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Head-tracking camera mountFinal Presentation
Guðjón Einar MagnússonJón Vilberg GeorgssonÆgir Örn Ingvason
Mechatronics 1Department of Science and Engineering (TVD)
Reykjavik University
November 28, 2012
Introduction
Who are we?Two second year computer science studentsOne third year engineering student.
What is our project about?A camera operated from a distanceWireless transport of signals
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RU Head-tracking camera mount, Final Presentation 2/17
Our goal
Improve human to machine interfaceIntuitive way to control a camera
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RU Head-tracking camera mount, Final Presentation 3/17
Use cases
For what?Placed on a remote controlled vehicleUsed to explore remote or dangerous areasGet a clear view from angles people cant reach
For whom?RC pilotsRobot operatorsLaw enforcers observing an areaPeople who want to try new things
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RU Head-tracking camera mount, Final Presentation 4/17
Requirements
Large field of viewIntuitive controlsFast and reliable feedbackLight and compactLong range wireless communication
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RU Head-tracking camera mount, Final Presentation 5/17
Other solutions
What’s available:Some security cameras have similar featuresMany hobby stores offer this kind of equipment for RC toysMilitary grade version of this is used in fighter pilot helmets
But...SlowLimited field of viewExpensive
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RU Head-tracking camera mount, Final Presentation 6/17
Our solution
Still in prototyping phase but has some promising featuresFull range of view (360 yaw, 180 pitch)Continuous rotationRoom for HD cameraLong range
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RU Head-tracking camera mount, Final Presentation 7/17
Design: Overview
We have a mounted camera that’s controlled by a remote.Two micro-controllers communicatingOne reads the rotationOther mimics that rotation
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RU Head-tracking camera mount, Final Presentation 8/17
Design: Software
Custom libraries written for the Arduino in C++A library to interface with the gyro is provided by the sellerhttp://www.pololu.com/catalog/product/2125https://github.com/pololu/L3GMany of the standard Arduino librarieshttp://arduino.cc/
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RU Head-tracking camera mount, Final Presentation 9/17
Design: Software
Figure: function reading the gyroGuðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RUHead-tracking camera mount, Final Presentation10/17
Design: Hardware
Figure: Mount and remote
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RUHead-tracking camera mount, Final Presentation11/17
Design: Hardware
Figure: Remote
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RUHead-tracking camera mount, Final Presentation12/17
Design: Hardware
Figure: Under the hoodGuðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RUHead-tracking camera mount, Final Presentation13/17
Design: Hardware
Figure: Mount
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RUHead-tracking camera mount, Final Presentation14/17
Performance
How did it perform?Up to 1.6Km range in line of sighthttp://www.sparkfun.com/datasheets/Wireless/Zigbee/XBee-Datasheet.pdfA bit slowNot accurate enoughToo heavy
http://www.youtube.com/watch?v=cqqb-0NFA-w&feature=youtu.be
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RUHead-tracking camera mount, Final Presentation15/17
Future work
What we would like to doBetter sensorsBuilt in video transmitter/receiverBuild a smaller, lighter frameGet a lighter, faster motor
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RUHead-tracking camera mount, Final Presentation16/17
Design: Hardware
Two Arduino micro-controllersOne servoOne stepper motor7,4V 2200mAh battery packStepper control board3-axis gyroTwo xBee pro modulesCustom built aluminum frameCustom built plastic stand
Guðjón Einar Magnússon Jón Vilberg Georgsson Ægir Örn Ingvason, RUHead-tracking camera mount, Final Presentation17/17
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