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Tracking Rover

Team Rubber Ducky Alex Chi Joshua Rubin Alexander Starick Ryan Ramos. Tracking Rover. Project Overview. Design a robotic rover IR sensing and tracking system Implement a grabbing device Fully autonomous robot powered by two DC motors Implement system to obtain the IR emitting object.

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Tracking Rover

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  1. Team Rubber Ducky Alex Chi Joshua Rubin Alexander Starick Ryan Ramos Tracking Rover

  2. Project Overview Design a robotic rover IR sensing and tracking system Implement a grabbing device Fully autonomous robot powered by two DC motors Implement system to obtain the IR emitting object

  3. System Diagram

  4. SBC • TS5600 -Technologic Systems • 133Mhz AMD Elan 520 (586) Processor • Compact flash booting • On Board DIO • 2 serial ports • WiFi communication via pcmcia card

  5. SBC Schematic

  6. 68HC11K4 Microprocessor • 8 channel, 8 bit A/D converter • Pulse Width Modulation • Four 8 bit • Two 16 bit • Allows for Serial communication

  7. XC9572 CPLD Schematic

  8. Motor Control Motor speed is directly proportional to applied voltage Will supply pulse to control speed Needs a minimum of 2V to be activated

  9. Grabbing Device Considering several possibilities depending on progress made A) Linear Actuator (most likely) B) Robotic Arm (if time permits)

  10. Power Supply Buck Converter- voltage supplied by a battery (12.8-11.5V), controlled by the PWM chip to adjust the duty cycle Need a constant +5V output for SBC and sensors

  11. Power Supply Schematic

  12. Comparator Circuit Add to notify the user when the battery is 25% charged to avoid completely discharging the battery Give signal to SBC to shut down to prevent brownouts When the voltage drops below 11.5V, LEDs will turn on- will be necessary to shut down the system and recharge the battery

  13. IR Sensors Use IR Receivers and phototransistors IR Receiver- sends a digital signal (+5V if signal detected, 0V if no signal) directly to SBC Phototransistors- Sends a analog signal to HC11 for a/d conversion (strength of signal will depend of closeness of object). Located only on the front side Testing of sensitivity in progress…

  14. Parts List Microprocessor 68M711K4HC11 XC9572 Three 74HC245 AT29C256 ROM AS7256 RAM Power Distribution Battery UC3525, TC427, passive components IR sensors 12 TSOP1156 IR receiver 4 TEKT5400S Phototransistor 15 TSAL7600 IR LEDs 2 AA batteries SBC WIFI card Flash card Flash reader

  15. Budget - Robot Assembly - $350 SBC- $300 Flash Card Reader - $70 Battery + Charger- $200 Passive Components/ Perf Boards/Other - $75 HC11, HC245, CPLD, RAM, ROM - Free IR Receivers, Phototransistors- Free Other $50 ____________________________________________________ Total $975

  16. Schedule

  17. Milestones 1 Create a Software Testbench Write manual robot control software Complete Testing of full HC11 schematic Complete CPLD programming Develop IR system

  18. Milestone 2 Create communication S/W for HC11 Interface HC11 with SBC and motors Add bumper sensors

  19. Division of Labor Joshua Rubin SBC S/W, HC11 software Alexander Chi HC11 H/W and S/W, SBC Alexander Starick Sensors, CPLD, Power Supply, SBC, grabbing device Ryan Ramos Sensors, grabbing device, power supply, SBC

  20. Completed Tasks HC11 awaits simple testing with ROM Power supply is complete Prototype Puck completed Loading of Linux on SCB completed Robotic platform completed

  21. Questions?

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