SENSOR NETWORK SYSTEM RE-ELECTING CLUSTER HEAD NODE

摘要

A sensor network system consisting of a plurality of sensors reselecting the cluster head node is provided to select the cluster head node based on the size of the sensed data and select the cluster head node based on the deviation. A sensor node(210) receives an interest message. A service matching module(211) matches the sensing data and the interest message. A sensor module(212) senses ambient conditions according to a data format. An analysis module(213) compares first sensing data collected from general nodes and second sensing data which the head node gains. A calculation module(214) produces the mean value about sensing datas or the maximum value. A certification module(215) distinguishes whether the sensor node is the cluster head node.