Tham khảo tài liệu 'advances in satellite communications part 9', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Part 5 Sensor Networks 5 Design Issues of an Operational Fire Detection System integrated with Observation Sensors George Halikias1 George Leventakis2 Charalambos Kontoes3 Vasilis Tsoulkas2 Leonidas Dritsas4 and Athanasios Pantelous5 1School of Engineering and Mathematical Sciences City University London 2Center of Security Studies KEMEA Ministry of Citizen Protection Athens 3Institute for Space Applications and Remote Sensing National Observatory of Athens Hellenic Air Force Academy Division of Automatic Control Athens University of Liverpool Department of Mathematical Sciences 1 5UK 2 3 4Greece 1. Introduction For the past decades large scale devastating fire events have been occurring in the Mediterranean region. In particular the wider region of Greece has a history of severe fire crisis amounting to devastating damages to property ecology and losses of civilian lives. High and often abrupt climate variations hot dry winds the global warming changing conditions as well as organized criminal activities are the main causes of severe and multiple fire breakouts. These events have resulted in serious crisis situations which often have been developed into natural disasters. Thus fire events put in danger not only the existing ecological stability of large geographical areas of the country but also the security of hundreds or even thousands of civilian lives see also Marke 1991 for cable tunnels and his overview of the level of Telecom Australia s operations. One of the most challenging and serious problems during the evolution of a forest fire is to obtain a realistic and reliable overall common operational view of the situation under development. Combating fires with large fronts is an extremely difficult and dangerous task due to high and abrupt changes of wind direction and intensity high spatial and temporal variations as well as due to the high variety of forestry and natural vegetation of the environment. In that respect reliable early warning and suppression
