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