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Modern building high - level and multi-functional , large-scale and complicated , and prompted the emergency evacuation system will become the inevitable means to reduce casualties . The primary goal of the emergency evacuation in the safety of personnel , has been the emergency evacuation instructions system design . However , the existing emergency evacuation instructions , most of the monomeric form indicating the function , under certain circumstances , can not play , there are a considerable number of people can not identify evacuation direction and find the exit in the fire , and finally killed . Therefore , you should study a dynamic indication of the safe evacuation of the channel system dynamically guide the evacuation under fire happens , reduce evacuation time , avoid blind escape when the fire broke out . At present, the existing dynamic escape indication system generally do not consider the fire risk in buildings and fire spread , there are some limitations . Start from the analysis of the structure of typical evacuation of the building by a fire risk analysis , divided into different fire danger zone , according to the building fire and personal injury , the dangerous state of the two fires , and the division of fire alarm level , reasonable detection mode is selected . And fire risk monitoring point selection principles and the principle of dynamic evacuation system , types of evacuation of more serious fires occurring . The final fire simulation software FDS fire simulation, better analysis of fire spread , and with examples analysis , dynamic judgment evacuation instructions direction . Personnel when applying this method to increase the fire escape probability , change the existing fire indication system status quo .
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