Vigilant monitoring of mountainous forest is very difficult and expensive – but a fire that takes hold can be even more expensive. The fires in
The system tested in remote forest areas of Coimbra in Portugal uses WiMAX, a microwave access technology that can deliver data at up to 75 megabits per second over a range of 70km between fixed points (802.16.d), or its mobile version can provide 15mb/s over a four-kilometre radius (802.16.e). With WiMAX, remote spots can have a broadband connection without the need to lay expensive cable.
“We selected this environment to test our WiMAX solution because in a normal city or town you have plenty of communications channels, such as UMTS telephony or ADSL,” says Enrico Angori, a leading researcher on the project. “It is in extremely remote areas that it makes sense to use this wireless technology.”
WiMAX is not new. But the EU-funded WEIRD research team behind the Portuguese project extended the resilience and flexibility of the WiMAX technology. Bi-directionality was also tested, meaning that the fire monitors can pan or zoom onto a potential trouble spot with the remote cameras as well as receive signals from them.
Further improvements in seamless handover of a communication flow from one system to another will be a future area of focus for the team, according to Giuseppe Martufi, another researcher with WEIRD....
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