摘要
火灾源点定位对实现有针对性的灭火,人员疏散都有重要意义。火灾初期阴燃状态下,释放热量小,却产生大量的烟气,针对这一特点,根据早期烟气扩散模型,提出利用平面圆盘传感器阵列探测烟气延时,来实现阴燃火灾的源点定位,并引入了遗传算法对定位误差进行修正。圆盘定位方法的应用,减小了由于烟气自身扩散及其它环境因素带来的误差,大大提高了定位精度。试验结果表明,该方法对早期火灾源点定位效果良好,实效性强。
Fire source localization is of importance for extinguishment with target and evacuation. In fire nonage,the characteristics of smolder are less heat dissipated and more smoke released. According to the model of early fire and the features above,a method of smolder source localization is presented. A mode of planar circular sensor arrays is applied to collect time delay df the smoke and gas signal, which is used to realize the position estimation of smolder source. Genetic algorithm is introduced to modify the orientation errors. In order to improve precision of localization and minimize the errors caused by diffusion itself and environmental factors, localization of circular arrays is employed. Experiments indicate that the method is works effectively and robustness.
出处
《传感技术学报》
CAS
CSCD
北大核心
2009年第8期1208-1212,共5页
Chinese Journal of Sensors and Actuators
基金
广东省科技计划项目资助(0711050600004)"基于智能无线传感网络的楼宇火灾检测系统"
关键词
阴燃
火灾源点定位
圆盘阵列
遗传算法
传感器
smolder
fire source localization
circular arrays
genetic algorithm
sensors
