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Enhanced Walking Assistive Device for Indoor and Outdoor Use

A progress report on developing a versatile, robust walking assistive device to enhance mobility for disabled and elderly individuals indoors and outdoors. The project aims to empower the community with a wide range of assistive functions while ensuring ease of use and intuitiveness. Key criteria include versatility, robustness, user-friendliness, indoor and outdoor operation, cost-effectiveness, and weight management. The specifications include aluminum framing, adjustable height and handle width, propulsion system features, intuitive controls, fall prevention mechanisms, and object detection/avoidance capabilities. Various design iterations have been discussed and improvements such as uniform suspension and modular components have been implemented. Current status includes design overhauls and ordering of necessary parts.

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Enhanced Walking Assistive Device for Indoor and Outdoor Use

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  1. Progress Report Team # 17 Michael Bunne, John Jagusztyn, and Jonathan Lenoff Department of Mechanical Engineering, Florida State University, Tallahassee, FL Project Sponsor: Project Advisors: Dr. Emmanuel G. Collins, Ph.D Department of Mechanical Engineering Dr. Oscar Chuy, Ph.D Department of Mechanical Engineering

  2. Introduction • Problem Statement • The current generation of assistive walking devices is limited in their traversable terrain and functionality. • Indoor operation only • Only perform basic functions • Scooters / electric wheelchairs unnecessary or expensive • Proposed Solution • Develop a walking assistive device designed to actively assist the user in both indoor and outdoor maneuverability. • Further empower the disabled and elderly community • Offer wide-range of assistive functions • Maintain ease of use and intuitiveness integral to current generation walkers 1 of 7

  3. Criteria • Versatility • Robustness • User-friendliness • Indoor operation • Outdoor operation • Cost • Weight Specifications • Frame • Resemble current generation walker in aesthetics and standards • Aluminum framing • Supports up to 300 pounds • Adjustable heights between 32 and 39 inches • Adjustable handle width between 14 and 23 inches • Propulsion • Minimum 11 inch diameter wheels or tracks • Travel over all indoor surfaces, grass, gravel… • Travel up or down slopes up to 10 ° • Move transversely 45° from the center axis • Maximum operating speed of 3 mph • Control & Function • Intuitive user input • Force-based drive control • Fall Prevention • Sit-Down/Stand-Up Assistance • Object Detection/Avoidance • Localization & Navigation 2 of 7

  4. Initial Designs 6 7 8 9 1 2 3 4 5 3 of 7

  5. Interim Designs • Problems: • Large footprint • Tight user space • Non-uniform suspensions • Solutions: • Eliminate angled suspension • Four-wheeled design • Uniform suspension • Truly Modular 4 of 7

  6. Uniform Suspension Truly Modular Final Design Suspension: 5 of 7

  7. Design Overhaul • Handle Redesign/Parts Ordering • Steering Motor Specs/Ordering • Driving Motor/Wheels Ordering • Battery Specs/Ordering • Magnetic Encoder Ordering Current Status 6 of 7

  8. Updated Timeline 7 of 7

  9. Questions?

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