公开(公告)号：KR1020090040127A

公开(公告)日：2009-04-23

申请号：KR1020070105756

申请日：2007-10-19

Applicant: 한국전자통신연구원 ,  한국항공대학교산학협력단

Inventor： 이계선 ,  김세한 ,  윤종호 ,  변강호 ,  김내수 ,  표철식

IPC: H04L12/28 ,  H04L12/24

CPC classification number: H04W74/0808 ,  H04W52/0225 ,  H04W84/18 ,  Y02D70/166

Abstract: A media access control device of a medium access control method in a sensor network reducing delay generated between a hop and a sensor node are provided to process data quickly by using a check interval of short length. A first node performs an LPL(Low Power Listening) which is the check interval which is most short among the usable check interval(S510). A first node receiving the downward traffic information determines the check interval by summing the traffic volume which periodically reports to the sink node by summing upward traffic and downward traffic which receives from its own lower nodes(S525). The first node transmits the upward traffic binding update message by using the long preamble of the type '2 fitted to the check interval of the node having the most small traffic(S540).

Abstract translation: 提供传感器网络中的介质访问控制方法的媒体访问控制装置，减少在跳和传感器节点之间产生的延迟，以通过使用短长度的检查间隔来快速处理数据。 第一节点执行作为可用检查间隔中最短的检查间隔的LPL（低功率听力）（S510）。 接收下行业务信息的第一节点通过对通过向上流量求和并从其自己的下级节点接收的向下流量求和周期性地向汇聚节点报告的业务量来确定检查间隔（S525）。 第一节点通过使用适合于具有最小业务量的节点的检查间隔的类型“2”的长前导码来发送上行业务绑定更新消息（S540）。

公开(公告)号：KR100953565B1

公开(公告)日：2010-04-21

申请号：KR1020070105756

申请日：2007-10-19

Applicant: 한국전자통신연구원 ,  한국항공대학교산학협력단

Inventor： 이계선 ,  김세한 ,  윤종호 ,  변강호 ,  김내수 ,  표철식

IPC: H04L12/28 ,  H04L12/24

CPC classification number: H04W74/0808 ,  H04W52/0225 ,  H04W84/18 ,  Y02D70/166

Abstract: Provided are a method and apparatus for controlling media access in a sensor network and a method of managing traffic information. Since traffic information is exchanged between nodes and data is transmitted by using a dynamic long preamble according to receiver nodes, data transmission efficiency can be improved, energy consumed to transmit the long preamble can be reduced, and data transmission delay can be reduced as well.

公开(公告)号：KR100927600B1

公开(公告)日：2009-11-23

申请号：KR1020070106213

申请日：2007-10-22

Applicant: 한국전자통신연구원 ,  한국항공대학교산학협력단

Inventor： 김세한 ,  이계선 ,  윤종호 ,  변강호 ,  김내수 ,  표철식

IPC: H04L12/28 ,  H04L29/02

CPC classification number: H04W74/0808 ,  H04L7/041 ,  H04W52/0216 ,  H04W74/002 ,  Y02D70/166

Abstract: Provided is a method of transmitting/receiving data in a sensor node for reducing overhearing of sensor nodes, and a sensor network which implements the method. A sender node having transmission data from among a plurality of nodes which perform a low power listening (LPL) operation in an asynchronous manner at predetermined time intervals, generates a long preamble including short preambles, each having information including a destination address of the transmission data, a remainder of the long preamble, and a length of the transmission data, and sequentially transmits the second preamble and the transmission data. A receiver node from among the plurality of nodes determines whether a valid signal is sensed during an active state in the LPL operation. If it is determined that the valid signal is sensed, the receiver node receives the short preamble transmitted from the sender node. The receiver node determines a duration time of a deactivated state of the receiver node based on the received first preamble, thereby reducing overhearing in the sensor network.

