Zigbee耦合A*算法的疏散路径动态规划与指示系统

A dynamic planning and indication system for evacuation paths based on Zigbee coupled A*algorithm

为有效指引复杂建筑火灾下的人群疏散,在LabVIEW环境中开发一套基于Zigbee技术和A*算法的疏散路径动态规划与指示系统。利用Zigbee无线通信技术实现火灾探测器与疏散路径规划与指示系统间的信息互联,首先,在A*算法的基础上按照设计的起点选择方法,依据火情可快速实现建筑内整体疏散路径的动态规划;然后,规划结果通过设计的发光二极管(LED)点阵疏散指示器实时显示,能够在火灾场景下为人群提供疏散方向可视化的指引,以保证人群安全、快速疏散;最后,开展系统测试以及仿真模拟试验。结果表明:该系统路径计算时间短,疏散指示方向准确,通过疏散路径的动态规划和智能指引,可缩短疏散时间,提高疏散过程的安全性。该系统采用Zigbee无线通信,建设成本低,LED显示屏制作简单,安装方便,因此,可直接应用于实际,替代传统的固定式疏散指示系统,提高建筑内人群安全疏散效率。

In order to effectively guide the evacuation of people in complex building fires,a dynamic planning and indication system for evacuation paths based on Zigbee coupled A*algorithm was developed in the LabVIEW environment.Zigbee wireless communication technology was used to achieve information interconnection between fire detectors and evacuation path planning and indication systems.Firstly,based on A*algorithm and the designed starting point selection method,the dynamic planning of the overall evacuation paths inside the building could be quickly calculated according to the fire situation.Then,the planning results would be displayed in real-time through the designed Light\|Emtting Diode(LED)dot matrix evacuation indicator,which could provide visualization guidance of evacuation directions for crowds in fire scenarios to ensure safe and rapid evacuation.Finally,system testing and simulation experiment verification were conducted.The results indicate that the system has a short path calculation time and can provide accurate evacuation indication direction in real time.Through dynamic planning and intelligent guidance of evacuation paths,evacuation time can be shortened and the safety of the evacuation process can be improved.This system adopts Zigbee wireless communication technology and an LED display screen.Due to its low construction cost,simple production and convenient installation,it can be directly applied in practice,replacing the traditional fixed evacuation indicator system,and improving the safe evacuation efficiency of crowds in buildings.