Michael Bova- Project Lead Kevin Alderfer- Lead Engineer Ryan Selig- Engineer Soham Chakraborty- Engineer P13015 Navigation Aid for Visually-Impaired/Blind.

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Presentation transcript:

Michael Bova- Project Lead Kevin Alderfer- Lead Engineer Ryan Selig- Engineer Soham Chakraborty- Engineer P13015 Navigation Aid for Visually-Impaired/Blind

Structural Block Diagram

Functional Decomposition

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 (I 2 C) Routing algorithm implementation

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

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

Alternative Reader Options Criteria IDS (IC)CXJ-OEMSkyeTekSirit Model R903 CXJ-ZN-RR0017SkyeModule M9INfinity 110 Frequency MHz MHz MHz13.56 MHz Read Range N/A3-10m1 - 4 m~ 4 inches Size (mm) 7mm x 7mm x 0.9mm210x90x53mm70x53x9 mm35x35x4 mm Supply voltage V (2.7V limited functionality) 2-4V(lithium battery) supply power adapter 5 v3.3 V Connection UART SerialUSB, RS232TTL, USB, SPI, I2CSerial TTL Price (~$35) based on buying 1500 US $ / Piece$80US $ (Tags: +$100)

Best Reader Options Criteria SkyeTekVEEYEEThingMagic Model SkyeModule M10VEEYEE-399XMercury e5-Compact Frequency MHz MHz Read Range ~5m1-6 m1-4 m Size (mm) 42.8x76.5x11.2 mm90x49x0.51 mm56x36x5 mm Supply voltage 3.3V V3.3 V Connection USB, RS232UARTSerial Price US $497US $172 (+$21 shipping)US $1500 Dev Kit ($300 reader)

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

Path Finding Algorithm

Path Following Algorithm

Major Risks Poor choice of RFID Reader Steep learning curve for I 2 C/other interfacing protocol Damaged hardware components Delay in part delivery Poor team communication Group member drops the course

Task Management Zoho project management website: es/ es/