Abstract translation: 提供一种在传感器节点中发送/接收数据以减少传感器节点的窃听的方法以及实现该方法的传感器网络。 具有来自以预定时间间隔以异步方式执行低功率侦听（LPL）操作的多个节点中的发送数据的发送器节点产生包括短前导码的长前导码，每个前导码具有包括发送数据的目的地地址的信息 ，长前导码的剩余部分和传输数据的长度，并且顺序地发送第二前导码和传输数据。 多个节点中的接收器节点确定在LPL操作中的活动状态期间是否感测到有效信号。 如果确定感测到有效信号，则接收器节点接收从发送器节点发送的短前导码。 接收器节点基于接收到的第一前导码来确定接收器节点的停用状态的持续时间，由此减少传感器网络中的窃听。

公开(公告)号：KR1020090040726A

公开(公告)日：2009-04-27

申请号：KR1020070106213

申请日：2007-10-22

Applicant: 한국전자통신연구원 ,  한국항공대학교산학협력단

Inventor： 김세한 ,  이계선 ,  윤종호 ,  변강호 ,  김내수 ,  표철식

IPC: H04L12/28 ,  H04L29/02

CPC classification number: H04W74/0808 ,  H04L7/041 ,  H04W52/0216 ,  H04W74/002 ,  Y02D70/166

Abstract: A method of transmitting/receiving data in a sensor network for reducing overhearing of sensor nodes is provided to minimize the power consumption of sensor nodes by minimizing the overhearing of the sensor nodes in a sensor network environment using an MAC(Media Access Control). A transmission node having transmission data generates a long preamble including at least short preamble for reducing the overhearing of other nodes(S510). The transmission node transmits the long preamble and the transmission data(S520). At least one first preamble includes the information as to the destination address of the transmission data, the residual amount of the second preamble at its time position and the length of the data to be transmitted.

Abstract translation: 提供了一种在传感器网络中发送/接收数据以减少传感器节点的窃听的方法，以通过使用MAC（媒体访问控制）使传感器网络环境中的传感器节点的监听最小化来最小化传感器节点的功耗。 具有发送数据的传输节点生成包括至少短前导码的长前导码，用于减少其他节点的监听（S510）。 发送节点发送长前导码和发送数据（S520）。 至少一个第一前同步码包括关于发送数据的目的地址，其时间位置的第二前导码的剩余量和要发送的数据的长度的信息。

公开(公告)号：KR101865317B1

公开(公告)日：2018-07-13

申请号：KR1020140004786

申请日：2014-01-14

Applicant: 한국전자통신연구원

Inventor： 박현 ,  정훈 ,  강성수 ,  김세한

IPC: G06F17/30

Abstract: 본발명은수집된데이터의분산저장시, 응용적응처리부(Application Adaptation Pre-Processing)을통하여, 어떤종류의응용서비스를위한빅 데이터라할지라도관련된전처리모듈을선택함으로써자동으로전처리할 요소들이선택되고, 분석메커니즘을위한입력정보로써충분한역할을할 수있도록하여, 범용적으로빅 데이터가공을위한전 처리를수행하도록한다.

公开(公告)号：KR101728173B1

公开(公告)日：2017-04-18

申请号：KR1020110056912

申请日：2011-06-13

Applicant: 한국전자통신연구원

Inventor： 정운철 ,  신창섭 ,  박태준 ,  강호용 ,  김세한 ,  이인환 ,  표철식

IPC: H04W72/02 ,  H04W84/18 ,  H04W74/08

Abstract: 본발명은채널자원을관리하는비컨기반무선개인네트워크의노드장치및 방법에관한것으로, 본발명의노드장치는 PRBS를생성하고, PRBS를이용해서가용한채널들의수를고려한호핑시퀀스를생성함으로써유사임의성(Pseudo-randomness)의특징을갖는호핑시퀀스를생성하고, 호핑시퀀스를이용해서호핑할채널을선택한다.

