Usability test of KNRC self-feeding robot

Area of Science:

• Robotics
• Assistive Technology
• Rehabilitation Engineering

Background:

• Assistive robots for daily living activities are under development, but many fail market introduction due to impracticality.
• Self-feeding robots aim to enhance independence for individuals with disabilities, including those with spinal cord injury, cerebral palsy, and traumatic brain injury.

Purpose of the Study:

• To present three versions of the KNRC self-feeding robot, specifically designed for Korean cuisine.
• To evaluate the usability and performance of the KNRC self-feeding robot through comparative testing.

Main Methods:

• Development of three KNRC self-feeding robot prototypes over three years using participatory action design.
• Comparative usability testing involving individuals with disabilities.
• Comparison between the KNRC self-feeding robot and a commercial self-feeding robot (My Spoon).

Main Results:

• The KNRC self-feeding robot demonstrated positive usability test results.
• Users reported higher satisfaction and performance with the KNRC self-feeding robot compared to the commercial product.
• The KNRC robot showed particular effectiveness with sticky Korean foods, such as sticky rice.

Conclusions:

• The KNRC self-feeding robot is a practical and effective assistive device for self-feeding, especially for users consuming Korean food.
• Participatory design and adaptation to specific dietary needs (e.g., sticky rice) are crucial for successful assistive robot development.