公开(公告)号：KR1020090090461A

公开(公告)日：2009-08-26

申请号：KR1020080015679

申请日：2008-02-21

Applicant: 삼성전자주식회사 ,  성균관대학교산학협력단

Inventor： 권대형 ,  김선기 ,  문강영 ,  추현승 ,  샤코브블라디미르블라디미로브

IPC: H04L12/28

CPC classification number: H04W52/0219 ,  G05B2219/25291 ,  H04W52/0277 ,  Y02D70/00

Abstract: A method for expanding lifetime of a sensor node in a wireless sensor network and a system therefor are provided to determine total sleeping time of each sensor in consideration of connectivity of a network, thereby expanding lifetime of a sensor while maintaining desired network reliability. A reliability value guaranteeing network connectivity is set according to connection significance of a network(430). Operation probability of the sensor node is calculated(440). If the operation probability is larger than the set reliability value, total sleeping time with the minimized operation probability is calculated(460). The operation probability of the sensor node is a value dividing a power amount of the sensor node by sum of the total sleeping time and the power amount of the sensor node. Connection significance of the network is transmission significance of data delivered in a network.

Abstract translation: 提供了一种用于扩展无线传感器网络中的传感器节点的寿命的方法及其系统，以便考虑到网络的连通性来确定每个传感器的总睡眠时间，从而在保持期望的网络可靠性的同时延长传感器的寿命。 根据网络的连接重要性设置保证网络连通性的可靠性值（430）。 计算传感器节点的运行概率（440）。 如果操作概率大于设定的可靠性值，则计算具有最小运算概率的总睡眠时间（460）。 传感器节点的操作概率是将传感器节点的功率量除以总睡眠时间与传感器节点的功率量之和的值。 网络的连接意义是网络中传送的数据的传输意义。