基于红外温度场的高速公路隧道火灾检测与消防炮灭火OA

Fire detection is the key to avoiding fire occurrence.To address the problems of low fire identification rate and inability to accurately locate the fire source when traditional fire detection methods are applied in highway tunnels,a fire cannon-integrated fire detection and extinguishing method based on infrared thermal imaging was proposed:An uncooled infrared array sensor and an AT32F435 microcontrol-ler were integrated into the fire cannon device.By layered processing of the infrared images of the fire scene,the temperature field distribution images were extracted,and early fire identification was achieved according to the characteristics of temperature jump rate and spatial propagation;combined with the calcu-lation and identification detection of the temperature field,the fire occurrence point was confirmed,and the fire coordinates were output to control the movement of the fire cannon,so as to enable the fire cannon to accurately point at the ignition point for fire extinguishing.This scheme provides an alternative way for tun-nel fire extinguishing and provides a reference for the intelligent networking of tunnel fire cannons.