SENSOR NODE OF WIRELESS SENSOR NETWORK AND METHOD FOR PROCESSING MOBILITY THEREOF

摘要

PURPOSE: A sensor node and a portability processing method thereof are provided to reset a routing route by letting a sensor node to determine portability. CONSTITUTION: Beacon signals are received from a router node(S11). The average of the received signal strength of the beacon signals is calculated(S18). Whether or not a portability trend exists is determined, and Whether or not the routing path is reset is determined(S19). If difference between the receiving signal strength of a parent router node and the receiving signal strength of other router nodes is higher than a predetermined threshold value, the connection to the other router nodes is requested to the corresponding router node(S21).