Abstract: Provided are a system and method for supporting a logical sensor network (LSN) separate from an actual physical sensor network (PSN) to readily obtain sensing data required by a user or application program in an environment consisting of various types of PSNs.

Abstract: An apparatus for processing an integrated query from various sensor networks and a method thereof are provided. The apparatus includes an integrated query parser for parsing an integrated query and analyzing a syntax of the parsed integrated query; an integrated query execution plan generator for analyzing meaning of the parsed integrated query and generating an integrated query execution query for processing an integrated query; an integrated query optimizer for optimizing a process time for the generated execution plan based on query information stored in the query information storage and sensor network information stored in the sensor network information storage; and an integrated query executer for detailing the integrated query execution plan by controlling an execution order according to the optimized integrated query and transferring the detailed integrated query execution plan to an event data process executer, a temporal data process executer, and a continuous data process executer.

Abstract: An apparatus for processing an integrated query from various sensor networks and a method thereof are provided. The apparatus includes an integrated query parser for parsing an integrated query and analyzing a syntax of the parsed integrated query; an integrated query execution plan generator for analyzing meaning of the parsed integrated query and generating an integrated query execution query for processing an integrated query; an integrated query optimizer for optimizing a process time for the generated execution plan based on query information stored in the query information storage and sensor network information stored in the sensor network information storage; and an integrated query executer for detailing the integrated query execution plan by controlling an execution order according to the optimized integrated query and transferring the detailed integrated query execution plan to an event data process executer, a temporal data process executer, and a continuous data process executer.

Abstract: Disclosed is a location trigger system for a location-based service comprising a mobile station in which a LAT detecting the location trigger is embedded; an LBS platform transmitting location trigger assisted information on a location trigger area to the MS, and handling the location trigger in accordance with events invoked on the basis of the location trigger assisted information; a location agent setting the location trigger to obtain location-based information of the MS; and an LBS application connected to the LP, and receiving a customized LBS based on the location information in accordance with the location trigger.

Abstract: Disclosed is a location trigger system for a location-based service comprising a mobile station in which a LAT detecting the location trigger is embedded; an LBS platform transmitting location trigger assisted information on a location trigger area to the MS, and handling the location trigger in accordance with events invoked on the basis of the location trigger assisted information; a location agent setting the location trigger to obtain location-based information of the MS; and an LBS application connected to the LP, and receiving a customized LBS based on the location information in accordance with the location trigger.