1. System for Separation of Recyclables: Final Presentation Boian Berberov Tracy Jamison Jared Stimson

2. Agenda Motivation Ideal System Overview Final System Overview Design Hardware Software Hardware/Software Interaction Performance Testing Cost

3. Motivation The US produces millions of tons of trash every year Landfills are not a sustainable solution Recycling is a feasible solution Reduce 14.4 million tons per year of plastics alone

4. Motivation Government mandates Programs require Participation Efficiency Our system Simplifies recycling at consumer level Improves speed and accuracy

5. Motivation Current systems Manual Semi-automated Automated Our system Feasible Economical Completely automated

6. Ideal System Overview Components Hardware Conveyor Belt Rotary Extractor Stage Controller RFID Reader Host Controller Software Stage Controller Firmware

7. Final System Overview

8. Hardware RFID reader Stage controller Conveyer belt and rotary extractor

9. RFID Reader Reader Intersoft WMROMR2 Serial port RANGE Tags Intersoft EPD50RO Type A: first digit begins with a 6 Type B: first digit begins with a 5, 7, or 8

10. Stage Controller Controls Optical sensors Rotary extractor Microchip PIC18F4550 USB connector Programming header A/D converter Program and Reset Buttons Status LEDs

12. Conveyer Belt & Rotary Extractor Non-functional Dimensions 12” wide – wide enough for milk carton 42” long – long enough for a single stage Cloth for belt Rudimentary extractor

13. Software Design Three types of software System control Error control Extractor movement

14. Hardware/Software Interaction

15. Hardware Testing Stage Controller Phototransistor USB Controller Programmability Oscillator Output Signal Push Buttons

16. System Software Testing Testing done in two stages Test queue Test system software Created a test matrix

17. Queue Adding recyclablePassed Adding trashPassed Removing itemPassed Printing all items in queuePassed Getting size of the queuePassed Checking the first item on the queue for informationPassed System Adding Adding multiple trash itemsPassed Adding a tag two times in a rowPassed Adding different tags – different numbers, same typePassed Adding different tags – same number, same typePassed Removing Removing items when the queue is emptyPassed Extractor move is indicated when first extractor (Type A) needs to be movedPassed Extractor move is indicated when second extractor (Type B) needs to be movedPassed Other Multiple tags read before the next optical sensor is polledPassed Correct delay occurs before extractor movesPassed

18. Performance Software works, giving input through keyboard Stage controller built

19. Cost System cost with n stages: 2*130 + 43.73*n

20. Summary Demonstrate feasibility of a large-scale implementation Additional stages add more functionality Future ideas Gather statistics Product information for marketers

21. Demo

22. Questions?