The Middlesex University rehabilitation robot

Area of Science:

• Robotics
• Assistive Technology
• Human-Computer Interaction

Background:

• Severely disabled individuals often require assistive devices for daily tasks.
• Existing assistive technologies may lack the dexterity or integration needed for comprehensive support.
• Wheelchair-mounted robotic manipulators offer a potential solution for enhancing independence.

Purpose of the Study:

• To develop and evaluate an electrically powered wheelchair-mounted manipulator.
• To assess the usability and performance of the robotic system for severely disabled users.
• To identify areas for design improvement based on user feedback and performance metrics.

Main Methods:

• Detailed review of specifications and construction of the wheelchair-mounted manipulator.
• Implementation of a control architecture incorporating gesture recognition and other input systems.
• User testing with both disabled and non-disabled individuals to gather performance and usability data.

Main Results:

• The developed wheelchair-mounted manipulator has a payload capacity exceeding 1 kg and a reach of 0.7-0.9 m.
• User testing indicated the system was easy to operate.
• Initial trials revealed the prototype was approximately 50% slower than comparable systems prior to design modifications.

Conclusions:

• The electrically powered wheelchair-mounted manipulator shows promise as an assistive device for severely disabled persons.
• Ease of use was confirmed, but performance optimization is necessary.
• Further design modifications are required to improve the system's speed and efficiency to meet user expectations and functional needs.