A 3D Virtual Search Model for the Optimal Evacuation Path of Large Indoor Space under Feature Labeling
To ensure that trapped individuals in large indoor spaces can timely obtain the optimal evacuation path in case of fire,a 3D virtual search model for the optimal evacuation path of large indoor spaces under feature labeling is studied.The 3D laser scanning technology is utilized to obtain point cloud data of large indoor buildings,label and extract point cloud data feature information to construct a 3D model of large indoor spaces.A large-scale indoor evacuation path model is generated based on the construction space data of the building and a virtual search objective function is constructed for the optimal evacuation path with an improved sparrow search algorithm,to obtain the optimal path search results.The test results show that after applying the proposed model,the evacuation path length is 52.9 m,the number of path inflection points is 10,and the time to reach the exit is 11.5 s,which can effectively search for the optimal evacuation path.
万方数据
维普
