torso control

Control interface for hands-free navigation of personal mobility vehicles

The user is controlling the device while holding an object in hand.

I developed a torso control interface which enables hands-free control with user’s natural upper-body movement for personal mobility devices. I built a support bar which was installed in front of the user’s waist level, the bar consists of both solid segment and soft segment. An array of force sensors was attached on the inner surface of the bar for detecting the pressure distribution of the human body. One IMU sensor was attached on the bar for detecting the bending angle of the user. An algorithm was developed for estimating the driving intention through pressure distribution and bending angle. A calibration algorithm was developed for different users. Different experiments have been conducted to verify the effectiveness of proposed torso control system. The basic methodology and validation of the proposed system was presented in (Chen et al., 2019; Chen et al., 2020), a recent version was presented in (Chen et al., 2022), a complete description of the methodolody and validation of the improved torso control system was presented in ICRA 2024 and accepted by IEEE/ASME Transactions on Mechatronics (Chen et al., 2024; Chen et al., 2024).

Keywords: Hands-free control, intention estimation, human-robot interface.
Skills:: Python, ROS, 3D modeling (Solidworks), dynamics, Kalman filter, Eagle, user study

Reference

  1. Torso Control System with A Sensory Safety Bar for a Standing Mobility Device
    Yang Chen, Diego Paez-Granados, and Kenji Suzuki
    2019 International Symposium on Micro-NanoMechatronics and Human Science (MHS) 2019
  2. Control Interface for Hands-free Navigation of Standing Mobility Vehicles based on Upper-Body Natural Movements
    Yang Chen, Diego Paez-Granados, Hideki Kadone, and 1 more author
    2020 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) 2020
  3. Torso Control Interface with Compliant Coupling for Assistive Mobility Devices
    Yang Chen, Modar Hassan, Diego F. Paez-Granados, and 3 more authors
    Humanoids 2022 Workshop on "the Advances in Close Proximity Human-Robot Collaboration" 2022
  4. Torso-based Control Interface with Compliant Coupling for Standing Mobility Devices
    Yang Chen, Diego F. Paez-Granados, Modar Hassan, and 1 more author
    ICRA 2024 Workshop on "Assistive Systems: Lab to Patient Care" 2024
  5. Torso-Based Control Interface for Standing Mobility-Assistive Devices
    Yang Chen, Diego F. Paez-Granados, Modar Hassan, and 1 more author
    IEEE/ASME Transactions on Mechatronics 2024