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Autonomous Drink Retriever: Design and Implementation Overview

This presentation focuses on the development of an autonomous drink retrieval robot, designed to fulfill user orders through a simple interface. The robot integrates line tracking navigation, an RFID ordering system, and sonar detection for user proximity. Key components include servos for movement, an LCD display for feedback, and an innovative bottle rack for holding various drinks. This discussion covers the hardware and software solutions employed, showcases a live demonstration, and outlines future enhancements, including refined tracking algorithms and expanded RFID capabilities.

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Autonomous Drink Retriever: Design and Implementation Overview

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  1. REEB: Autonomous Drink RetrieverFinal Presentation Sarit Patel EEL 5666C – IMDL October 30, 2008

  2. Topics • Concept • Design • Hardware Solution • Software Solution • Demo • Conclusions and Future Work

  3. Concept • Design a robot that will retrieve drinks based on a user’s order. • Simple interface between user and robot.

  4. Design • Line tracking for navigation. • RFID ordering system. • Sonar to detect user within a certain range. • LCD and LEDs for feedback. • Servos for movement and actuation. • Bottle rack to hold different bottles. • Interrupt driven system.

  5. Hardware Solution • Line Tracker • 2 6-IR Sensor Line Tracking boards; Forward/Reverse • RFID Reader • ID-12 RFID Reader Module w/ antenna • Easy Serial interface w/ 1-4cm range • Sonar Sensor • Maxbotix LV-EZ1 module • Analog Output – 10mV/inch

  6. Hardware Solution • LCD • Simple 2 Row LCD for feedback • LED • RGB Led on top of robot used for different status indicators • Servos • Continuous Rotation Servos for movement • HS-475HB High Torque Servo for bottle arm

  7. Software Solution • Line tracking achieved with equation based system. • RFID tags sorted based on last two bytes of tag ID. • Interrupt driven system; Updates servo movements and system functions every 20ms.

  8. Demo

  9. Conclusions and Future Work • Robot performs main function correctly. • Custom environment needed to define behaviors in software. • Improve Line Tracking algorithm to smooth out jitters. • Add multiple RFID stations onto table top with wireless link to robot.

  10. Questions?

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