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A Tracking System with Location-Based Delivering for Reducing Short Message Transmissions
Abstract:
Combining Short Message Service (SMS) and Global Position System (GPS), this paper proposes a novel method, called Location-based Delivering (LBD), and further develops a realistic system to tracking target's moving. LBD can reduce the number of short message transmissions while maintaining location accuracy within an acceptable range. LBD mainly adopts two proposed techniques: location prediction and dynamic threshold. Location prediction utilizes the current target's location, moving speed, bearing to predict its next location. When the distance between the predicted location and the actual location exceeds a threshold, the target sends a short message of the actual location to the tracker for updating. According to the target’s moving speed, dynamic threshold dynamically adjusts the threshold in order to balance the location accuracy and the amount of short messages. Experiment results show that LBD indeed outperforms other methods because it sends the least number of short messages and also maintains the satisfactory location accuracy.
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2682-2686
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Online since:
January 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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