1 / 18

Wheelchair Power Assist

Wheelchair Power Assist . Michael Bowman Team 28. Overview. Introduction Project Objectives Functional Diagram Similar Products including Market Analysis Project Specifications System Block Diagram Gantt Chart Cost Analysis. Henry W. Owen School. Chelsea, Massachusetts. Consultants:.

donnan
Télécharger la présentation

Wheelchair Power Assist

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Wheelchair Power Assist Michael Bowman Team 28

  2. Overview • Introduction • Project Objectives • Functional Diagram • Similar Products including Market Analysis • Project Specifications • System Block Diagram • Gantt Chart • Cost Analysis

  3. Henry W. Owen School Chelsea, Massachusetts

  4. Consultants: • Client: James • Disorder: Degenerative Muscle disease • Contact: Bob Wierzbicki

  5. Client Request • Due to muscle weakness caused by the client’s disease, he needs a way to add extra force when moving his wheelchair, allowing him to move around on his own.

  6. Project Objectives • Power Assist add-on to retro-fit existing wheelchair • Easy-to-use controller for assist adjustments or total control • Easy removal of Power Assist device

  7. Functional Diagram (diagram courtesy of Yamaha JXW-1)

  8. Similar Products Quickie Xtender Power Assist Sunrise Medical List Price: $6,295

  9. Similar Products e-motion M15 Frank Mobility Systems List Price: $7,675

  10. Market Analysis • 2002 US Census Data : • 2.8 million US citizens required a wheelchair* • 93% of wheelchair users used manual wheelchairs* • Electric wheelchairs can range from $4000 to $15,000+, while manual wheelchairs cost in the hundreds of dollars * Americans with Disabilities: 2002 Current Population Report P70-107

  11. Project Specifications • Two 12V 12A batteries • Two 24V 120W motors • Purchased/Designed Motor Controller • Designed attachment at wheel hub • Designed User Controller

  12. System Block Diagram

  13. Gantt Chart

  14. Gantt Chart Tasks and Subtasks

  15. Cost Analysis – Component Cost • AmstronAP-12120F2 12V/12A battery (2) - $35 each • Sabertooth Dual 12A 6V-24V R / C Regenerative Motor Driver - $65 • 24V brush motor kit (2) - $200 each • PICkit Microcontroller - $50 • Various materials needed for controller - $100

  16. Cost Analysis – Total Cost • Component Cost: (determined from previous page) -- $685 • Direct Labor: (determined using the formula $30.28/hr x 15 hrs/week x 20 weeks) -- $9,084 • Overhead: (determined by 51% of direct labor) -- $4,632.84 • Total Cost: Direct Labor = $9,084.00 + Overhead = $4,634.84 + Component Cost = $685 _____________________________ Total Cost= $14,401.84

  17. Questions?

  18. Sources • http://www.rehabmart.sg/Wheelchairs/Motorized%20Wheelchairs/Yamaha%20JWX-1.pdf • http://www.newdisability.com/wheelchairstatistics.htm • http://www.census.gov/hhes/www/disability/sipp/disab02/awd02.html • http://search.atbatt.com/search?asug=&w=12V&x=0&y=0 • http://www.atbatt.com/product/20766/sla/amstron/12v-12ah/battery • http://www.thesuperkids.com/scmococoki.html • http://www.allegromedical.com/mobility-scooters-c533/quickie-xtender-power-assist-p189918.html?engine=froogle&utm_source=froogle&utm_medium=feed&CS_003=9164468&CS_010=8ab281020bb66dff010bb679f2d02029&gdftrk=gdfV21244_a_7c477_a_7c4637_a_7c189918 • http://www.frankmobility.com/

More Related