ROUTING METHOD IN SENSOR NETWORK

A routing method in a sensor network is provided to enhance reliability and the survival time of a network by reducing power consumption of the network and evenly using energy of an entire network. A routing method in a sensor network includes the steps of: broadcasting advertisement messages to all sensor nodes included in a sensor network of each data collecting node by the data collecting node(S110); performing cluster head node determination algorithm and selecting a cluster head node by each sensor node(S130); broadcasting advertisement messages including the selected information to each sensor node by each selected cluster head node(S150); selecting cluster head node having the strongest signal of the advertisement message and transmitting a participation message to the cluster head node by the sensor node(S170); configuring a data transmission schedule based on TDMA(Time Division Multiple Access) and transmitting a configured schedule to the sensor node(S190); sensing data by each sensor node and transmitting sensing data to the cluster head node of each sensor node suitable for a transmission schedule of each sensor node(S210); transmitting the sensing data to a data collecting node(S230); and providing a user through an internet or other networks with received data collected by sensing and calculating a number of a proper cluster head node in a sensor network based on a total remaining energy amount calculated with received data which is a remaining energy amount of each sensor node(S250).