J4 ›› 2014, Vol. 41 ›› Issue (5): 197-202.doi: 10.3969/j.issn.1001-2400.2014.05.033

• Original Articles • Previous Articles     Next Articles

Heterogeneous data synergistic location method in the WSN

XING Tianzhang1;WANG Ju1;CHEN Xiaojiang1;FANG Dingyi1;YANG Zhe2   

  1. (1. School of Information and Technology, Northwest Univ., Xi'an  710127, China;
    2. School of Computer Science, Northwestern Polytechnical Univ., Xi'an  710069, China)
  • Received:2014-01-07 Online:2014-10-20 Published:2014-11-27
  • Contact: XING Tianzhang E-mail:xtz@nwu.edu.cn

Abstract:

For the passive localization problem, a novel method called the heterogeneous data synergistic (HDS) based on the dynamic Bayesian network is proposed, which can coordinate heterogeneous data, and localize the target in the wireless sensor network (WSN). By comprehensively analyzing the three localization models (the signal strength model, the infrared ranging model and the particle filter) in the WSN, their characteristics are summarized in brief. According to the Bayesian network and the different characteristics, the HDS is designed under the dynamic deduction. Simulation results prove that the proposed method is adequate to the passive localization, and that compared with other traditional methods, the localization accuracy is greatly improved.

Key words: wireless sensor network, passive localization, signal strength, infrared ranging, Bayesian network