Mining is one of the main economic sectors in South Africa. Mining activity contains hazards
such collapsing of structures, presence of dangerous gases, accidental explosions and fires.
Even though most of these hazards are identified and minimized sometimes accidents occur.
These accidents lead to human injuries, direct fatalities and fatalities resulting from delays in
victims getting medical attention as a result of delays in search and rescue missions. The
rescue missions in underground mines present challenges where rescuers are not sure which
locations are victims in, what the area conditions like in the rescue path. A quad rotor
unmanned aerial vehicle (UAV) for search and rescue missions is presented. The UAV is
controlled from a remote location over Wi-Fi. The communication allows data relay to the
ground control station. The communication system is tested on the university’s Wi-Fi network.
The UAV also contains a vision system that contains a human detection algorithm to give an
indication of human presence to rescuers. The human detection system is based on Haar-
Cascade classifiers. The model developed was found to have a false alarm rate of 5×10-3% after
training. The model was further tested on streaming data and the overall average positive
human detection was found to be 97 %. In the same tests overall false average detection was
found to be 2.5 %. The video feed is streamed from the UAV to the ground station (GS) and the
flight control instructions are sent to the UAV from the GS via Wi-Fi. / Thesis (M.Sc.Eng)-University of KwaZulu-Natal, Durban, 2013.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:ukzn/oai:http://researchspace.ukzn.ac.za:10413/10407 |
| Date | January 2013 |
| Creators | Motepe, Sibonelo. |
| Contributors | Stopforth, Riaan. |
| Source Sets | South African National ETD Portal |
| Language | en_ZA |
| Detected Language | English |
| Type | Thesis |
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