Fire Emergency Rescue Path Planning Based On BIM Technolog

With the increasing complexity of urban buildings,it not only brings convenience to people,but also brings greater pressure and challenges to fire emergency rescue evacuation.Therefore,how to quickly plan a safe and effective evacuation road for people in the case of a fire in modern complex buildings has become a hot issue at present.In this paper,building information modeling(BIM)technology is used to carry out 3D modeling of Electrical engineering College of Guizhou University,and improved Wolf pack algorithm is used to carry out evacuation path planning of buildings.Environmental characteristics at different stages of fire are analyzed,and different optimal disaster response paths are planned.A multi-resource and multi-objective resource scheduling model is proposed and an example of resource scheduling after a fire in Electrical Engineering College is analyzed.The work of this paper is as follows:By investigating the influencing factors in the evacuation process,including the characteristics of the personnel in the evacuation process,the characteristics of the building structure and the impact of the fire environment.Then the correlative theory of path planning and the characteristics of BIM technology are introduced.In view of the problems of low calculation efficiency in the early stage and poor calculation accuracy in the wolf pack algorithm,the walking step length of the wolf exploration and the rushing step of the wolf are improved,and the characteristics of building fire are added to make the planned path better.BIM technology was used to model the School of Electrical Engineering of Guizhou University in 3D and simulated through Pathfinder evacuation simulation software.In the software,the personnel,buildings and other parameters are set according to the real environment,and the specific evacuation plan is formulated and simulated and verified.Finally,a multi-objective resource scheduling model is proposed in the case of multiple resources and applied to the resource scheduling problem in the case of fire in Electrical Engineering College of Guizhou University to determine the final resource scheduling scheme.A fire rescue auxiliary system is designed.Taking the fire in the College of Electrical Engineering as an example,the operation process of the system is described.