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GPS Guided Robot

ECE 4981: Senior Design I Winter 2010. GPS Guided Robot. Mohamad Awada Diaa Younes Advisor: Professor N. Natarajan. Objectives. Design and build an autonomous robot that will be able to: Navigate to a specified destination using GPS Navigate at a specified speed

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GPS Guided Robot

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  1. ECE 4981: Senior Design I Winter 2010 GPS Guided Robot Mohamad Awada Diaa Younes Advisor: Professor N. Natarajan

  2. Objectives Design and build an autonomous robot that will be able to: • Navigate to a specified destination using GPS • Navigate at a specified speed • Detect and avoid obstacles • Measure and display speed The robot can also be controlled manually. The robot will be connected wirelessly to the PC using Bluetooth technology within 60 feet. The PC will be connected to the internet

  3. Some applications • Used in dangerous zones • Unmanned cargo machine • Unmanned terrain mapping machine • Automated valet parking

  4. Design

  5. Design Description GPS • Garmin 16LHV GPS • Second Pic18 acquires signal form GPS • Mathematical Calculation to determine position • GPS Pic interfacing • Communication Protocol : NMEA • UART Serial communication

  6. Design Description GPS (continued..) • Digital Compass HMC for better precision • Connected to PIC : I2C bus interface • Kill switch implementation • PI controller for speed controller

  7. Design Description Sensors • Ultrasonic Sensors: LV-MaxSonar-EZ4 Detects objects from 254-inches (6.45-meters) • Hall Effect Sensors:

  8. Design Description • Microcontroller: PIC18 PWM: To control the duty cycle of the motor • Buck Converter: To produce an output voltage(0-12V) lower than the source(12V) • H-Bridge: TI SN75540 To control the direction of the robot

  9. Schedule First Semester First Semester • Work on proposal • Research parts • Start coding and working with Roomba • Set up and work the GPS • Complete circuit design of control unit and motor control • Building control unit and motor control • Order parts Second Semester • Finish coding • Build the robot • Set up sensors and camera • Implement Bluetooth and Internet connection • Test and troubleshoot • Final paper, demo and presentation ● ● ● ● ● ● ● Progress

  10. Questions

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