SYSTEM AND METHOD FOR PROCESSING STREAM DATA USING PRE-FILTERING BASED ON SOFTWARE

摘要

A system and a method for processing stream data with software pre-filtering are provided to improve continuous query performance and prevent waste resource waste by previously filtering unneeded stream data out of user interests from the stream data continuously collected from dive sensors in a ubiquitous environment. Each data collector(220,225) collects the stream data for each external sensor(210). Each pre-filter(230,235) previously filters the stream data collected by each data collector. A continuous query processor(250) processes a continuous query for the stream data pre-filtered by the pre-filters. The pre-filter uses each buffer(240,245) of the data collectors as an input buffer and uses the buffer(260) of the continuous query processor as an output buffer.