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In view of the existing in intelligent building fire automatic visual inspection system to judge the severity of the fire function is insufficient,cannot provide diversity information,designs and realizes intelligent fire state more visual inspection system,monitoring system design of the underlying control station CCD visual information acquisition module and DP bus information transmission module,increase the function of intelligent fire state more visual inspection system,the mean of the fire detection image is used as the initial background,according to different fire event to obtain real-time update the background image,based on DSP processors obtain binary map object feature,set different threshold to determine what type of fire happens,the different fire event recognition rate reached 95%,is suitable for the new generation of intelligent building monitoring system application. 