| 郭福雁,秦政,王悦.建筑火灾复杂空间疏散路径规划算法研究[J].火灾科学,2025,34(4):337-350. |
| 建筑火灾复杂空间疏散路径规划算法研究 |
| Research on a complex space evacuation path planning algorithm for building fire |
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| DOI：10.3969/j.issn.1004-5309.2025.04.10 |
| 基金项目:天津市企业科技特派员项目(19JCTPJC48900) |
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| 中文关键词: 麻雀搜索算法 疏散路径规划 Tent混沌映射 适应度函数 混合扰动策略 |
| 英文关键词:Sparrow search algorithm Evacuation path planning Tent chaotic mapping Fitness function Mixed disturbance strategy |
| 摘要点击次数: 17 |
| 全文下载次数: 14 |
| 中文摘要: |
| 在建筑火灾疏散过程中,建筑内部通道交叉、拐角众多,加之火灾环境的影响,严重降低了疏散效率并危及人员安全。提出一种改进的麻雀搜索算法(ISSA)疏散路径规划模型,在初始化阶段引入改进的Tent混沌映射增强了种群的多样性,缩短了初始路径长度和最优路径搜索时间;在适应度函数中引入火灾危险函数,考虑温度、CO浓度和能见度对人员疏散影响,使规划路径避开危险区域;在位置更新阶段引入混合扰动策略,在算法陷入局部最优时进行扰动,继续探索最优路径。对比基本麻雀搜索算法,改进的算法在复杂空间环境中的初始路径长度缩短了8.35%,最优路径搜索时间减少了16.54%,最优路径长度缩短了7.57%,且在有火灾情况下能避开危险区域,验证了算法的有效性。 |
| 英文摘要: |
| In the process of building fire evacuation, the complex space environment formed by the crossing of passageways and many corners, coupled with the impact of the fire environment, seriously affects the evacuation efficiency and personnel safety. An improved Sparrow search algorithm (ISSA) evacuation path planning model is proposed. In the initialisation stage, an improved Tent chaotic map is introduced to enhance population diversity and shorten the initial path length and the optimal path search time. The fire risk function is incorporated into the fitness function, and the influence of temperature, CO concentration, and visibility on personnel evacuation is considered, enabling path planning to avoid dangerous areas. The hybrid perturbation strategy is introduced in the position update stage. When the algorithm falls into a local optimum, the optimal path is explored. Compared with the basic sparrow search algorithm, the improved algorithm reduces the initial path length by 8.35%, reduces the optimal path search time by 16.54%, and reduces the optimal path length by 7.57% in a complex space environment. The improved algorithm can avoid dangerous areas in the event of a fire, thereby verifying its effectiveness. |
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