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Designing "DICE" Robot for Rolling Dice - Final Presentation

Explore the development of the "DICE" robot aiming to roll, locate, position, and read dice values for determining win or loss. The project covers objectives, controller, platform, movement, sensors, methods, and challenges faced.

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Designing "DICE" Robot for Rolling Dice - Final Presentation

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  1. Final PresentationEEL 5666CINTELLIGENT MACHINES DESIGN LABORATORYAPRIL 12th, 2005Cliff PannellaRobot: “DICE”

  2. Outline / Overview : • OBJECTIVES • THE ROBOT: • CONTROLLER • PLATFORM • MOVEMENT • SENSORS • METHODS • WHAT WENT WRONG

  3. Objectives: • Roll the dice • Locate the dice • Position the dice properly • Read values • Calculate win or loss • Win: 2,3,4,5,10,11,12 • Loss: 6,7,8,9 • Repeat

  4. Controller: • MAVRIC-II Board • ATMEGA 128 Microcontroller • Power board: (Eagle v4.14) Regulated to 5V

  5. Platform:

  6. Movement:

  7. Sensor Suite Includes: Bump Sensors • Obstacle Detection Infrared Sensors • Obstacle Avoidance • Object Searching/Confirmation Photoreflectors • Value Detection

  8. Bump Sensors Placement:

  9. Infrared Sensors: Placement:

  10. SHARP GP2D120INFRARED OBJECT DETECTOR (Shorter Detection Range: 4 cm-30 cm)Output Voltage (V) Object Distance (cm)

  11. P5587 HAMAMATSU PHOTO IC DIGITAL OUTPUT PHOTOREFLECTOR Circuit:

  12. Dice-Reading AlgorithmTemplate:Start with most straight-forward method:5 and not (1,2,3,4,6,7,8,9)This is very inefficient, and not cost-effective at all

  13. Method: *5 Photoreflectors for each die*Minimum amount necessary to ensure proper read*Explained in following slide

  14. Dice-Reading Algorithm 5 AND NOT 1,3 (1,3) AND NOT (4,5,8) 1 AND NOT (3,5) OR 3 AND NOT (1,5) (1,3,5) (1,5) AND NOT 3 OR (3,5) AND NOT 1 (1,4) OR (1,8)

  15. Probabilities • 36 possible rolls 2: 1 chance8: 5 chances 3: 2 chances9: 4 chances 4: 3 chances10: 3 chances 5: 4 chances11: 2 chances 6: 5 chances12: 1 chances 7: 6 chances Wins: 1+2+3+4+3+2+1 = 16 16/36=44.4% Losses: 5+6+5+4 = 20 chance of winning

  16. Special Sensor (x2) Design done using Eagle Software (Version 4.14)

  17. Assembled SpecialSensor Board:

  18. P5587 HAMAMATSU PHOTO IC DIGITAL OUTPUT PHOTOREFLECTORSOutput Voltage (V) Distance (mm)

  19. Methods/Software: • Incremental Development • Circle playing area searching for die; • Use Obstacle Avoidance Functions • Verify proper storage of die; find the remaining one and do the same • Calculate values using special sensors

  20. WHAT WENT WRONG? • Rolling the dice As of now:

  21. WHAT WENT WRONG (cont’d) • Estimation/Time Allocation • Murphy’s Law • No Laptop

  22. THE END Place your bets!

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