Reliable and energy efficient routing apparatus and method for sensor node on the wireless sensor networks

The sensed data routing device and method of the sensor node to provide energy efficiency and reliability, are provided on a wireless sensor network. An apparatus and method are each received for at least one neighbor sensor nodes receiving predefined in the routing set-up message including the neighbor sensor nodes, each of the energy remaining amount information from the standby time in the radio reception range of the sensor node, the neighbor sensor node depending on the energy level information and transmits the sensed data to the parent node selected by selecting a parent node to route from the neighboring sensor nodes. According to the invention, by distributing the energy exhausted in the node data transfer path by the selection taking into account the energy level of the nodes of the network to improve the life and using the alternate path to improve the reliability of data transmission. Sensor Network (sensor networks), modified tree routing (modified tree routing), the braided multi-path routing (braided multi-path routing), energy efficiency (energy efficiency)