Pokeball: A 3D positioning system using magnetism

Wei Tung Chen, Ling Jyh Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We present a 3D positioning system called Pokeball, which uses a single-source magnetic sphere. The system comprises three mutually orthogonal coils and an Arbitrary Waveform Generator (AWG) to generate the designated signals. By applying Frequency Division Multiplexing (FDM), Pokeball generates two rotating magnetic fields with different frequencies of phase-quadrature current signals. The positioning object is equipped with a three-axis magnetoresistive sensor that measures the strength of the magnetic field and extracts the results into two signals with different frequencies. The phases of the two signals are used to determine the elevation and azimuth angles, while the amplitudes of the signals are used to calculate the distance between the source and the object. Then, based on the calculations, the location of the object is determined. The results of a comprehensive set of experiments demonstrate that Pokeball can achieve an accuracy of less than 40 cm for positioning errors in its effective positioning range. Moreover, Pokeball does not require site surveys, and it is robust against radio interference and environmental obstructions. Our approach has a great deal of potential for use in a wide range of applications, such as mobile systems, wearable computing devices, and location-based applications, where an instantaneous and accurate indoor 3D positioning system is essential.

Original languageEnglish
Title of host publicationProceedings - 2017 IEEE International Conference on Internet of Things, IEEE Green Computing and Communications, IEEE Cyber, Physical and Social Computing, IEEE Smart Data, iThings-GreenCom-CPSCom-SmartData 2017
EditorsGeyong Min, Xiaolong Jin, Laurence T. Yang, Yulei Wu, Nektarios Georgalas, Ahmed Al-Dubi
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages719-726
Number of pages8
ISBN (Electronic)9781538630655
DOIs
Publication statusPublished - 2018 Jan 30
EventJoint 10th IEEE International Conference on Internet of Things, iThings 2017, 13th IEEE International Conference on Green Computing and Communications, GreenCom 2017, 10th IEEE International Conference on Cyber, Physical and Social Computing, CPSCom 2017 and the 3rd IEEE International Conference on Smart Data, Smart Data 2017 - Exeter, United Kingdom
Duration: 2017 Jun 212017 Jun 23

Publication series

NameProceedings - 2017 IEEE International Conference on Internet of Things, IEEE Green Computing and Communications, IEEE Cyber, Physical and Social Computing, IEEE Smart Data, iThings-GreenCom-CPSCom-SmartData 2017
Volume2018-January

Other

OtherJoint 10th IEEE International Conference on Internet of Things, iThings 2017, 13th IEEE International Conference on Green Computing and Communications, GreenCom 2017, 10th IEEE International Conference on Cyber, Physical and Social Computing, CPSCom 2017 and the 3rd IEEE International Conference on Smart Data, Smart Data 2017
CountryUnited Kingdom
CityExeter
Period17/6/2117/6/23

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ASJC Scopus subject areas

  • Hardware and Architecture
  • Renewable Energy, Sustainability and the Environment
  • Communication
  • Artificial Intelligence
  • Computer Networks and Communications

Cite this

Chen, W. T., & Chen, L. J. (2018). Pokeball: A 3D positioning system using magnetism. In G. Min, X. Jin, L. T. Yang, Y. Wu, N. Georgalas, & A. Al-Dubi (Eds.), Proceedings - 2017 IEEE International Conference on Internet of Things, IEEE Green Computing and Communications, IEEE Cyber, Physical and Social Computing, IEEE Smart Data, iThings-GreenCom-CPSCom-SmartData 2017 (pp. 719-726). (Proceedings - 2017 IEEE International Conference on Internet of Things, IEEE Green Computing and Communications, IEEE Cyber, Physical and Social Computing, IEEE Smart Data, iThings-GreenCom-CPSCom-SmartData 2017; Vol. 2018-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/iThings-GreenCom-CPSCom-SmartData.2017.111