摘要
防火防灾中的人员疏散研究具有十分重要的意义。传统的方法多采用网格法来确定最佳路径,由于人员个体只能在网格中运动,模拟很难准确。本文首次提出基于几何的人员疏散模型,人可以沿任意方向运动,考虑了人员个体与障碍物、人员个体之间的碰撞检测,按照路径最短的原则确定出了人员疏散的方向和路径,在此基础上,对单个房间内的人员疏散过程进行了模拟。算例结果表明,本文的方法对疏散过程模拟得更真实、更精确,是一种有效的模拟人员疏散过程的手段。
Research of evacuation in fire is significant. Commonly, a building is divided into plane grids, which is help to find the best evacuation route in fire. In the model, personnel moves from one gird to another, which is not close to realizing. In this paper, an evacuation model based on geometrical method is established. In the model, personnel can move to any direction. Criterions of collision detection about personnel and obstacle are also established, and personnel evacuates by finding the shortest rout to exit. Based on the geometrical method, an evacuation in a fired room is simulated. The results of the simulation show that the geometrical method is a effactive means. It can simulate the evacuation more accurate and realizing than that based on gird model.
出处
《工程图学学报》
CSCD
北大核心
2006年第5期23-28,共6页
Journal of Engineering Graphics
关键词
计算机应用
模拟
几何方法
人员疏散
computer application
simulation
geometrical method
evacuation
