Multi-sensors fire shield to protect ancient sites
|The temple of Hera at Olympia [Credit: WikiCommons]|
The automated warning signal generated through the project takes advantage of recent advances in multi-sensor surveillance technologies. It is using wireless sensor networks capable of simultaneously measuring temperature and humidity, collecting information through optical and infrared cameras and local weather stations. Intelligent computer vision and pattern recognition algorithms as well as multi-sensor data fusion techniques automatically analyse the sensor data, according to Grammalidis.
Some experts believe that this automated fire surveillance system may, however, not yet be mature enough. “The replacement of human observation with wireless sensor networks will take some time due to insufficient autonomy and robustness of such devices, although extensive research activity is observed in such networks by the European Union and national governments”, Nikos Komninos, a visiting assistant Professor of network security, at the University of Cyprus, tells youris.com.
The issue of cost of such automated surveillance may also prohibit further use of the technology. “When constant human surveillance is not feasible, then a wireless sensor network becomes a valuable alternative. Its operational cost, however, has to be compared against the cost of human surveillance,” says Martin Hasler, Professor of nonlinear systems at the École Polytechnique Fédérale de Lausanne, Switzerland. “The specific costs are initially the deployment and afterwards maintenance. I would guess that these costs will decrease as more and more wireless sensor networks are deployed.”
Grammalidis argues that it is not only a cost issue: “Since, the loss of a heritage site is irreversible, there is great significance in adopting new technologies for the protection of these sites.” He adds: “The cost of damages and losses caused by wildfires cannot be compared to the cost of using a multi-sensor early warning system.”
Detecting the ignition point of a wildfire is only the first step in fire fighting. What matters next is estimating the fire propagation direction and speed in order to facilitate fire management. “Firesense approximates fire and other phenomena evolution with a representation in 3D [Geographical Information System]. A concrete model, if developed, will enhance the efficiency of the system,“ comments Panayiotis Vlamos, associate professor of informatics, at Ionio University, Greece. “For sure, [this] is a serious attempt in the right direction."
Authors: Elias Aggelopoulos & Menelaos Sotiriou | Source: Youris [February 21, 2013]
Labels Ancient, ArchaeoHeritage, Archaeology, Breakingnews, Europe, Greece, Heritage, More Stuff, Southern Europe