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User Local Coordinate-Based Accompanying Robot for Human Natural Movement of Daily Life
Hsiao-Kuan Wu1,2, Po-Yin Chen1,3,4, Hong-Yi Wu1
1Department of Physical Therapy and Assistive Technology, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan.
Sensors (Basel, Switzerland)
|July 2, 2021
Summary
This study introduces a new robot control strategy for elderly care. The system enables companion robots to accurately follow users during various movements, enhancing daily activity participation for aging populations.
Area of Science:
- Robotics
- Human-Robot Interaction
- Gerontology
Background:
- Aging societies require assistive technologies to support frail elderly individuals in daily activities.
- Existing companion robots lack the ability to maintain optimal positioning relative to users during diverse activities.
- Precise and adaptive robot positioning is crucial for effective user accompaniment.
Purpose of the Study:
- To propose a user local coordinate-based strategy for companion robots.
- To enable robots to quickly move to and maintain a designated position relative to a moving user.
- To enhance the participation of elderly individuals in daily activities through advanced robotic assistance.
Main Methods:
- Development of a user local coordinate-based control strategy.
- Implementation of a novel "string-pot" approach for measuring robot-to-target position differences.
- Performance assessment in a controlled gait lab environment.
Main Results:
- The proposed strategy successfully enabled the robot to follow the user.
- The robot maintained the designated position during forward, backward, and lateral movements.
- Effective user following was demonstrated during turning and curved path walking.
Conclusions:
- The user local coordinate-based strategy is effective for companion robot positioning.
- This technology can help frail elderly individuals maintain independence and participate more fully in daily life.
- The "string-pot" method provides a viable approach for real-time position measurement in robot control.
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