Abstract translation: 本发明类似地通过在考虑本发明的数目来生成跳变序列涉及一种基于信标的无线专用网络，用于管理信道资源，本发明永汉的节点装置是使用生成PRBS的节点装置和方法，和PRBS信道 生成以伪随机性为特征的跳频序列，并且使用跳频序列来选择跳频的信道。

公开(公告)号：KR101190864B1

公开(公告)日：2012-10-15

申请号：KR1020080128716

申请日：2008-12-17

Applicant: 한국전자통신연구원

Inventor： 김세한 ,  김내수 ,  표철식 ,  추은상 ,  조병관

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  H04W84/18 ,  Y02D70/144 ,  Y02D70/162

Abstract: Disclosed is an asynchronous MAC based sensor node using a Wake-Up RF. The sensor node includes a main transceiver to transmit/receive data, a Wake-Up transceiver to transit a state of the sensor node; and a micro-control unit, which transmits a Wake-Up frame to at least one receiving node through the Wake-Up transceiver such that the receiving node is activated from an inactive state into an active state and transmits data to the activated receiving node through the main transceiver. The asynchronous MAC based sensor node reduces unnecessary power consumption, hop-by-hop delay, and overhead required for timing synchronization, thereby implementing an effective sensor

公开(公告)号：KR1020120103070A

公开(公告)日：2012-09-19

申请号：KR1020110021100

申请日：2011-03-09

Applicant: 한국전자통신연구원

Inventor： 이병복 ,  김세한 ,  박동환 ,  이인환 ,  표철식 ,  방효찬

IPC: H04L29/06

CPC classification number: H04W4/005 ,  H04L69/16 ,  H04W4/70 ,  H04W76/10 ,  H04L63/308 ,  H04L29/06326 ,  H04L65/1046

Abstract: PURPOSE: A method and apparatus for setting a packet are provided to serve as a server by using a conventional user terminal serving as a client of IP socket communications without establishment of port forwarding of a PPP(Point to Point Protocol) server or an IP sharing device. CONSTITUTION: A user terminal obtains a domain name of a MTC(Machine-Type Communications) device and a public IP address of an IPFS(IP Packet Forwarding Server)(S802,S804). The user terminal requests call identifier allocation of the IPFS for connecting to an MTC device(S806). The IPFS assigns one of available TCP/UDP(User Datagram Protocol) communication ports to a call identifier(S808). The IPFS transmits a wake-up signal(S810). The MTC device attempts TCP/UDP socket establishment(S812). The IPFS registers the call identifier and an NAT(Network Address Translation) IP, a port number, and a life cycle value of the MTC device in a packet forwarding information management table(S814). The call identifier is transmitted to the user terminal(S816). [Reference numerals] (100) User terminal; (200) MTC device; (310) DDNS; (320) IPFS; (330) IP sharer; (340) PPP server; (S802) Request for a domain name of the MTC device and a public IP address of IPFS; (S804) Sending a domain name of the MTC device and a public IP address of IPFS; (S806) Request for call identifier allocation; (S808) Call identifier allocation; (S810) Wake-up signal(IPFS public IP, a call identifier); (S812) Socket setting IP packet; (S814) Packet forwarding information registration; (S816) Call identifier; (S818) Socket setting IP packet; (S819) Packet forwarding information registration; (S820) IP data packet; (S822) Changes in the destination address of an IP data packet; (S824) IP data packet; (S826) IP data packet; (S828) Changes in the destination address of the IP data packet; (S830) IP data packet

Abstract translation: 目的：提供一种用于设置分组的方法和装置，作为服务器，通过使用用作IP套接字通信的客户端的常规用户终端，而不建立PPP（点对点协议）服务器或IP共享的端口转发 设备。 构成：用户终端获取MTC（机型通信）设备的域名和IPFS（IP分组转发服务器）的公共IP地址（S802，S804）。 用户终端请求用于连接到MTC设备的IPFS的呼叫标识符分配（S806）。 IPFS将可用的TCP / UDP（用户数据报协议）通信端口中的一个分配给呼叫标识符（S808）。 IPFS发送唤醒信号（S810）。 MTC设备尝试TCP / UDP套接字建立（S812）。 IPFS在分组转发信息管理表中注册呼叫标识符和NAT（网络地址转换）IP，端口号和生命周期值（S814）。 呼叫标识符被发送到用户终端（S816）。 （附图标记）（100）用户终端; （200）MTC设备; （310）DDNS; （320）IPFS; （330）IP分享者; （340）PPP服务器; （S802）请求MTC设备的域名和IPFS的公网IP地址; （S804）发送MTC设备的域名和IPFS的公网IP地址; （S806）呼叫标识符分配请求; （S808）呼叫标识符分配; （S810）唤醒信号（IPFS公网IP，呼叫标识符）; （S812）套接字设置IP包; （S814）分组转发信息登记; （S816）呼叫标识符; （S818）套接字设置IP包; （S819）分组转发信息登记; （S820）IP数据包; （S822）IP数据包的目的地址变更; （S824）IP数据包; （S826）IP数据包; （S828）IP数据包的目的地址的变化; （S830）IP数据包

