1. Augmented Reality Capture the Flag
ECE Computer Engineering Design Project
Augmented Reality Capture the Flag
Amshu Gongal, Kenan Kigunda and Mathew Pon
2014
Overview
Augmented Reality Capture the Flag is a multiplayer game in which two players each control a rover, with the objective of capturing the opponent’s flag. The first player to reach the opponent’s base and then return to his own base wins. Infrared receivers and emitters are used to implement a shooting feature. When a rover is shot, it’s speed will be diminished.
Components
DE0-Nano FPGA board
Xbee S6 Wi-Fi module is used for communication between the server and the board in the rover.
Infrared emitters to shoot and Infrared receivers to detect hits on each side of the rover
Polulu Low Voltage Motor Controllers to control the two motors.
Design
Each rover consists a DE0-nano FPGA board, Xbee Wi-Fi module for communication, Infrared emitter to shoot and Infrared sensors on four sides to detect hits on all the sides of the rover.
Infrastructure network design is implemented between the Xbee Wi-Fi Module and a PHP socket server for a two way communication. User Interface through a web application is used to send commands to the rover through a server and a router. When a hit event occurs, the rover sends data to the server.
User Interface
The user controls the rover through a web application on a tablet or phone. The user interface offers the user to control the speed and direction and speed of the rover. It also displays the number of hits and shots stats to the user.
Router
PHP Socket Server
Player Browser
DE0 Nano Board
Motor Controller
Infrared Emitter
Wi-Fi Module
Infrared Receiver
For colour ideas, University Visual Identity Guidelines can be found here:
Fig. 3 User Interface through a web application
Fig. 1 Rover that is used in the project.
Power Supply
The board is powered by seven AA NiMH batteries. Three batteries power the motor and four batteries power the board. The batteries can run the motor for 17 minutes.
Acknowledgement
We thank Duncan Elliott, Nancy Minderman, Mahmood Sebdani, Yun Cao, Rick McGregor and Alan Lim for their help in making this project a success.
Features
Players controls the rover through a touch based web application (tablet or phone) control and shoot commands.
Players can move and shoot at the opponent rovers through infrared to accumulate points.
Fig. 2 Design Overview of the game.
Department of Electrical & Computer Engineering