Empirical cumulative distribution function of the characteristic sign of the gas environment during fire

The object of this study is the dynamics a characteristic sign an increment in state gaseous medium premises when thermal source fire appears. subject type empirical cumulative function distribution absence and appearance premises. As feature, probability non-recurrence increments vector states was chosen. results make it possible to quickly identify sources under uncertain conditions. methodology for studying gas has been substantiated. technique includes implementation seven consecutive procedures makes explore specified arbitrary time intervals. two fixed intervals equal duration before after test laboratory chamber investigated. It established that features functions environment allow early detection fire. main decrease values function. For sources, are range 0.15–0.44. These probabilities determined by different ignition rate sources. research indicate possibility using identified fires