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Lessons Learnt from the design & operation of a search & rescue UAV in the ARCAA UAV Outback Challenge 2007

Degen, Shane C. (2008) Lessons Learnt from the design & operation of a search & rescue UAV in the ARCAA UAV Outback Challenge 2007. In Walker, Rodney & Mejias, Luis (Eds.) AUVSI Asia-Pacific 2008, 17-18 February 2008, Singapore. (Unpublished)

Abstract

The team is divided into four main technical areas; aircraft systems, airborne platform, target acquisition and ground station The UAV aircraft system integrates GPS, accelerometers, gyros, pitot tubes (static/dynamic) and an ultrasonic for accurate above ground estimation for landing. It is hoped to be able remove the GPS and integrate in DGPS from GPSatSys for a more accurate solution, the mission strategy relies on an accurate delivery to give us the edge in this competition. This however, is seemingly extremely unlikey for the 2007 entrant. For image processing, a human-in-the-loop is aimed at for a baseline. The next phase is to try to identify the human (processing on the ground) in both IR and EO spectrums. The viability of an IR solution in daylight is currently being tested. The final Phase, but this may not be ready for 2007, is to statistically fuse these two filtered images and have completely automated identification. There are three communication links in the SRUAV system. The command and control link will be implemented using a 900MHz FHSS 9.2kbps radio modems (MicroHardCorp). Additionally, a 2.4GHz transmission of PAL video is the baseline for the secondary link. A tracking antenna will track this link with the UAVs position being fed in via RS-232 from the Ground Station. The platform in which testing of the system was conducted was essentially a trainer-style model aeroplane called a Big Lift and dubbed “Emigo”. Modifications were made, doubling the engine size, to attain speeds considered necessary to complete this mission with some contingency time (around 180 km/hr). Once designed and tested these systems were implemented on a more efficient structure based around the Burt Rutan Long-EZ. This is a 2.4m wingspan aeromodel, a pusher prop canard wing. The structure has been reinforced, and a more powerful engine is used (50cc). We will also add various modifications to the fuselage, etc for housing electronics.

Impact and interest:

7 citations in Scopus
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ID Code: 12975
Item Type: Conference Paper
Keywords: UAV Outback Competition SRUAV 2007 ARCAA
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > AEROSPACE ENGINEERING (090100) > Aerospace Engineering not elsewhere classified (090199)
Divisions: Current > Research Centres > Australian Research Centre for Aerospace Automation
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2008 Shane Degen, ARCAA, BEE-QUT
Deposited On: 11 Mar 2008
Last Modified: 19 Sep 2013 10:18

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