TASK MAINTENANCE METHOD USING QUERY CACHE IN WIRELESS SENSOR NETWORKS

摘要

A task continuing method using a query cache in a wireless sensor network is provided to allow a sensor node to continuously perform a task related to a query by a query cache even when the sensor node moves to a particular area from a different area in a wireless sensor network. A query requested by a user is received from an access node. The query is stored to generate a query cache. In this case, if a position attribute among attributes of the query is similar, the query is stored to generate the query cache. The query is transferred to a corresponding sensor node by using the query cache.