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  11. Future Path Presentation To Passengers Of An Autonomous Wheelchair Using Vibrotactile Feedback

Future Path Presentation to Passengers of an Autonomous Wheelchair Using Vibrotactile Feedback

Yusuke Higashi1, Hiroyuki Takai1, Tetsushi Ikeda1

  • 1Graduate School of Information Sciences, Hiroshima City University, Hiroshima 731-3194, Japan.

Sensors (Basel, Switzerland)
|April 28, 2025

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View abstract on PubMed

Summary
This summary is machine-generated.

This study introduces a new haptic feedback method for autonomous wheelchairs, conveying turn direction and width. This enhanced path presentation improves user understanding and security, especially around obstacles.

Area of Science:

  • Human-Computer Interaction
  • Robotics
  • Assistive Technology

Background:

  • Autonomous wheelchairs offer convenience but can cause passenger anxiety due to unpredictable movements.
  • Current methods for informing passengers about wheelchair paths are limited, often focusing only on turning direction.

Purpose of the Study:

  • To develop and evaluate a novel haptic feedback system for autonomous wheelchairs that communicates both the direction and width of future paths.
  • To enhance passenger understanding and reduce anxiety by providing more comprehensive path information.

Main Methods:

  • Proposed a haptic apparent motion method where feedback duration varies with turning width.
  • Conducted an evaluation experiment to compare the proposed method against directional-only feedback and no feedback.
Keywords:
autonomous wheelchairsfuture path notificationpassenger comfort and safetypath visualization

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Main Results:

  • The proposed method, conveying both direction and width of turns, significantly improved user understanding of the wheelchair's future path.
  • Users reported a slightly greater sense of security when provided with comprehensive path information, including avoidance maneuvers.

Conclusions:

  • Haptic feedback that includes turning width, in addition to direction, enhances passenger comprehension and comfort in autonomous wheelchairs.
  • This approach is particularly beneficial in complex environments with pedestrians and obstacles, improving overall user experience and safety.
tactile apparent motion
vibrotactile feedback