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Registered TIME SYNCHRONIZATION AND ROUTING METHOD IN WIRELESS SENSOR NETWORK, AND APPARATUS FOR ENABLING THE METHOD

무선 센서 네트워크에서 시간 동기화 방법 및 예약 기법을 이용한 저전력 라우팅 방법, 그리고 이를 수행하기 위한 장치
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Inventors
Shin Chang Sub, Doh Yoonmee, So Young Hwang, Jin Gwang Ja, Cheol Sig Pyo, Chae Jong- Suk, Kim Bong Soo
Application No.
12667298 (2008.07.11)
Publication No.
20110002251 (2011.01.06)
Registration No.
8848584 (2014.09.30)
Country
UNITED STATES
Project Code
07MD1700, Development of UHF RF-ID and Ubiquitous Networking Technology, Chae Jong- Suk
Abstract
A time synchronization method in a wireless sensor network, a low power routing method using a reservation scheme, and an apparatus for performing the method are provided. The time synchronization method in the wireless sensor network may include: receiving a first synchronization request command packet from a parent node that manages time synchronization for a predetermined synchronization region; receiving, from the parent node, a second synchronization request command packet that has a transmission timestamp value of the first synchronization request command packet; and performing time synchronization for a child node based on a reception time of the first synchronization request command packet, a reception time of the second synchronization request command packet, and the transmission timestamp value of the first synchronization request command packet.
KSP Keywords
Low-Power, Node based, Routing Method, Sensor networks, Time synchronization, Wireless sensor networks(WSNs), synchronization method, wireless sensor