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P13015 Navigation Aid for Visually-Impaired/Blind

P13015 Navigation Aid for Visually-Impaired/Blind. Michael Bova- Project Lead Kevin Alderfer - Lead Engineer Ryan Selig- Engineer Soham Chakraborty - Engineer. Structural Block Diagram. Functional Decomposition. Challenges Faced by Last Iteration.

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P13015 Navigation Aid for Visually-Impaired/Blind

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  1. P13015Navigation Aid for Visually-Impaired/Blind Michael Bova- Project Lead Kevin Alderfer- Lead Engineer Ryan Selig- Engineer SohamChakraborty- Engineer

  2. Structural Block Diagram

  3. Functional Decomposition

  4. Challenges Faced by Last Iteration • RFID Reader poorly documented & more difficult to implement than anticipated • Inconsistent tag reading • RFID Reader consumed too much power • Magnetometer interfacing (I2C) • Routing algorithm implementation

  5. Our goals: • Find a suitable replacement RFID Reader • Fully integrate/implement all components • Improve path finding/following algorithm • Reduce power consumption

  6. Finding a new RFID Reader • Must have low operating voltage: <4V • Must be of Ultra High Frequency (850-950 MHz) to be compatible with current tags • Must have a read range >= 1m • Budget: $200 • Must have good documentation/support • Physical size

  7. Alternative Reader Options

  8. Best Reader Options

  9. Working Software Components • Keypad input • Accepts input and verifies destination • Motor pulse width modulation • 2/3 work • RFID Reader sporadically reads tags • Path finding algorithm works correctly • Room for improvement

  10. Path Finding Algorithm

  11. Path Following Algorithm

  12. Major Risks • Poor choice of RFID Reader • Steep learning curve for I2C/other interfacing protocol • Damaged hardware components • Delay in part delivery • Poor team communication • Group member drops the course

  13. Task Management • Zoho project management website: • https://projects.zoho.com/portal/ritp13015#todomilestones/499387000000013021

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