1. Amshu Gongal Kenan Kigunda Matthew Pon
ARCap
Amshu Gongal
Kenan Kigunda
Matthew Pon

2. Augmented-Reality Capture the Flag
WHAT? How did
he do that?!
This is really awesome!
AZN MODE!

3. Motivations
Fun
Lendable
Awesome
Group 7

4. Functionality Users control cars to play a CTF game
Cars start at a base; they must travel to the opponent’s base and back without being shot
User controls cars with a keyboard, through Wi-Fi

5. Design – Power Supply AA Rechargeable batteries: 2300 mAh rating
Rover + Motor Controller:
(2 * ) mA * 2.4V / 1000 = Wh
2 Batteries: 2300 mAh * 2.4V / 1000 = 5.52 Wh
Time est. 5.52/ = 16.4 mins
On-board Electronics:
Wi-Fi card + IR circuits + DE0 board = W
4 Batteries: 2300 mAh * 4.8V / 1000 = W
Time est. 3 hours

6. Design – Operation of Network

7. Design – Operation of Infrared
IR receiver
board
infrared controller
IR emitter 4
GPIO
Design – Operation of Infrared

8. Design – Operation of Motor
board
motor controller
DC motor controller
left motor
right motor

9. Design – Wi-Fi Hardware
CPU
SDRAM
Wi-Fi controller
DOUT[]
DIN[]
clk
reset_n
Xbee Wi-Fi module
DOUT
DIN
nCTS
nRTS
nRESET
GPIO (pin 29)
VCC
3.3 V
500 uF
GND

10. Design – Infrared Hardware
CPU
SDRAM
infrared controller
(ADC)
RCV[32]
GPIO (pin 1)
GPIO (pin 11)
IR emitter
IR receiver
VCC
5 V
GPIO (pin 29)
3.3 V

11. Design – Infrared Hardware

12. Design – Infrared Hardware

13. Design – Challenges Camera component = 5,760,000 = 5.8 Mbps
(160 x 120) resolution * 24 bit color * 10 fps * (10/8) header
= 5,760,000 = 5.8 Mbps
Infrared range
with one emitter accepting ~3.3 V, < 20 cm
with three emitters accepting > 100 mV, ~ 4 feet
Current draw, 60mA

14. Design – FPGA Components
Wi-Fi controller
Infrared controller
Motor controller

15. User Controls User must be able to physically see rover
Control movement of rover and shoot at targets through a keyboard
User input from a web form through a tablet or a smartphone

16. Test Plan Software – Command Interface
onInfraredReceive
onMessageReceive – Shoot
onMessageReceive – Move

17. Test Plan Hardware – Infrared Emitter/Receiver
Infrared Emitter, (Camera)
Infrared Receiver, (Oscilloscope)
Together, (Oscilloscope)
Connection to Wi-Fi network
Internet Protocol
Hardware – Xbee Wi-Fi Module

18. Test Plan Software – Network Interface
Rover as a TCP client
Rover as a TCP server
Wi-Fi Receive Queue, overrun and underrun
messageSend
Cn y’all hear me out derrrrr?

19. Test Plan Infrared Interface
Emission
Reception
Timer
GPIO Interrupts

20. Application Notes
IR Circuits
Motor Controller
Wi-Fi Interfacing

21. Optional Features to Add
Special FX
Android App
Video feed
F D C B A

22. Questions