基于传感器十字交叉式排布的飞机货舱早期火源定位研究  

Early fire source location in aircraft cargo holdbased on crossover arrangement of sensors

作　　者：熊枭 陈达 韩宙 张伟[2,3] Xiong Xiao;Chen Da;Han Zhou;Zhang Wei(School of Safety Science and Engineering,Civil Avia-tion University of China,Tianjin 300300,China;School of Transportation Science and Engineering,Civil Aviation Univer-sity of China,Tianjin 300300,China;Key Laboratory of Civ-il Aviation Thermal Hazards Prevention and Emergency Re-sponse,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学安全科学与工程学院,天津300300 [2]中国民航大学交通科学与工程学院,天津300300 [3]中国民航大学民航热灾害防控与应急重点实验室,天津300300

出　　处：《消防科学与技术》2022年第12期1632-1636,共5页Fire Science and Technology

基　　金：中央高校基本科研业务费中国民航大学专项项目(3122020048);中国民航大学科研启动基金项目(2020KYQD02)

摘　　要：提出一种早期火灾火源定位方法,用于飞机在高空航行时低温低压状态下的货舱火源定位情形。该方法基于传感器十字交叉式排布,利用传感器检测到烟雾信号的延迟间隔,计算烟雾传播位移差,溯源定位火源位置。可在火灾发生早期阶段,精确定位火源,有效减少灭火剂的投放量,减轻灭火剂残留物对大气环境的损害,促进绿色民航建设。为验证定位算法的准确性,采用PyroSim火灾模拟软件按1∶1建立了A330-300后下货舱模型,随机选取20个火源点,在低温低压状态下火源定位平均相对误差为2.44%。结果表明,该定位方法定位精准度高,适用于飞机货舱火源探测,具有良好的可行性。This paper presents an early fire source location meth-od for cargo hold fire location under low temperature and low pressure during high altitude flight.The method is based on the cross arrangement of sensors,the delay interval of smoke signal detected by sensors is used to calculate the displacement differ-ence of smoke propagation,and the fire source location is traced.It can accurately locate the fire source in the early stage of fire,effectively reduce the amount of fire extinguishing agent,reduce the damage of fire extinguishing agent residue to the atmosphere environment,and promote the construction of green civil aviation.In order to verify the accuracy of the posi-tioning algorithm,A330-300 rear lower cargo compartment model is 1∶1 established in PyroSim fire simulation software,and 20 fire source points are randomly selected.The average relative error of fire source location under low temperature and low pressure is 2.44%.The results show that this positioning method has high positioning accuracy and is suitable for fire source detection in aircraft cargo hold.

关 键 词：飞机货舱 早期火灾 火源定位 低温低压 绿色民航 PyroSim 

分 类 号：X921[环境科学与工程—安全科学] V244.12[航空宇航科学与技术—飞行器设计]