1. Capstone PDR Fall 2005 Paintball Gun IR Sensing and Tracking Team Doki Doki: Matt Freeman (EE) James Kirby (ECE) Juan Rivera (EE)

2. Capstone PDR Fall 2005 Presentation Outline Project Overview System Diagram –Input subsystem –Processing subsystem –Output subsystem Add-Ons Use Cases Schedule Division of Labor Budget Risks/Contingency Plan

3. Capstone PDR Fall 2005 Project Overview Design a paintball gun auto-detection and tracking system Implement both manual control and automatic control based on IR sensing Stepper motors control gun movement Spartan-3 provides system control

4. Capstone PDR Fall 2005 System Diagram IR Sensors User Interface Data ADC FPGA Data Control EPROM Stepper Motors Actuator LCD Gun Configuration

5. Capstone PDR Fall 2005 System Input IR Sensors User Interface Data ADC FPGA Data Control EPROM Stepper Motors Actuator LCD Gun Configuration

6. Capstone PDR Fall 2005 IR Sensors All warm bodies emit IR radiation –Detect infrared light emitted by humans Mount in an array on gun barrel Sample as many as possible to find the best range and frequency detection IR

7. Capstone PDR Fall 2005 ADC IR sensors output an analog signal Signal must be digital for board input Likely use 8 bit resolution

8. Capstone PDR Fall 2005 User Interface Use 8-bit NES controller to provide serial input to board (via RS-232) Controls switching between manual and automatic operation Controls manual operation itself

9. Capstone PDR Fall 2005 System Processing IR Sensors User Interface Data ADC FPGA Data Control EPROM Stepper Motors Actuator LCD Gun Configuration

10. Capstone PDR Fall 2005 FPGA Spartan-3 Development Board

11. Capstone PDR Fall 2005 FPGA Spartan-3 Development Board Spartan-3 Chip

12. Capstone PDR Fall 2005 FPGA Spartan-3 Development Board Platform Flash PROM

13. Capstone PDR Fall 2005 FPGA Spartan-3 Development Board RS-232 Serial Port

14. Capstone PDR Fall 2005 FPGA Spartan-3 Development Board GPIO Ports

15. Capstone PDR Fall 2005 FPGA Spartan-3 Development Board VGA Port

16. Capstone PDR Fall 2005 Spartan-3 Chip Soft Core Processor

17. Capstone PDR Fall 2005 What is MicroBlaze? Soft Core Processor MicroBlaze is a soft processor core from Xilinx for use in FPGAs Based on a RISC architecture of 32 bits Can connect to the On-Chip Peripheral Bus for access to different modules

18. Capstone PDR Fall 2005 MicroBlaze Soft Core Processor Architecture

19. Capstone PDR Fall 2005 System Output IR Sensors User Interface Data ADC FPGA Data Control EPROM Stepper Motors Actuator LCD Gun Configuration

20. Capstone PDR Fall 2005 Stepper Motors Provide gun left/right and up/down movement Will likely need additional interface such as worm drive Find stepper motors that allow a fine degree of control Allow the system to know the position of sensor

21. Capstone PDR Fall 2005 Actuator Linear actuator physically pulls trigger Chosen over servo motor for faster reaction May require some creative mounting

22. Capstone PDR Fall 2005 LCD Character LCD chosen for ease of use Initially display debugging info Eventually display user target range or other information Not system-crucial

23. Capstone PDR Fall 2005 Paintball Gun Mounted on a Lazy Susan for left/right rotation Find approximate center of mass for pivot position –Worm drive will control up/down motion Will fire Styrofoam balls for indoor testing

24. Capstone PDR Fall 2005 Add-Ons Range finder Character LCD CMOS video camera with television display Display IR signal on a monitor Other modes of operation –Demo mode –Wall painting mode –Dog/kids control mode

25. Capstone PDR Fall 2005 Use Cases Can be used directly as a “sentry” in paintball arenas –Scan for human players Potential home security application Could be extended to move through a hospital and detect patient vitals via IR –Store and later transfer to nurse station

26. Capstone PDR Fall 2005 Project Schedule

27. Capstone PDR Fall 2005 Division of Labor Matt – Spartan-3 Board Initialization and System Integration James – Data Processing and Software Design Juan – Structure and Hardware Design and Implementation

28. Capstone PDR Fall 2005 Tentative Project Budget

29. Capstone PDR Fall 2005 Potential Risks Detecting human body emissions –Targets may require reflectors Range/accuracy of IR detection –Range of target may be limited Stepper motor accuracy/speed –As finely tuned as time allows

30. Capstone PDR Fall 2005 Questions?