GPS-based real-time location-aware system in outdoor environment

Abstract

A location-aware system, which is capable to detect a user’s whereabout in a region and provide real-time locationas key technology in view of its stability and high precision in outdoor environment. Experiment is conducted to testthis application in campus-based environment. Once GPS receiver detects specific location which is tagged with GPScoordinates, the system provides information relevant to that context and user can operate and react accordingly. Besides,this location-aware system is able to provide user with the route in order to get to a desired place by detecting the directionthat the user is moving towards from his/her initial location. The maping data is transfered via wireless LAN to PDAcaried by the user as well as to the back-end system on real-time basis. The test result is analyzed and discussed tovalidate the effectiveness of using GPS in implementing this system and indicates future works that could be made topark.