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Vertical Hand Position Estimation with Wearable Differential Barometery Supported by RFID Synchronization

  • Hymalai BelloEmail author
  • Jhonny Rodriguez
  • Paul Lukowicz
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 297)

Abstract

We demonstrate how a combination of a wrist-worn and stationary barometer can be used to track the vertical position of the user’s Hand with an accuracy in the range of 30 cm. To this end, the two barometers synchronized each time an RFID reader detects them being in proximity of each other. The accuracy is sufficient to detect a specific shelve of a cupboard on which something has been placed or determine if the user’s hand is touching his/her head or the torso. The advantage of the method over IMU based approaches is that it requires only a wrist-worn sensor (as could be implemented in a smartwatch) and a reference either in an often access location in the environment or a pocket (e.g.in the smartphone) and it does not depend on a stable magnetic environment. The proposed system was tested in two different activities: Shelve recognition in a warehouse picking scenario and movement of the arm to specific body locations. Despite the simplicity of our method, it shows initial results between 55–62% and 73–91% accuracy, respectively.

Keywords

Relative pressure Barometer RFID Order picking Wearable sensing 

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Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2019

Authors and Affiliations

  • Hymalai Bello
    • 1
    Email author
  • Jhonny Rodriguez
    • 1
  • Paul Lukowicz
    • 1
    • 2
  1. 1.German Research Center for Artificial Intelligence DFKIKaiserslauternGermany
  2. 2.Technical University of KaiserslauternKaiserslauternGermany

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