%0 Journal Article %T 基于无线传感网的森林火灾FWI系统分析 %A 高德民 %A 林海峰 %A 刘云飞 %A 吴国新 %J 林业工程学报 %D 2015 %R 10.13360/j.issn.1000-8101.2015.01.030 %X 林火的高发性和破坏性决定了林火防控的重要性,无线传感器网络技术的兴起和发展为现代林业火灾预警预报的实现提供了机遇。加拿大森林火险气候指数(Fire Weather Index, FWI)系统是以时滞-平衡含水率理论为基础,通过天气条件的变化计算地面可燃物含水率的情况,根据地表到地下不同层次的可燃物含水率划分森林潜在火险等级。笔者分析研究了FWI系统的原理,并以南京市为参照验证了FWI系统的分析结果,希望在基于FWI系统的基础上发展中国的森林火险等级预警系统。</br>Forest fire prevention is important for its high occurrence and damage. The development of wireless sensor network technology provided an opportunity for forest fire warning and forecast. Canadian forest fire weather index(FWI)system, which was based on delay-equilibrium moisture content theory, calculated the combustible material moisture content according to weather conditions, and divided the forest fire potential levels according to the moisture contents of combustible material from the surface to the underground. In this study, the principle of the FWI system was analyzed and tested in Nanjing. The purpose was to develop Chinese forest fire danger rating system based on FWI technology %K 无线传感网 %K FWI系统 %K 森林火灾预警 %K 森林防火< %K /br> %K wireless sensor networks %K forest fire weather index system %K forest fire detection %K forest fire prevention %U http://lkkf.njfu.edu.cn//oa/darticle.aspx?type=view&id=201501030