公开(公告)号：KR1020110071229A

公开(公告)日：2011-06-29

申请号：KR1020090127735

申请日：2009-12-21

Applicant: 한국전자통신연구원

Inventor： 손교훈 ,  김세한 ,  김내수 ,  강호용 ,  주성순

IPC: H04W52/02 ,  H04W84/18

CPC classification number: Y02D70/00 ,  H04W52/0225 ,  H04W84/18

Abstract: PURPOSE: A sensor node equipped having a wake-up module, a wakeup sequence control device, and a method thereof, are provided to control the wakeup sequence of MCU by using a hardware module. CONSTITUTION: If a beacon frame is transmitted or received, a MCU(200) confirms the information of the beacon frame. A MCU establishes registers. MCU converts a present mode into a sleep mode. If the interrupt is inputted, the MCU is converted from the sleep mode into an active mode. A wake-up module(300) multiplies the counter value in case of establishing the registers. A wake-up module outputs the interrupt according to the comparison result of the counter value and the BI(Beacon Interval) value identified from the beacon frame.

Abstract translation: 目的：提供具有唤醒模块，唤醒序列控制装置及其方法的传感器节点，以通过使用硬件模块来控制MCU的唤醒序列。 构成：如果发送或接收信标帧，则MCU（200）确认信标帧的信息。 MCU建立寄存器。 MCU将当前模式转换为睡眠模式。 如果中断被输入，MCU将从睡眠模式转换为活动模式。 在建立寄存器的情况下，唤醒模块（300）将计数器值相乘。 唤醒模块根据计数器值的比较结果和从信标帧识别的BI（信标间隔）值输出中断。

公开(公告)号：KR1020110069264A

公开(公告)日：2011-06-23

申请号：KR1020090125926

申请日：2009-12-17

Applicant: 한국전자통신연구원

Inventor： 김세한 ,  김내수 ,  강호용 ,  손교훈 ,  표철식

IPC: H02J7/04 ,  H04L12/28 ,  H04W84/18

CPC classification number: H02J7/025 ,  G01D21/00 ,  H02J17/00 ,  H02J50/00 ,  H02J50/80 ,  H04W52/0261 ,  H04W84/18

Abstract: PURPOSE: A device and method for supplying power in a wireless sensor network are provided to efficiently process the same data transferred to a cluster head sensor node through a plurality of paths in the wireless sensor network, thereby reducing a wireless transmission number in the cluster head sensor node. CONSTITUTION: Operating software is installed in an MCU(Micro Controller Unit). A charging and controlling circuit(318) comprises a battery managing unit(420) and a battery identifying unit(410). The battery managing unit controls an operation for protecting or charging an internal battery(316). The battery identifying unit wirelessly estimates a chargeable power amount in a cascade sensor node. The battery identifying unit measures the capacity of the internal battery.

Abstract translation: 目的：提供一种用于在无线传感器网络中供电的设备和方法，以通过无线传感器网络中的多个路径来有效地处理传输到簇头传感器节点的相同数据，从而减少簇头中的无线传输号码 传感器节点。 规定：操作软件安装在MCU（微控制器单元）中。 充电和控制电路（318）包括电池管理单元（420）和电池识别单元（410）。 电池管理单元控制用于保护或充电内部电池（316）的操作。 电池识别单元无线地估计级联传感器节点中的可充电功率量。 电池识别单元测量内部电池的容量。