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一种消防救援人员室内作业定位系统的设计 被引量:2
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作者 刘智博 杨景宏 +2 位作者 刘思宇 冯立辉 闫磊 《燕山大学学报》 CAS 北大核心 2023年第3期221-228,共8页
针对目前室内火灾的消防救援工作中,消防救援人员获取位置信息以提高救援工作效率的实际需求,设计了一种适用于消防救援人员室内作业的定位系统。该系统主要基于惯性定位技术,设计了足部绑式惯性导航模块,该模块通过与激光雷达辅助模块... 针对目前室内火灾的消防救援工作中,消防救援人员获取位置信息以提高救援工作效率的实际需求,设计了一种适用于消防救援人员室内作业的定位系统。该系统主要基于惯性定位技术,设计了足部绑式惯性导航模块,该模块通过与激光雷达辅助模块功能上的融合,可获取消防救援人员在火灾现场作业时的准确位置,且能够减少消防救援人员误入非目标房间的可能性。同时,本文给出了上述模块中保障系统实现高精度定位的两个关键技术,即基于改进支持向量机方法的姿态分类与识别和基于卡尔曼滤波的信息融合。应用场景的测试结果表明,基于相关技术,在宽敞的室内环境下单独采用足部绑式惯性导航模块即可获得较为精确的位置信息,在多房间复杂室内结构环境下,采用激光雷达模块进行辅助后,仍可获得满足实际定位需求的位置信息。 展开更多
关键词 火场救援 室内定位 惯性导航 激光雷达辅助
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Estimating underground mine ventilation friction factors from low density 3D data acquired by a moving LiDAR 被引量:6
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作者 Curtis Watson Joshua Marshall 《International Journal of Mining Science and Technology》 EI CSCD 2018年第4期650-655,共6页
Ventilation system analysis for underground mines has remained mostly unchanged since the Atkinson method was made popular by Mc Elroy in 1935. Data available to ventilation technicians and engineers is typically limi... Ventilation system analysis for underground mines has remained mostly unchanged since the Atkinson method was made popular by Mc Elroy in 1935. Data available to ventilation technicians and engineers is typically limited to the quantity of air moving through any given heading. Because computer-aided modelling, simulation, and ventilation system design tools have improved, it is now important to ensure that developed models have the most accurate information possible. This paper presents a new technique for estimating underground drift friction factors that works by processing 3 D point cloud data obtained by using a mobile Li DAR. Presented are field results that compare the proposed approach with previously published algorithms, as well as with manually acquired measurements. 展开更多
关键词 Mine ventilation Mine design Mobile mapping Roughness estimation Friction factors LiDAR3D point clouds
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