基于双光谱的森林烟火预警监测研究

[Objective]Forest fires are endangering natural resources,economic development and human security.Smoke is an early significant feature of forest fire,which can be used as an effective monitoring object of forest fire.The purpose of this study is to promote the intelligent identification of forest fireworks,build a comprehensive forest fire management platform,and achieve rapid and efficient early warning and monitoring.[Method]In this study,the identification characteristics in the early stage of forest fire were adopted,and the pain demand of forest fireworks business was analyzed from multiple angles.The imaging ability test,monitoring range and positioning ability test,protective performance test and test,and intelligent identification ability test of forest fireworks were carried out for forest fire monitoring equipment.Among them,the intelligent recognition ability of forest fire video sensing equipment such as forest fire prevention professional AI camera and high-precision table is tested,and the recognition ability of different cigarette lighting distances and ignition distances and the off-line fire recognition ability are measured respectively;Through the mode of"infrared coordinate mapping+visible light aided discrimination"and multi-spectral algorithm,a composite deployment structure is established to build a comprehensive forest fire prevention management platform.[Result]In this study,millions of pyrotechnic image samples and non-pyrotechnic sample data were accumulated,and the visible light fire sample database and thermal imaging data sample database were constructed.By adopting advanced front-end smoke identification algorithm and edge-end filtering algorithm,the missing rate of intelligent identification of forest fire smoke is less than one thousandth,and the false alarm rate is less than two times per ten thousand hectares per day.With the characteristics of intelligent identification and multi-terminal combination,the integrated management platform of forest fire prevention can effectively achieve the monitoring and early warning of forest fires and guide the fire brigade to rescue the fire in time.[Conclusion]Under the guidance of dual-spectrum technology,the rationalization and efficient application of forest fireworks detection equipment in early warning and monitoring practice can reduce the rate of missing report and false report of forest fires and meet the pain point demand of forest fireworks business.