Model-based object tracking in wireless sensor networks

Chao Chun Chen, Chien Han Liao

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

Tracking moving objects is one of the most common requirements in wireless sensor network applications. Most tracking schemes predict a target's location based on a single object movement model and periodically activate nearby sensors to monitor the target. However, in most real-world situations, a target exhibits multiple movement patterns. Thus, multiple movement models are required to accurately describe the target's movement. This paper proposes a tracking framework, called model-based object tracking system (MOTS), that allows a sensor network to adaptively apply the most suitable tracking mechanism to monitor the target under various circumstances. To fairly and accurately evaluate all tracking modules, this study further develops a monitoring-cost evaluator to evaluate the monitoring cost of the inactive tracking modules, and then designs three tracking module selection strategies, the Greedy Strategy, Min-Max Strategy, and Weighted Moving Average Strategy, to select the most effective tracking module to monitor the target in each period. A set of experiments is conducted to evaluate MOTS and compare it against existing tracking systems. The obtained results reveal that the cost efficiency of MOTS is considerably better than that of existing tracking systems.

原文English
頁(從 - 到)549-565
頁數17
期刊Wireless Networks
17
發行號2
DOIs
出版狀態Published - 2011 二月 1

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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