Research on fire source localization in confined space based on the fire characteristic physical quantity information

Fire source localization is of great significance to the firefighting and evacuation. In order resolve problem precise fire in confined space, a method based on diffusion law hot smoke flow early stage proposed this paper. According characteristic physical quantity information collected by sensor array, relative variability correlation degree used obtain signal time delays between units. Then, direction angle units can be determined through geometric relationship, angular principle results. Finally, according results obtained different sets delays, estimation area selected dynamic clustering, center output as comprehensive result. The testing show that performs well achieves high accuracy.