发明人： Seung Ki Hong ,  Yeon Jun Choi ,  Yang Yu ,  Loren J. Rittle ,  Shin-Young Park ,  Cheol Sik Pyo

IPC分类号： G06F9/44

CPC分类号： G06F8/60

摘要： A method and apparatus for provisioning a node with executable code is provided herein. Prior to sending out a code request, a node (101) determines a set of nodes that may potentially host the requested code and sends the request to these nodes instead of a blind broadcast. The determination of what nodes have access to the required code is based on a history information of code request of the node, the overhead traffic, and/or application dependencies that are available to the node. The code request is unicast-based and may involve a multi-hop path for both code requests and responses. If this step fails, a broadcast-based approach can be again employed to request the code.

摘要翻译： 本文提供了一种用于提供具有可执行代码的节点的方法和装置。 在发送代码请求之前，节点（101）确定可能潜在地托管所请求的代码并且将该请求发送到这些节点而不是盲目广播的节点集合。 确定什么节点可以访问所需的代码是基于节点可用的节点的代码请求，开销流量和/或应用依赖性的历史信息。 代码请求是基于单播的，并且可以涉及用于代码请求和响应的多跳路径。 如果此步骤失败，则可以再次采用基于广播的方法来请求代码。