Fire-fighting drones

July 2017 Editor's Choice, Fire & Safety, Products & Solutions

In the midst of the worst wildfire to strike the southern Cape coast of South Africa in over 150 years, drones slowly started coming into play as a local fire fighting and disaster management tool. Fire fighters issued a call for drones equipped with heat mapping capabilities, which would allow them to identify hot spots at the greatest risk of flare-ups – a task virtually impossible for ground crews working in blinding smoke and dense undergrowth.

Drones were also harnessed by civilians who filmed the devastation in Knysna and Plettenberg Bay, allowing homeowners around the country and the rest of the world to witness the destruction and confirm whether their own properties were damaged or not.

In years to come, we can expect to see unmanned aerial vehicles (UAVs) or drones taking on an increasingly important role in fire fighting and disaster management, says specialist drone firm Airborne Drones South Africa.

JJ Rebello, foreign government relations manager at Airborne Drones South Africa, says drones will not only improve the effectiveness of fire fighting efforts; they will also reduce the risk to human life during fire fighting operations and stand to limit damage to assets by enabling fire fighters to work proactively, rather than reactively.

“Commercial drones can withstand temperature extremes from below 5 degrees Celsius, up to 50 degrees Celsius and they can be flown to an altitude of 4500 metres, making it possible for fire fighters to deploy drones over areas where fires are active. With the use of advanced thermal imaging cameras transmitting data to command centres, they can identify people or animals, even where visibility is limited by darkness, smoke or vegetation, so allowing emergency teams to pinpoint exactly where assistance is needed. Thermal imaging cameras also support proactive fire fighting measures, by mapping hotspots where flare-ups could occur.”

Rebello notes that in the security industry, it is estimated that a drone can take the place of 12 foot soldiers. “The same might apply in disaster management,” he says. “Sending in technology reduces risk to human life and allows resources to be deployed only where assistance is needed.”

Drones equipped with Light Detection and Ranging (Lidar) technology support the three-dimensional modelling of forest structures and surface topography, which allows for the development of fire behaviour models, fuel maps and prescribed burn plans. Drones are already being harnessed internationally to monitor and improve planned burns and provide real-time maps of fire progress.

For insurance purposes, drones also offer access to structures that are cut off from road traffic or too high to allow easy access, so supporting claims investigations and processing after disasters. Drone mapping allows insurance firms to rapidly document the scene without intruding on clean-up operations or exposing investigators to potentially hazardous materials; as well as providing data on risk factors associated with the damage.





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